| City | State | Area Code(s) |
| Greenbelt | MD | Maryland Area Code(s): 301 410 |
| Greenbrae | 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 |
| Greenbrier | AR | Arkansas Area Code(s): 479 501 870 |
| Greenbrier | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Greenbush | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Greenbush | ME | Maine Area Code(s): 207 |
| Greenbush | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Greenbush | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Greenbush | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Greenbush | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Greencastle | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greencastle | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Greencreek | ID | Idaho Area Code(s): 208 |
| Greendale | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Greendell | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Greene | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Greene | ME | Maine Area Code(s): 207 |
| Greene | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greene | RI | Rhode Island Area Code(s): 401 |
| Greeneville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Greenfield Center | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenfield Park | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenfield | 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 |
| Greenfield | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Greenfield | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Greenfield | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greenfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Greenfield | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Greenfield | NH | New Hampshire Area Code(s): 603 |
| Greenfield | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Greenfield | OK | Oklahoma Area Code(s): 405 580 918 |
| Greenfield | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Greenford | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Greenhurst | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenland | AR | Arkansas Area Code(s): 479 501 870 |
| Greenland | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Greenland | NH | New Hampshire Area Code(s): 603 |
| Greenlawn | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenleaf | ID | Idaho Area Code(s): 208 |
| Greenleaf | KS | Kansas Area Code(s): 316 620 785 913 |
| Greenleaf | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Greenock | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Greenport | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greens Farms | CT | Connecticut Area Code(s): 203 860 |
| Greens Fork | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greensboro Bend | VT | Vermont Area Code(s): 802 |
| Greensboro | AL | Alabama Area Code(s): 205 251 256 334 |
| Greensboro | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Greensboro | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Greensboro | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greensboro | MD | Maryland Area Code(s): 301 410 |
| Greensboro | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Greensboro | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Greensboro | VT | Vermont Area Code(s): 802 |
| Greensburg | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greensburg | KS | Kansas Area Code(s): 316 620 785 913 |
| Greensburg | KY | Kentucky Area Code(s): 270 502 606 859 |
| Greensburg | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Greensburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Greentop | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Greentown | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greentown | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Greentown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Greenup | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Greenup | KY | Kentucky Area Code(s): 270 502 606 859 |
| Greenvale | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenview | 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 |
| Greenview | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Greenville Junction | ME | Maine Area Code(s): 207 |
| Greenville | AL | Alabama Area Code(s): 205 251 256 334 |
| Greenville | 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 |
| Greenville | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Greenville | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Greenville | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Greenville | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Greenville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greenville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Greenville | ME | Maine Area Code(s): 207 |
| Greenville | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Greenville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Greenville | MS | Mississippi Area Code(s): 228 601 662 |
| Greenville | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Greenville | NH | New Hampshire Area Code(s): 603 |
| Greenville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Greenville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Greenville | RI | Rhode Island Area Code(s): 401 |
| Greenville | SC | South Carolina Area Code(s): 803 843 864 |
| Greenville | 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 |
| Greenville | UT | Utah Area Code(s): 435 801 |
| Greenville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Greenville | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Greenville | WV | West Virginia Area Code(s): 304 |
| Greenwald | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Greenway | AR | Arkansas Area Code(s): 479 501 870 |
| Greenway | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Greenwell Springs | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Greenwich | CT | Connecticut Area Code(s): 203 860 |
| Greenwich | KS | Kansas Area Code(s): 316 620 785 913 |
| Greenwich | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Greenwich | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenwich | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Greenwich | UT | Utah Area Code(s): 435 801 |
| Greenwood Lake | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenwood Springs | MS | Mississippi Area Code(s): 228 601 662 |
| Greenwood | AR | Arkansas Area Code(s): 479 501 870 |
| Greenwood | 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 |
| Greenwood | DE | Delaware Area Code(s): 302 |
| Greenwood | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Greenwood | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Greenwood | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Greenwood | ME | Maine Area Code(s): 207 |
| Greenwood | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Greenwood | MS | Mississippi Area Code(s): 228 601 662 |
| Greenwood | NE | Nebraska Area Code(s): 308 402 |
| Greenwood | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Greenwood | SC | South Carolina Area Code(s): 803 843 864 |
| Greenwood | 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 |
| Greenwood | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Greenwood | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Greer | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Greer | SC | South Carolina Area Code(s): 803 843 864 |
| Gregory | AR | Arkansas Area Code(s): 479 501 870 |
| Gregory | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Gregory | SD | South Dakota Area Code(s): 605 |
| Gregory | 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 |
| Greig | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Grelton | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Grenada | 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 |
| Grenada | MS | Mississippi Area Code(s): 228 601 662 |
| Grenloch | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Grenola | KS | Kansas Area Code(s): 316 620 785 913 |
| Grenora | ND | North Dakota Area Code(s): 701 |
| Grenville | NM | New Mexico Area Code(s): 505 |
| Grenville | SD | South Dakota Area Code(s): 605 |
| Gresham | NE | Nebraska Area Code(s): 308 402 |
| Gresham | OR | Oregon Area Code(s): 503 541 |
| Gresham | SC | South Carolina Area Code(s): 803 843 864 |
| Gresham | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Grethel | KY | Kentucky Area Code(s): 270 502 606 859 |
| Gretna | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Gretna | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Gretna | NE | Nebraska Area Code(s): 308 402 |
| Gretna | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Grey Eagle | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Greybull | WY | Wyoming Area Code(s): 208 307 |
| Greycliff | MT | Montana Area Code(s): 406 |
| Gridley | 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 |
| Gridley | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Gridley | KS | Kansas Area Code(s): 316 620 785 913 |
| Griffin | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Griffin | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Griffith | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Griffithsville | WV | West Virginia Area Code(s): 304 |
| Griffithville | AR | Arkansas Area Code(s): 479 501 870 |
| Grifton | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Griggsville | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Grimes | 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 |
| Grimes | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Grimesland | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Grimms Landing | WV | West Virginia Area Code(s): 304 |
| Grimsley | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Grimstead | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Grindstone | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Grinnell | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Grinnell | KS | Kansas Area Code(s): 316 620 785 913 |
| Grissom Arb | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Griswold | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Grizzly Flats | 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 |
| Groesbeck | 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 |
| Groom | 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 |
| Grosse Ile | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Grosse Pointe | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Grosse Tete | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Grosvenor Dale | CT | Connecticut Area Code(s): 203 860 |
| Groton | CT | Connecticut Area Code(s): 203 860 |
| Groton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Groton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Groton | SD | South Dakota Area Code(s): 605 |
| Groton | VT | Vermont Area Code(s): 802 |
| Grottoes | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Grouse Creek | UT | Utah Area Code(s): 435 801 |
| Grove City | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Grove City | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Grove City | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Grove Hill | AL | Alabama Area Code(s): 205 251 256 334 |
| Grove | OK | Oklahoma Area Code(s): 405 580 918 |
| Groveland | 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 |
| Groveland | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Groveland | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Groveland | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Groveland | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Groveoak | AL | Alabama Area Code(s): 205 251 256 334 |
| Groveport | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Grover 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 |
| Grover Hill | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Grover | CO | Colorado Area Code(s): 303 719 970 |
| Grover | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Grover | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Grover | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Grover | SC | South Carolina Area Code(s): 803 843 864 |
| Grover | WY | Wyoming Area Code(s): 208 307 |
| Grovertown | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Groves | 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 |
| Grovespring | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Groveton | NH | New Hampshire Area Code(s): 603 |
| Groveton | 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 |
| Grovetown | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Grubbs | AR | Arkansas Area Code(s): 479 501 870 |
| Grubville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Gruetli Laager | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Grulla | 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 |
| Grundy Center | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Grundy | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Gruver | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Gruver | 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 |
| Grygla | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Guadalupe | 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 |
| Guadalupita | NM | New Mexico Area Code(s): 505 |
| Gualala | 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 |
| Guanica | PR | Puerto Rico Area Code(s): 787 |
| Guasti | 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 |
| Guatay | 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 |
| Guayama | PR | Puerto Rico Area Code(s): 787 |
| Guayanilla | PR | Puerto Rico Area Code(s): 787 |
| Guaynabo | PR | Puerto Rico Area Code(s): 787 |
| Guerneville | 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 |
| Guernsey | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Guernsey | WY | Wyoming Area Code(s): 208 307 |
| Guerra | 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 |
| Gueydan | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Guffey | CO | Colorado Area Code(s): 303 719 970 |
| Guide Rock | NE | Nebraska Area Code(s): 308 402 |
| Guild | NH | New Hampshire Area Code(s): 603 |
| Guild | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Guilderland Center | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Guilderland | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Guildhall | VT | Vermont Area Code(s): 802 |
| Guilford | CT | Connecticut Area Code(s): 203 860 |
| Guilford | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Guilford | ME | Maine Area Code(s): 207 |
| Guilford | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Guilford | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Guin | AL | Alabama Area Code(s): 205 251 256 334 |
| Guinda | 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 |
| Guion | AR | Arkansas Area Code(s): 479 501 870 |
| Gulf Breeze | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Gulf Hammock | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Gulf Shores | AL | Alabama Area Code(s): 205 251 256 334 |
| Gulf | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Gulfport | MS | Mississippi Area Code(s): 228 601 662 |
| Gulliver | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Gully | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Gulston | KY | Kentucky Area Code(s): 270 502 606 859 |
| Gum Spring | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Gunlock | KY | Kentucky Area Code(s): 270 502 606 859 |
| Gunlock | UT | Utah Area Code(s): 435 801 |
| Gunnison | CO | Colorado Area Code(s): 303 719 970 |
| Gunnison | MS | Mississippi Area Code(s): 228 601 662 |
| Gunnison | UT | Utah Area Code(s): 435 801 |
| Gunpowder | MD | Maryland Area Code(s): 301 410 |
| Gunter | 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 |
| Guntersville | AL | Alabama Area Code(s): 205 251 256 334 |
| Guntown | MS | Mississippi Area Code(s): 228 601 662 |
| Gurabo | PR | Puerto Rico Area Code(s): 787 |
| Gurdon | AR | Arkansas Area Code(s): 479 501 870 |
| Gurley | AL | Alabama Area Code(s): 205 251 256 334 |
| Gurley | NE | Nebraska Area Code(s): 308 402 |
| Gurnee | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Gusher | UT | Utah Area Code(s): 435 801 |
| Gustavus | AK | Alaska Area Code(s): 907 |
| Gustine | 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 |
| Gustine | 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 |
| Guston | KY | Kentucky Area Code(s): 270 502 606 859 |
| Guthrie Center | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Guthrie | KY | Kentucky Area Code(s): 270 502 606 859 |
| Guthrie | OK | Oklahoma Area Code(s): 405 580 918 |
| Guthrie | 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 |
| Guttenberg | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Guy | AR | Arkansas Area Code(s): 479 501 870 |
| Guy | 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 |
| Guymon | OK | Oklahoma Area Code(s): 405 580 918 |
| Guys Mills | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Guys | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Guysville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Guyton | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Gwinn | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Gwinner | ND | North Dakota Area Code(s): 701 |
| Gwynedd Valley | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Gwynedd | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Gwynn Oak | MD | Maryland Area Code(s): 301 410 |
| Gwynn | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Gwynneville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Gypsum | CO | Colorado Area Code(s): 303 719 970 |
| Gypsum | KS | Kansas Area Code(s): 316 620 785 913 |
| Gypsum | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Gypsy | WV | West Virginia Area Code(s): 304 |
| Hachita | NM | New Mexico Area Code(s): 505 |
| Hacienda Heights | 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 |
| Hackberry | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Hackberry | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hackensack | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hackensack | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hacker Valley | WV | West Virginia Area Code(s): 304 |
| Hackett | AR | Arkansas Area Code(s): 479 501 870 |
| Hackettstown | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hackleburg | AL | Alabama Area Code(s): 205 251 256 334 |
| Hacksneck | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hadar | NE | Nebraska Area Code(s): 308 402 |
| Haddam | CT | Connecticut Area Code(s): 203 860 |
| Haddam | KS | Kansas Area Code(s): 316 620 785 913 |
| Haddock | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Haddon Heights | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Haddonfield | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hadensville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hadley | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hadley | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hadley | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hadley | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hadley | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hadlyme | CT | Connecticut Area Code(s): 203 860 |
| Hagaman | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hagan | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hagar Shores | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hagarstown | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hagarville | AR | Arkansas Area Code(s): 479 501 870 |
| Hagatna | GU | Guam Area Code(s): 671 |
| Hager City | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hagerhill | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hagerman | ID | Idaho Area Code(s): 208 |
| Hagerman | NM | New Mexico Area Code(s): 505 |
| Hagerstown | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hagerstown | MD | Maryland Area Code(s): 301 410 |
| Hague | ND | North Dakota Area Code(s): 701 |
| Hague | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hague | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hahira | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hahnville | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Haigler | NE | Nebraska Area Code(s): 308 402 |
| Haiku | HI | Hawaii Area Code(s): 808 |
| Hailesboro | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hailey | ID | Idaho Area Code(s): 208 |
| Haileyville | OK | Oklahoma Area Code(s): 405 580 918 |
| Haines City | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Haines Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Haines | AK | Alaska Area Code(s): 907 |
| Haines | OR | Oregon Area Code(s): 503 541 |
| Hainesport | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hakalau | HI | Hawaii Area Code(s): 808 |
| Halbur | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Halcottsville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Haldeman | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hale Center | 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 |
| Hale | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hale | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Haledon | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Haleiwa | HI | Hawaii Area Code(s): 808 |
| Hales Corners | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Halethorpe | MD | Maryland Area Code(s): 301 410 |
| Haleyville | AL | Alabama Area Code(s): 205 251 256 334 |
| Half Moon Bay | 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 |
| Half Way | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Halfway | KY | Kentucky Area Code(s): 270 502 606 859 |
| Halfway | OR | Oregon Area Code(s): 503 541 |
| Halifax | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Halifax | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Halifax | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Halifax | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hall Summit | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hall | MT | Montana Area Code(s): 406 |
| Hall | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hallam | NE | Nebraska Area Code(s): 308 402 |
| Hallandale | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Halleck | NV | Nevada Area Code(s): 702 775 |
| Hallett | OK | Oklahoma Area Code(s): 405 580 918 |
| Hallettsville | 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 |
| Halliday | ND | North Dakota Area Code(s): 701 |
| Hallie | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hallieford | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hallock | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hallowell | ME | Maine Area Code(s): 207 |
| Halls | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hallsboro | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hallstead | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hallsville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hallsville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hallsville | 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 |
| Halltown | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Halltown | WV | West Virginia Area Code(s): 304 |
| Hallwood | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Halma | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Halsey | NE | Nebraska Area Code(s): 308 402 |
| Halsey | OR | Oregon Area Code(s): 503 541 |
| Halstad | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Halstead | KS | Kansas Area Code(s): 316 620 785 913 |
| Haltom City | 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 |
| Hamberg | ND | North Dakota Area Code(s): 701 |
| Hambleton | WV | West Virginia Area Code(s): 304 |
| Hamburg | AR | Arkansas Area Code(s): 479 501 870 |
| Hamburg | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hamburg | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hamburg | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hamburg | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hamburg | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hamburg | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hamburg | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hamburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hamden | CT | Connecticut Area Code(s): 203 860 |
| Hamden | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hamden | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hamel | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hamel | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hamer | ID | Idaho Area Code(s): 208 |
| Hamer | SC | South Carolina Area Code(s): 803 843 864 |
| Hamersville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hamill | SD | South Dakota Area Code(s): 605 |
| Hamilton 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 |
| Hamilton | AL | Alabama Area Code(s): 205 251 256 334 |
| Hamilton | CO | Colorado Area Code(s): 303 719 970 |
| Hamilton | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hamilton | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hamilton | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hamilton | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hamilton | KS | Kansas Area Code(s): 316 620 785 913 |
| Hamilton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hamilton | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hamilton | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hamilton | MS | Mississippi Area Code(s): 228 601 662 |
| Hamilton | MT | Montana Area Code(s): 406 |
| Hamilton | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hamilton | ND | North Dakota Area Code(s): 701 |
| Hamilton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hamilton | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hamilton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hamilton | 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 |
| Hamilton | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hamilton | WA | Washington Area Code(s): 206 253 360 425 509 |
| Hamler | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hamlet | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hamlet | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hamletsburg | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hamlin | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hamlin | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hamlin | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hamlin | 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 |
| Hamlin | WV | West Virginia Area Code(s): 304 |
| Hammett | ID | Idaho Area Code(s): 208 |
| Hammon | OK | Oklahoma Area Code(s): 405 580 918 |
| Hammond | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hammond | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hammond | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hammond | MT | Montana Area Code(s): 406 |
| Hammond | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hammond | OR | Oregon Area Code(s): 503 541 |
| Hammond | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hammondsport | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hammondsville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hammonton | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hampden Sydney | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hampden | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hampden | ME | Maine Area Code(s): 207 |
| Hampden | ND | North Dakota Area Code(s): 701 |
| Hampden | WV | West Virginia Area Code(s): 304 |
| Hampshire | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hampshire | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hampstead | MD | Maryland Area Code(s): 301 410 |
| Hampstead | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hampstead | NH | New Hampshire Area Code(s): 603 |
| Hampton Bays | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hampton Falls | NH | New Hampshire Area Code(s): 603 |
| Hampton | AR | Arkansas Area Code(s): 479 501 870 |
| Hampton | CT | Connecticut Area Code(s): 203 860 |
| Hampton | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Hampton | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hampton | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hampton | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hampton | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hampton | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hampton | NE | Nebraska Area Code(s): 308 402 |
| Hampton | NH | New Hampshire Area Code(s): 603 |
| Hampton | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hampton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hampton | SC | South Carolina Area Code(s): 803 843 864 |
| Hampton | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hampton | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hamptonville | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hamshire | 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 |
| Hamtramck | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hana | HI | Hawaii Area Code(s): 808 |
| Hanalei | HI | Hawaii Area Code(s): 808 |
| Hanamaulu | HI | Hawaii Area Code(s): 808 |
| Hanapepe | HI | Hawaii Area Code(s): 808 |
| Hanceville | AL | Alabama Area Code(s): 205 251 256 334 |
| Hancock | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hancock | MD | Maryland Area Code(s): 301 410 |
| Hancock | ME | Maine Area Code(s): 207 |
| Hancock | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hancock | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hancock | NH | New Hampshire Area Code(s): 603 |
| Hancock | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hancock | VT | Vermont Area Code(s): 802 |
| Hancock | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hancocks Bridge | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Handley | WV | West Virginia Area Code(s): 304 |
| Hanford | 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 |
| Hankamer | 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 |
| Hankins | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hankinson | ND | North Dakota Area Code(s): 701 |
| Hanksville | UT | Utah Area Code(s): 435 801 |
| Hanley Falls | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hanlontown | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hanna City | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hanna | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hanna | OK | Oklahoma Area Code(s): 405 580 918 |
| Hanna | UT | Utah Area Code(s): 435 801 |
| Hanna | WY | Wyoming Area Code(s): 208 307 |
| Hannacroix | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hannaford | ND | North Dakota Area Code(s): 701 |
| Hannah | ND | North Dakota Area Code(s): 701 |
| Hannastown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hannawa Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hannibal | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hannibal | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hannibal | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hannibal | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hanover Park | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hanover | CT | Connecticut Area Code(s): 203 860 |
| Hanover | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hanover | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hanover | KS | Kansas Area Code(s): 316 620 785 913 |
| Hanover | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hanover | MD | Maryland Area Code(s): 301 410 |
| Hanover | ME | Maine Area Code(s): 207 |
| Hanover | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hanover | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hanover | NH | New Hampshire Area Code(s): 603 |
| Hanover | NM | New Mexico Area Code(s): 505 |
| Hanover | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hanover | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hanover | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hanover | WV | West Virginia Area Code(s): 304 |
| Hanoverton | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hansboro | ND | North Dakota Area Code(s): 701 |
| Hanscom Afb | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hansen | ID | Idaho Area Code(s): 208 |
| Hansford | WV | West Virginia Area Code(s): 304 |
| Hanska | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hanson | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hanson | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hanston | KS | Kansas Area Code(s): 316 620 785 913 |
| Hansville | WA | Washington Area Code(s): 206 253 360 425 509 |
| Happy Camp | 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 |
| Happy Jack | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Happy | KY | Kentucky Area Code(s): 270 502 606 859 |
| Happy | 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 |
| Haralson | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Harbert | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harbeson | DE | Delaware Area Code(s): 302 |
| Harbinger | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harbor Beach | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harbor 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 |
| Harbor Springs | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harbor View | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harborcreek | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harborside | ME | Maine Area Code(s): 207 |
| Harborton | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Harcourt | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hardaway | AL | Alabama Area Code(s): 205 251 256 334 |
| Hardburly | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hardeeville | SC | South Carolina Area Code(s): 803 843 864 |
| Hardenville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hardesty | OK | Oklahoma Area Code(s): 405 580 918 |
| Hardin | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hardin | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hardin | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hardin | MT | Montana Area Code(s): 406 |
| Hardin | 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 |
| Hardinsburg | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hardinsburg | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hardtner | KS | Kansas Area Code(s): 316 620 785 913 |
| Hardwick | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hardwick | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hardwick | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hardwick | VT | Vermont Area Code(s): 802 |
| Hardy | AR | Arkansas Area Code(s): 479 501 870 |
| Hardy | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hardy | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hardy | NE | Nebraska Area Code(s): 308 402 |
| Hardy | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hardyville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hardyville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Harford | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harford | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hargill | 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 |
| Harker Heights | 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 |
| Harkers Island | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harlan | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Harlan | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Harlan | KY | Kentucky Area Code(s): 270 502 606 859 |
| Harleigh | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harlem Springs | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harlem | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Harlem | MT | Montana Area Code(s): 406 |
| Harleton | 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 |
| Harleysville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harleyville | SC | South Carolina Area Code(s): 803 843 864 |
| Harlingen | 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 |
| Harlowton | MT | Montana Area Code(s): 406 |
| Harman | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Harman | WV | West Virginia Area Code(s): 304 |
| Harmans | MD | Maryland Area Code(s): 301 410 |
| Harmon | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harmon | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Harmonsburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harmony | 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 |
| Harmony | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Harmony | ME | Maine Area Code(s): 207 |
| Harmony | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Harmony | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harmony | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harmony | RI | Rhode Island Area Code(s): 401 |
| Harned | KY | Kentucky Area Code(s): 270 502 606 859 |
| Harold | KY | Kentucky Area Code(s): 270 502 606 859 |
| Harper Woods | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harper | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Harper | KS | Kansas Area Code(s): 316 620 785 913 |
| Harper | OR | Oregon Area Code(s): 503 541 |
| Harper | 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 |
| Harper | WV | West Virginia Area Code(s): 304 |
| Harpers Ferry | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Harpers Ferry | WV | West Virginia Area Code(s): 304 |
| Harpersfield | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harpersville | AL | Alabama Area Code(s): 205 251 256 334 |
| Harperville | MS | Mississippi Area Code(s): 228 601 662 |
| Harpster | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harpswell | ME | Maine Area Code(s): 207 |
| Harpursville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harrah | OK | Oklahoma Area Code(s): 405 580 918 |
| Harrah | WA | Washington Area Code(s): 206 253 360 425 509 |
| Harrell | AR | Arkansas Area Code(s): 479 501 870 |
| Harrells | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harrellsville | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harriet | AR | Arkansas Area Code(s): 479 501 870 |
| Harrietta | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harriman | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harriman | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Harrington Park | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Harrington | DE | Delaware Area Code(s): 302 |
| Harrington | ME | Maine Area Code(s): 207 |
| Harrington | WA | Washington Area Code(s): 206 253 360 425 509 |
| Harris | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Harris | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harris | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Harris | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Harris | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harris | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harrisburg | AR | Arkansas Area Code(s): 479 501 870 |
| Harrisburg | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harrisburg | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Harrisburg | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Harrisburg | NE | Nebraska Area Code(s): 308 402 |
| Harrisburg | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harrisburg | OR | Oregon Area Code(s): 503 541 |
| Harrisburg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harrisburg | SD | South Dakota Area Code(s): 605 |
| Harrison City | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harrison Township | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harrison Valley | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harrison | AR | Arkansas Area Code(s): 479 501 870 |
| Harrison | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Harrison | ID | Idaho Area Code(s): 208 |
| Harrison | ME | Maine Area Code(s): 207 |
| Harrison | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harrison | MT | Montana Area Code(s): 406 |
| Harrison | NE | Nebraska Area Code(s): 308 402 |
| Harrison | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Harrison | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harrison | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harrison | SD | South Dakota Area Code(s): 605 |
| Harrison | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Harrisonburg | LA | Louisiana Area Code(s): 225 318 337 504 985 |