| City | State | Area Code(s) |
| Sheldon | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sheldon | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sheldon | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Sheldon | ND | North Dakota Area Code(s): 701 |
| Sheldon | SC | South Carolina Area Code(s): 803 843 864 |
| Sheldon | VT | Vermont Area Code(s): 802 |
| Sheldon | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Sheldonville | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Shell Knob | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Shell Lake | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Shell Rock | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Shell | WY | Wyoming Area Code(s): 208 307 |
| Shelley | ID | Idaho Area Code(s): 208 |
| Shellman | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Shellsburg | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Shelly | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Shelocta | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shelter Island Heights | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shelter Island | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shelton | CT | Connecticut Area Code(s): 203 860 |
| Shelton | NE | Nebraska Area Code(s): 308 402 |
| Shelton | WA | Washington Area Code(s): 206 253 360 425 509 |
| Shenandoah Junction | WV | West Virginia Area Code(s): 304 |
| Shenandoah | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Shenandoah | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shenandoah | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Shenorock | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shepardsville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Shepherd | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Shepherd | MT | Montana Area Code(s): 406 |
| Shepherd | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Shepherdstown | WV | West Virginia Area Code(s): 304 |
| Shepherdsville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Sheppard Afb | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sheppton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Sherard | MS | Mississippi Area Code(s): 228 601 662 |
| Sherborn | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Sherburn | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Sherburne | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sheridan Lake | CO | Colorado Area Code(s): 303 719 970 |
| Sheridan | AR | Arkansas Area Code(s): 479 501 870 |
| Sheridan | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sheridan | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sheridan | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Sheridan | ME | Maine Area Code(s): 207 |
| Sheridan | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Sheridan | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Sheridan | MT | Montana Area Code(s): 406 |
| Sheridan | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sheridan | OR | Oregon Area Code(s): 503 541 |
| Sheridan | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sheridan | WY | Wyoming Area Code(s): 208 307 |
| Sherman Oaks | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sherman | CT | Connecticut Area Code(s): 203 860 |
| Sherman | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sherman | ME | Maine Area Code(s): 207 |
| Sherman | MS | Mississippi Area Code(s): 228 601 662 |
| Sherman | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sherman | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sherman | WV | West Virginia Area Code(s): 304 |
| Shermans Dale | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Sherrard | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sherrill | AR | Arkansas Area Code(s): 479 501 870 |
| Sherrill | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sherrill | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sherrills Ford | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Sherrodsville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Sherwood | AR | Arkansas Area Code(s): 479 501 870 |
| Sherwood | MD | Maryland Area Code(s): 301 410 |
| Sherwood | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Sherwood | ND | North Dakota Area Code(s): 701 |
| Sherwood | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Sherwood | OR | Oregon Area Code(s): 503 541 |
| Sherwood | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Sherwood | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Shevlin | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Sheyenne | ND | North Dakota Area Code(s): 701 |
| Shickley | NE | Nebraska Area Code(s): 308 402 |
| Shickshinny | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shidler | OK | Oklahoma Area Code(s): 405 580 918 |
| Shields | ND | North Dakota Area Code(s): 701 |
| Shiloh | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Shiloh | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Shiloh | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Shiloh | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Shiloh | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Shiner | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Shingle Springs | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Shinglehouse | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shingleton | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Shingletown | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Shinhopple | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shinnston | WV | West Virginia Area Code(s): 304 |
| Shiocton | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Shipman | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Shipman | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Shippensburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shippenville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shippingport | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shiprock | NM | New Mexico Area Code(s): 505 |
| Shipshewana | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Shirland | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Shirley Basin | WY | Wyoming Area Code(s): 208 307 |
| Shirley Mills | ME | Maine Area Code(s): 207 |
| Shirley | AR | Arkansas Area Code(s): 479 501 870 |
| Shirley | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Shirley | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Shirley | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Shirley | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shirley | WV | West Virginia Area Code(s): 304 |
| Shirleysburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shiro | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Shishmaref | AK | Alaska Area Code(s): 907 |
| Shoals | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Shoals | WV | West Virginia Area Code(s): 304 |
| Shobonier | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Shock | WV | West Virginia Area Code(s): 304 |
| Shoemakersville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shohola | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shokan | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shongaloo | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Shonto | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Shook | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Shoreham | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shoreham | VT | Vermont Area Code(s): 802 |
| Short Creek | WV | West Virginia Area Code(s): 304 |
| Short Hills | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Shorter | AL | Alabama Area Code(s): 205 251 256 334 |
| Shorterville | AL | Alabama Area Code(s): 205 251 256 334 |
| Shortsville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shortt Gap | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Shoshone | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Shoshone | ID | Idaho Area Code(s): 208 |
| Shoshoni | WY | Wyoming Area Code(s): 208 307 |
| Shoup | ID | Idaho Area Code(s): 208 |
| Show Low | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Showell | MD | Maryland Area Code(s): 301 410 |
| Shreve | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Shreveport | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Shrewsbury | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Shrewsbury | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Shrewsbury | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shrub Oak | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shubert | NE | Nebraska Area Code(s): 308 402 |
| Shubuta | MS | Mississippi Area Code(s): 228 601 662 |
| Shullsburg | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Shumway | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Shungnak | AK | Alaska Area Code(s): 907 |
| Shunk | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Shuqualak | MS | Mississippi Area Code(s): 228 601 662 |
| Shushan | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Shutesbury | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Siasconset | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Sibley | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sibley | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sibley | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Sibley | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Sibley | MS | Mississippi Area Code(s): 228 601 662 |
| Sicily Island | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Sicklerville | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Side Lake | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Sidell | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sidman | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Sidnaw | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Sidney Center | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sidney | AR | Arkansas Area Code(s): 479 501 870 |
| Sidney | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sidney | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sidney | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Sidney | KY | Kentucky Area Code(s): 270 502 606 859 |
| Sidney | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Sidney | MT | Montana Area Code(s): 406 |
| Sidney | NE | Nebraska Area Code(s): 308 402 |
| Sidney | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sidney | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Sidney | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sidon | MS | Mississippi Area Code(s): 228 601 662 |
| Sieper | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Sierra Blanca | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sierra City | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sierra Madre | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sierra Vista | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Sierraville | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sigel | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sigel | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Signal Hill | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Signal Mountain | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Sigourney | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sigurd | UT | Utah Area Code(s): 435 801 |
| Sikes | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Sikeston | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Silas | AL | Alabama Area Code(s): 205 251 256 334 |
| Siler City | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Siler | KY | Kentucky Area Code(s): 270 502 606 859 |
| Silerton | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Siletz | OR | Oregon Area Code(s): 503 541 |
| Silex | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Siloam Springs | AR | Arkansas Area Code(s): 479 501 870 |
| Siloam | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Siloam | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Silsbee | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Silt | CO | Colorado Area Code(s): 303 719 970 |
| Siluria | AL | Alabama Area Code(s): 205 251 256 334 |
| Silva | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Silvana | WA | Washington Area Code(s): 206 253 360 425 509 |
| Silver Bay | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Silver Bay | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Silver Beach | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Silver City | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Silver City | MS | Mississippi Area Code(s): 228 601 662 |
| Silver City | NM | New Mexico Area Code(s): 505 |
| Silver City | NV | Nevada Area Code(s): 702 775 |
| Silver Creek | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Silver Creek | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Silver Creek | MS | Mississippi Area Code(s): 228 601 662 |
| Silver Creek | NE | Nebraska Area Code(s): 308 402 |
| Silver Creek | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Silver Creek | WA | Washington Area Code(s): 206 253 360 425 509 |
| Silver Gate | MT | Montana Area Code(s): 406 |
| Silver Grove | KY | Kentucky Area Code(s): 270 502 606 859 |
| Silver Lake | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Silver Lake | KS | Kansas Area Code(s): 316 620 785 913 |
| Silver Lake | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Silver Lake | NH | New Hampshire Area Code(s): 603 |
| Silver Lake | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Silver Lake | OR | Oregon Area Code(s): 503 541 |
| Silver Lake | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Silver Plume | CO | Colorado Area Code(s): 303 719 970 |
| Silver Point | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Silver Spring | MD | Maryland Area Code(s): 301 410 |
| Silver Spring | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Silver Springs | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Silver Springs | NV | Nevada Area Code(s): 702 775 |
| Silver Springs | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Silver Star | MT | Montana Area Code(s): 406 |
| Silver | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Silverado | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Silverdale | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Silverdale | WA | Washington Area Code(s): 206 253 360 425 509 |
| Silverhill | AL | Alabama Area Code(s): 205 251 256 334 |
| Silverlake | WA | Washington Area Code(s): 206 253 360 425 509 |
| Silverpeak | NV | Nevada Area Code(s): 702 775 |
| Silverstreet | SC | South Carolina Area Code(s): 803 843 864 |
| Silverthorne | CO | Colorado Area Code(s): 303 719 970 |
| Silverton | CO | Colorado Area Code(s): 303 719 970 |
| Silverton | ID | Idaho Area Code(s): 208 |
| Silverton | OR | Oregon Area Code(s): 503 541 |
| Silverton | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Silverwood | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Silvis | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Simi Valley | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Simla | CO | Colorado Area Code(s): 303 719 970 |
| Simmesport | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Simms | MT | Montana Area Code(s): 406 |
| Simms | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Simon | WV | West Virginia Area Code(s): 304 |
| Simonton | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Simpson | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Simpson | KS | Kansas Area Code(s): 316 620 785 913 |
| Simpson | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Simpson | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Simpson | WV | West Virginia Area Code(s): 304 |
| Simpsonville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Simpsonville | MD | Maryland Area Code(s): 301 410 |
| Simpsonville | SC | South Carolina Area Code(s): 803 843 864 |
| Sims | AR | Arkansas Area Code(s): 479 501 870 |
| Sims | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sims | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Simsboro | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Simsbury | CT | Connecticut Area Code(s): 203 860 |
| Sinai | SD | South Dakota Area Code(s): 605 |
| Sinajana | GU | Guam Area Code(s): 671 |
| Sinclair | ME | Maine Area Code(s): 207 |
| Sinclair | WY | Wyoming Area Code(s): 208 307 |
| Sinclairville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Singer | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Singers Glen | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Sinking Spring | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Sinks Grove | WV | West Virginia Area Code(s): 304 |
| Sinnamahoning | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Sinsinawa | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Sinton | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sioux Center | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sioux City | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sioux Falls | SD | South Dakota Area Code(s): 605 |
| Sioux Rapids | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sipesville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Sipsey | AL | Alabama Area Code(s): 205 251 256 334 |
| Siren | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Sisseton | SD | South Dakota Area Code(s): 605 |
| Sister Bay | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Sisters | OR | Oregon Area Code(s): 503 541 |
| Sistersville | WV | West Virginia Area Code(s): 304 |
| Sitka | AK | Alaska Area Code(s): 907 |
| Sitka | KY | Kentucky Area Code(s): 270 502 606 859 |
| Six Lakes | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Six Mile Run | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Six Mile | SC | South Carolina Area Code(s): 803 843 864 |
| Sixes | OR | Oregon Area Code(s): 503 541 |
| Sizerock | KY | Kentucky Area Code(s): 270 502 606 859 |
| Skagway | AK | Alaska Area Code(s): 907 |
| Skamokawa | WA | Washington Area Code(s): 206 253 360 425 509 |
| Skandia | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Skaneateles Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Skaneateles | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Skanee | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Skellytown | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Skelton | WV | West Virginia Area Code(s): 304 |
| Skiatook | OK | Oklahoma Area Code(s): 405 580 918 |
| Skidmore | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Skidmore | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Skillman | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Skippack | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Skippers | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Skipperville | AL | Alabama Area Code(s): 205 251 256 334 |
| Skipwith | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Skokie | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Skowhegan | ME | Maine Area Code(s): 207 |
| Skull Valley | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Skwentna | AK | Alaska Area Code(s): 907 |
| Skyforest | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Skykomish | WA | Washington Area Code(s): 206 253 360 425 509 |
| Skyland | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Skytop | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Slab Fork | WV | West Virginia Area Code(s): 304 |
| Slade | KY | Kentucky Area Code(s): 270 502 606 859 |
| Slagle | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Slanesville | WV | West Virginia Area Code(s): 304 |
| Slate Hill | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Slate Run | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Slate Spring | MS | Mississippi Area Code(s): 228 601 662 |
| Slatedale | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Slater | CO | Colorado Area Code(s): 303 719 970 |
| Slater | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Slater | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Slater | SC | South Carolina Area Code(s): 803 843 864 |
| Slatersville | RI | Rhode Island Area Code(s): 401 |
| Slaterville Springs | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Slatington | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Slaton | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Slatyfork | WV | West Virginia Area Code(s): 304 |
| Slaughter | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Slaughters | KY | Kentucky Area Code(s): 270 502 606 859 |
| Slayden | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Slayton | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Sledge | MS | Mississippi Area Code(s): 228 601 662 |
| Sleepy Eye | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Sleetmute | AK | Alaska Area Code(s): 907 |
| Slemp | KY | Kentucky Area Code(s): 270 502 606 859 |
| Slick | OK | Oklahoma Area Code(s): 405 580 918 |
| Slickville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Slidell | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Slidell | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sligo | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Slinger | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Slingerlands | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Slippery Rock | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Sloan | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Sloansville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sloatsburg | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Slocomb | AL | Alabama Area Code(s): 205 251 256 334 |
| Slocum | RI | Rhode Island Area Code(s): 401 |
| Sloughhouse | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Slovan | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smackover | AR | Arkansas Area Code(s): 479 501 870 |
| Small Point | ME | Maine Area Code(s): 207 |
| Smallwood | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Smarr | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Smartt | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Smartville | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Smelterville | ID | Idaho Area Code(s): 208 |
| Smethport | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smicksburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smilax | KY | Kentucky Area Code(s): 270 502 606 859 |
| Smiley | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Smith Center | KS | Kansas Area Code(s): 316 620 785 913 |
| Smith Lake | NM | New Mexico Area Code(s): 505 |
| Smith Mills | KY | Kentucky Area Code(s): 270 502 606 859 |
| Smith River | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Smith | NV | Nevada Area Code(s): 702 775 |
| Smithboro | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Smithboro | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Smithburg | WV | West Virginia Area Code(s): 304 |
| Smithdale | MS | Mississippi Area Code(s): 228 601 662 |
| Smithers | WV | West Virginia Area Code(s): 304 |
| Smithfield | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Smithfield | KY | Kentucky Area Code(s): 270 502 606 859 |
| Smithfield | ME | Maine Area Code(s): 207 |
| Smithfield | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Smithfield | NE | Nebraska Area Code(s): 308 402 |
| Smithfield | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Smithfield | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smithfield | RI | Rhode Island Area Code(s): 401 |
| Smithfield | UT | Utah Area Code(s): 435 801 |
| Smithfield | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Smithfield | WV | West Virginia Area Code(s): 304 |
| Smithland | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Smithland | KY | Kentucky Area Code(s): 270 502 606 859 |
| Smithmill | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smiths Creek | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Smiths Grove | KY | Kentucky Area Code(s): 270 502 606 859 |
| Smiths | AL | Alabama Area Code(s): 205 251 256 334 |
| Smithsburg | MD | Maryland Area Code(s): 301 410 |
| Smithshire | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Smithton | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Smithton | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Smithton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smithtown | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Smithville Flats | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Smithville | AR | Arkansas Area Code(s): 479 501 870 |
| Smithville | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Smithville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Smithville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Smithville | MS | Mississippi Area Code(s): 228 601 662 |
| Smithville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Smithville | OK | Oklahoma Area Code(s): 405 580 918 |
| Smithville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Smithville | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Smithville | WV | West Virginia Area Code(s): 304 |
| Smithwick | SD | South Dakota Area Code(s): 605 |
| Smoaks | SC | South Carolina Area Code(s): 803 843 864 |
| Smock | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smokerun | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smoketown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Smoot | WV | West Virginia Area Code(s): 304 |
| Smoot | WY | Wyoming Area Code(s): 208 307 |
| Smyer | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Smyrna Mills | ME | Maine Area Code(s): 207 |
| Smyrna | DE | Delaware Area Code(s): 302 |
| Smyrna | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Smyrna | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Smyrna | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Smyrna | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Smyrna | SC | South Carolina Area Code(s): 803 843 864 |
| Smyrna | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Sneads Ferry | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Sneads | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Sneedville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Snelling | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Snellville | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Snohomish | WA | Washington Area Code(s): 206 253 360 425 509 |
| Snook | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Snoqualmie Pass | WA | Washington Area Code(s): 206 253 360 425 509 |
| Snoqualmie | WA | Washington Area Code(s): 206 253 360 425 509 |
| Snover | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Snow Camp | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Snow Hill | MD | Maryland Area Code(s): 301 410 |
| Snow Hill | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Snow Lake | AR | Arkansas Area Code(s): 479 501 870 |
| Snow Shoe | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Snow | OK | Oklahoma Area Code(s): 405 580 918 |
| Snowflake | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Snowmass Village | CO | Colorado Area Code(s): 303 719 970 |
| Snowmass | CO | Colorado Area Code(s): 303 719 970 |
| Snowshoe | WV | West Virginia Area Code(s): 304 |
| Snowville | UT | Utah Area Code(s): 435 801 |
| Snyder | CO | Colorado Area Code(s): 303 719 970 |
| Snyder | NE | Nebraska Area Code(s): 308 402 |
| Snyder | OK | Oklahoma Area Code(s): 405 580 918 |
| Snyder | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Snydersburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Snydertown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Soap Lake | WA | Washington Area Code(s): 206 253 360 425 509 |
| Sobieski | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Social Circle | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Society Hill | SC | South Carolina Area Code(s): 803 843 864 |
| Socorro | NM | New Mexico Area Code(s): 505 |
| Sod | WV | West Virginia Area Code(s): 304 |
| Soda Springs | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Soda Springs | ID | Idaho Area Code(s): 208 |
| Soddy Daisy | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Sodus Point | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sodus | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Sodus | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Solana Beach | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Solano | NM | New Mexico Area Code(s): 505 |
| Soldier | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Soldier | KS | Kansas Area Code(s): 316 620 785 913 |
| Soldier | KY | Kentucky Area Code(s): 270 502 606 859 |
| Soldiers Grove | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Soldotna | AK | Alaska Area Code(s): 907 |
| Solebury | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Soledad | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Solen | ND | North Dakota Area Code(s): 701 |
| Solgohachia | AR | Arkansas Area Code(s): 479 501 870 |
| Solo | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Solomon | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Solomon | KS | Kansas Area Code(s): 316 620 785 913 |
| Solomons | MD | Maryland Area Code(s): 301 410 |
| Solon Springs | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Solon | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Solon | ME | Maine Area Code(s): 207 |
| Solon | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Solsberry | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Solsville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Solvang | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Solway | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Somerdale | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Somerdale | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Somers Point | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Somers | CT | Connecticut Area Code(s): 203 860 |
| Somers | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Somers | MT | Montana Area Code(s): 406 |
| Somers | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Somers | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Somerset Center | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Somerset | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Somerset | CO | Colorado Area Code(s): 303 719 970 |
| Somerset | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Somerset | KY | Kentucky Area Code(s): 270 502 606 859 |
| Somerset | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Somerset | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Somerset | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Somerset | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Somerset | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Somerset | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Somerset | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Somerset | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Somersville | CT | Connecticut Area Code(s): 203 860 |
| Somersworth | NH | New Hampshire Area Code(s): 603 |
| Somerton | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Somerville | AL | Alabama Area Code(s): 205 251 256 334 |
| Somerville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Somerville | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Somerville | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Somerville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Somerville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Somerville | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Somerville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Somes Bar | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Somis | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Somonauk | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sondheimer | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Sonoita | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Sonoma | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sonora | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sonora | KY | Kentucky Area Code(s): 270 502 606 859 |
| Sonora | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Sontag | MS | Mississippi Area Code(s): 228 601 662 |
| Sonyea | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sopchoppy | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Soper | OK | Oklahoma Area Code(s): 405 580 918 |
| Soperton | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Sophia | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Sophia | WV | West Virginia Area Code(s): 304 |
| Soquel | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sorento | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Sorrento | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Sorrento | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Sorrento | ME | Maine Area Code(s): 207 |
| Soso | MS | Mississippi Area Code(s): 228 601 662 |
| Soudan | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Soudersburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Souderton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Soulsbyville | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| Sound Beach | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Sour Lake | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| Souris | ND | North Dakota Area Code(s): 701 |
| South Acworth | NH | New Hampshire Area Code(s): 603 |
| South Amana | IA | Iowa Area Code(s): 319 515 563 641 712 |
| South Amboy | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Barre | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Barre | VT | Vermont Area Code(s): 802 |
| South Bay | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| South Beach | OR | Oregon Area Code(s): 503 541 |
| South Beloit | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| South Bend | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| South Bend | NE | Nebraska Area Code(s): 308 402 |
| South Bend | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| South Bend | WA | Washington Area Code(s): 206 253 360 425 509 |
| South Berwick | ME | Maine Area Code(s): 207 |
| South Bethlehem | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Bloomingville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| South Boardman | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| South Boston | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| South Bound Brook | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Branch | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| South Bristol | ME | Maine Area Code(s): 207 |
| South Britain | CT | Connecticut Area Code(s): 203 860 |
| South Burlington | VT | Vermont Area Code(s): 802 |
| South Butler | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Byron | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Cairo | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Canaan | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Carrollton | KY | Kentucky Area Code(s): 270 502 606 859 |
| South Carver | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Casco | ME | Maine Area Code(s): 207 |
| South Charleston | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| South Chatham | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South China | ME | Maine Area Code(s): 207 |
| South Cle Elum | WA | Washington Area Code(s): 206 253 360 425 509 |
| South Colby | WA | Washington Area Code(s): 206 253 360 425 509 |
| South Colton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Dartmouth | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Dayton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Deerfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Dennis | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Dennis | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Dos Palos | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| South Easton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Egremont | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South El Monte | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| South Elgin | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| South English | IA | Iowa Area Code(s): 319 515 563 641 712 |
| South Fallsburg | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Fork | CO | Colorado Area Code(s): 303 719 970 |
| South Fork | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| South Fork | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Freeport | ME | Maine Area Code(s): 207 |
| South Fulton | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| South Gardiner | ME | Maine Area Code(s): 207 |
| South Gate | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| South Gibson | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Glastonbury | CT | Connecticut Area Code(s): 203 860 |
| South Glens Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Grafton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Greenfield | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| South Hackensack | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Hadley | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Hamilton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Harwich | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Haven | KS | Kansas Area Code(s): 316 620 785 913 |
| South Haven | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| South Haven | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| South Heart | ND | North Dakota Area Code(s): 701 |
| South Heights | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Hero | VT | Vermont Area Code(s): 802 |
| South Hill | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| South Holland | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| South Houston | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| South Hutchinson | KS | Kansas Area Code(s): 316 620 785 913 |
| South International Falls | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| South Jamesport | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Jordan | UT | Utah Area Code(s): 435 801 |
| South Kent | CT | Connecticut Area Code(s): 203 860 |
| South Kortright | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Lake Tahoe | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| South Lancaster | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Lebanon | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| South Lee | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Lima | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Londonderry | VT | Vermont Area Code(s): 802 |
| South Lyme | CT | Connecticut Area Code(s): 203 860 |
| South Lyon | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| South Milford | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| South Mills | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| South Milwaukee | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| South Montrose | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Mountain | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Naknek | AK | Alaska Area Code(s): 907 |
| South New Berlin | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Newbury | NH | New Hampshire Area Code(s): 603 |
| South Newfane | VT | Vermont Area Code(s): 802 |
| South Orange | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Orleans | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| South Otselic | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Ozone Park | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Padre Island | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| South Paris | ME | Maine Area Code(s): 207 |
| South Park | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| South Pasadena | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| South Pekin | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| South Pittsburg | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| South Plainfield | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Plains | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| South Plymouth | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South Point | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| South Pomfret | VT | Vermont Area Code(s): 802 |
| South Portland | ME | Maine Area Code(s): 207 |
| South Portsmouth | KY | Kentucky Area Code(s): 270 502 606 859 |
| South Prairie | WA | Washington Area Code(s): 206 253 360 425 509 |
| South Range | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| South Range | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| South Richmond Hill | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| South River | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| South Rockwood | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| South Roxana | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| South Royalton | VT | Vermont Area Code(s): 802 |
| South Ryegate | VT | Vermont Area Code(s): 802 |
| South Saint Paul | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| South Salem | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |