| City | State | Area Code(s) |
| Harrisonburg | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Harrisonville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Harrisonville | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Harrisonville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harriston | MS | Mississippi Area Code(s): 228 601 662 |
| Harristown | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harrisville | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harrisville | MS | Mississippi Area Code(s): 228 601 662 |
| Harrisville | NH | New Hampshire Area Code(s): 603 |
| Harrisville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Harrisville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harrisville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harrisville | RI | Rhode Island Area Code(s): 401 |
| Harrisville | WV | West Virginia Area Code(s): 304 |
| Harrod | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harrods Creek | KY | Kentucky Area Code(s): 270 502 606 859 |
| Harrodsburg | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Harrodsburg | KY | Kentucky Area Code(s): 270 502 606 859 |
| Harrogate | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Harrold | SD | South Dakota Area Code(s): 605 |
| Harrold | 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 |
| Harsens Island | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Harshaw | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hart | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hart | 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 |
| Hartfield | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hartford City | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hartford | AL | Alabama Area Code(s): 205 251 256 334 |
| Hartford | AR | Arkansas Area Code(s): 479 501 870 |
| Hartford | CT | Connecticut Area Code(s): 203 860 |
| Hartford | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hartford | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hartford | KS | Kansas Area Code(s): 316 620 785 913 |
| Hartford | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hartford | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hartford | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hartford | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hartford | SD | South Dakota Area Code(s): 605 |
| Hartford | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hartford | VT | Vermont Area Code(s): 802 |
| Hartford | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hartford | WV | West Virginia Area Code(s): 304 |
| Hartington | NE | Nebraska Area Code(s): 308 402 |
| Hartland Four Corners | VT | Vermont Area Code(s): 802 |
| Hartland | ME | Maine Area Code(s): 207 |
| Hartland | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hartland | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hartland | VT | Vermont Area Code(s): 802 |
| Hartland | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hartleton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hartley | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hartley | 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 |
| Hartline | WA | Washington Area Code(s): 206 253 360 425 509 |
| Hartly | DE | Delaware Area Code(s): 302 |
| Hartman | AR | Arkansas Area Code(s): 479 501 870 |
| Hartman | CO | Colorado Area Code(s): 303 719 970 |
| Harts | WV | West Virginia Area Code(s): 304 |
| Hartsburg | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hartsburg | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hartsdale | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hartsel | CO | Colorado Area Code(s): 303 719 970 |
| Hartselle | AL | Alabama Area Code(s): 205 251 256 334 |
| Hartsfield | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hartshorn | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hartshorne | OK | Oklahoma Area Code(s): 405 580 918 |
| Hartstown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hartsville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hartsville | SC | South Carolina Area Code(s): 803 843 864 |
| Hartsville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hartville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hartville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hartville | WY | Wyoming Area Code(s): 208 307 |
| Hartwell | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hartwick | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hartwick | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hartwood | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Harvard | ID | Idaho Area Code(s): 208 |
| Harvard | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harvard | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Harvard | NE | Nebraska Area Code(s): 308 402 |
| Harvel | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harvest | AL | Alabama Area Code(s): 205 251 256 334 |
| Harvey | AR | Arkansas Area Code(s): 479 501 870 |
| Harvey | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Harvey | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harvey | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Harvey | ND | North Dakota Area Code(s): 701 |
| Harveys Lake | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harveysburg | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Harveyville | KS | Kansas Area Code(s): 316 620 785 913 |
| Harviell | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Harwich Port | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Harwich | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Harwick | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Harwinton | CT | Connecticut Area Code(s): 203 860 |
| Harwood Heights | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Harwood | MD | Maryland Area Code(s): 301 410 |
| Harwood | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Harwood | ND | North Dakota Area Code(s): 701 |
| Harwood | 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 |
| Hasbrouck Heights | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Haskell | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Haskell | OK | Oklahoma Area Code(s): 405 580 918 |
| Haskell | 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 |
| Haskins | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Haslet | 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 |
| Haslett | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hassell | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hastings On Hudson | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hastings | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Hastings | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hastings | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hastings | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hastings | NE | Nebraska Area Code(s): 308 402 |
| Hastings | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hastings | OK | Oklahoma Area Code(s): 405 580 918 |
| Hastings | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hasty | AR | Arkansas Area Code(s): 479 501 870 |
| Hasty | CO | Colorado Area Code(s): 303 719 970 |
| Haswell | CO | Colorado Area Code(s): 303 719 970 |
| Hat Creek | 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 |
| Hatboro | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hatch | NM | New Mexico Area Code(s): 505 |
| Hatch | UT | Utah Area Code(s): 435 801 |
| Hatchechubbee | AL | Alabama Area Code(s): 205 251 256 334 |
| Hatfield | AR | Arkansas Area Code(s): 479 501 870 |
| Hatfield | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hatfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hatfield | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hatfield | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hathaway Pines | 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 |
| Hathaway | MT | Montana Area Code(s): 406 |
| Hathorne | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hatillo | PR | Puerto Rico Area Code(s): 787 |
| Hatley | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hatteras | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hattiesburg | MS | Mississippi Area Code(s): 228 601 662 |
| Hattieville | AR | Arkansas Area Code(s): 479 501 870 |
| Hatton | ND | North Dakota Area Code(s): 701 |
| Hatton | WA | Washington Area Code(s): 206 253 360 425 509 |
| Haubstadt | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Haugan | MT | Montana Area Code(s): 406 |
| Haugen | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Haughton | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hauppauge | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hauula | HI | Hawaii Area Code(s): 808 |
| Havaco | WV | West Virginia Area Code(s): 304 |
| Havana | AR | Arkansas Area Code(s): 479 501 870 |
| Havana | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Havana | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Havana | KS | Kansas Area Code(s): 316 620 785 913 |
| Havana | ND | North Dakota Area Code(s): 701 |
| Havelock | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Havelock | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Haven | KS | Kansas Area Code(s): 316 620 785 913 |
| Havensville | KS | Kansas Area Code(s): 316 620 785 913 |
| Haverford | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Haverhill | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Haverhill | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Haverhill | NH | New Hampshire Area Code(s): 603 |
| Haverhill | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Haverstraw | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Havertown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Haviland | KS | Kansas Area Code(s): 316 620 785 913 |
| Haviland | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Havre De Grace | MD | Maryland Area Code(s): 301 410 |
| Havre | MT | Montana Area Code(s): 406 |
| Haw River | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hawaii National Park | HI | Hawaii Area Code(s): 808 |
| Hawaiian Gardens | 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 |
| Hawarden | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hawesville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hawi | HI | Hawaii Area Code(s): 808 |
| Hawk Point | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hawk Run | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hawk Springs | WY | Wyoming Area Code(s): 208 307 |
| Hawkeye | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hawkins | 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 |
| Hawkins | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hawkinsville | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hawks | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hawley | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hawley | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hawley | 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 |
| Hawleyville | CT | Connecticut Area Code(s): 203 860 |
| Haworth | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Haworth | OK | Oklahoma Area Code(s): 405 580 918 |
| Hawthorn | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hawthorne | 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 |
| Hawthorne | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Hawthorne | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hawthorne | NV | Nevada Area Code(s): 702 775 |
| Hawthorne | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hawthorne | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Haxtun | CO | Colorado Area Code(s): 303 719 970 |
| Hay Springs | NE | Nebraska Area Code(s): 308 402 |
| Hay | WA | Washington Area Code(s): 206 253 360 425 509 |
| Hayden | AL | Alabama Area Code(s): 205 251 256 334 |
| Hayden | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Hayden | CO | Colorado Area Code(s): 303 719 970 |
| Hayden | ID | Idaho Area Code(s): 208 |
| Hayden | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Haydenville | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Haydenville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hayes Center | NE | Nebraska Area Code(s): 308 402 |
| Hayes | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hayes | SD | South Dakota Area Code(s): 605 |
| Hayes | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hayesville | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hayesville | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hayesville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hayfield | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hayfork | 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 |
| Haymarket | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Haynes | AR | Arkansas Area Code(s): 479 501 870 |
| Haynesville | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Haynesville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hayneville | AL | Alabama Area Code(s): 205 251 256 334 |
| Hays | KS | Kansas Area Code(s): 316 620 785 913 |
| Hays | MT | Montana Area Code(s): 406 |
| Hays | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Haysi | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Haysville | KS | Kansas Area Code(s): 316 620 785 913 |
| Hayti | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hayti | SD | South Dakota Area Code(s): 605 |
| Hayward | 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 |
| Hayward | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hayward | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Haywood | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Haywood | WV | West Virginia Area Code(s): 304 |
| Hazard | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hazard | NE | Nebraska Area Code(s): 308 402 |
| Hazel Crest | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hazel Green | AL | Alabama Area Code(s): 205 251 256 334 |
| Hazel Green | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hazel Green | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hazel Hurst | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hazel Park | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hazel | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hazel | SD | South Dakota Area Code(s): 605 |
| Hazelhurst | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hazelton | ID | Idaho Area Code(s): 208 |
| Hazelton | KS | Kansas Area Code(s): 316 620 785 913 |
| Hazelton | ND | North Dakota Area Code(s): 701 |
| Hazelton | WV | West Virginia Area Code(s): 304 |
| Hazelwood | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hazelwood | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hazen | AR | Arkansas Area Code(s): 479 501 870 |
| Hazen | ND | North Dakota Area Code(s): 701 |
| Hazlehurst | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hazlehurst | MS | Mississippi Area Code(s): 228 601 662 |
| Hazlet | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hazleton | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hazleton | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hazleton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Head Waters | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Headland | AL | Alabama Area Code(s): 205 251 256 334 |
| Headrick | OK | Oklahoma Area Code(s): 405 580 918 |
| Heafford Junction | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Healdsburg | 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 |
| Healdton | OK | Oklahoma Area Code(s): 405 580 918 |
| Healy | AK | Alaska Area Code(s): 907 |
| Healy | KS | Kansas Area Code(s): 316 620 785 913 |
| Hearne | 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 |
| Heart Butte | MT | Montana Area Code(s): 406 |
| Heartwell | NE | Nebraska Area Code(s): 308 402 |
| Heaters | WV | West Virginia Area Code(s): 304 |
| Heath Springs | SC | South Carolina Area Code(s): 803 843 864 |
| Heath | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Heath | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Heathsville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Heavener | OK | Oklahoma Area Code(s): 405 580 918 |
| Hebbronville | 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 |
| Heber City | UT | Utah Area Code(s): 435 801 |
| Heber Springs | AR | Arkansas Area Code(s): 479 501 870 |
| Heber | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Heber | 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 |
| Hebo | OR | Oregon Area Code(s): 503 541 |
| Hebron | CT | Connecticut Area Code(s): 203 860 |
| Hebron | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hebron | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hebron | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hebron | MD | Maryland Area Code(s): 301 410 |
| Hebron | ME | Maine Area Code(s): 207 |
| Hebron | ND | North Dakota Area Code(s): 701 |
| Hebron | NE | Nebraska Area Code(s): 308 402 |
| Hebron | NH | New Hampshire Area Code(s): 603 |
| Hebron | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hecker | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hecla | SD | South Dakota Area Code(s): 605 |
| Hector | AR | Arkansas Area Code(s): 479 501 870 |
| Hector | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hector | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hedgesville | WV | West Virginia Area Code(s): 304 |
| Hedley | 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 |
| Hedrick | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Heflin | AL | Alabama Area Code(s): 205 251 256 334 |
| Heflin | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hegins | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Heidelberg | KY | Kentucky Area Code(s): 270 502 606 859 |
| Heidelberg | MS | Mississippi Area Code(s): 228 601 662 |
| Heidenheimer | 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 |
| Heidrick | KY | Kentucky Area Code(s): 270 502 606 859 |
| Heilwood | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Heiskell | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Heislerville | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Heisson | WA | Washington Area Code(s): 206 253 360 425 509 |
| Helen | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Helen | MD | Maryland Area Code(s): 301 410 |
| Helen | WV | West Virginia Area Code(s): 304 |
| Helena | AL | Alabama Area Code(s): 205 251 256 334 |
| Helena | AR | Arkansas Area Code(s): 479 501 870 |
| Helena | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Helena | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Helena | MT | Montana Area Code(s): 406 |
| Helena | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Helena | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Helena | OK | Oklahoma Area Code(s): 405 580 918 |
| Helendale | 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 |
| Helenville | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Helenwood | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Helix | OR | Oregon Area Code(s): 503 541 |
| Hellertown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hellier | KY | Kentucky Area Code(s): 270 502 606 859 |
| Helm | 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 |
| Helmetta | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Helmsburg | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Helmville | MT | Montana Area Code(s): 406 |
| Helotes | 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 |
| Helper | UT | Utah Area Code(s): 435 801 |
| Helton | KY | Kentucky Area Code(s): 270 502 606 859 |
| Heltonville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Helvetia | WV | West Virginia Area Code(s): 304 |
| Hematite | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hemet | 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 |
| Hemingford | NE | Nebraska Area Code(s): 308 402 |
| Hemingway | SC | South Carolina Area Code(s): 803 843 864 |
| Hemlock | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hemlock | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hemlock | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hemphill | 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 |
| Hemphill | WV | West Virginia Area Code(s): 304 |
| Hempstead | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hempstead | 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 |
| Henagar | AL | Alabama Area Code(s): 205 251 256 334 |
| Henderson Harbor | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Henderson | AR | Arkansas Area Code(s): 479 501 870 |
| Henderson | CO | Colorado Area Code(s): 303 719 970 |
| Henderson | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Henderson | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Henderson | KY | Kentucky Area Code(s): 270 502 606 859 |
| Henderson | MD | Maryland Area Code(s): 301 410 |
| Henderson | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Henderson | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Henderson | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Henderson | NE | Nebraska Area Code(s): 308 402 |
| Henderson | NV | Nevada Area Code(s): 702 775 |
| Henderson | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Henderson | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Henderson | 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 |
| Henderson | WV | West Virginia Area Code(s): 304 |
| Hendersonville | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hendersonville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hendersonville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hendley | NE | Nebraska Area Code(s): 308 402 |
| Hendricks | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hendricks | WV | West Virginia Area Code(s): 304 |
| Hendrix | OK | Oklahoma Area Code(s): 405 580 918 |
| Hendrum | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Henefer | UT | Utah Area Code(s): 435 801 |
| Henlawson | WV | West Virginia Area Code(s): 304 |
| Henley | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hennepin | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hennepin | OK | Oklahoma Area Code(s): 405 580 918 |
| Hennessey | OK | Oklahoma Area Code(s): 405 580 918 |
| Henniker | NH | New Hampshire Area Code(s): 603 |
| Henning | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Henning | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Henning | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Henrico | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Henrietta | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Henrietta | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Henrietta | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Henrietta | 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 |
| Henriette | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Henrieville | UT | Utah Area Code(s): 435 801 |
| Henry | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Henry | SD | South Dakota Area Code(s): 605 |
| Henry | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Henry | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Henryetta | OK | Oklahoma Area Code(s): 405 580 918 |
| Henryville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Henryville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hensel | ND | North Dakota Area Code(s): 701 |
| Hensley | AR | Arkansas Area Code(s): 479 501 870 |
| Hensley | WV | West Virginia Area Code(s): 304 |
| Hensonville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hephzibah | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hepler | KS | Kansas Area Code(s): 316 620 785 913 |
| Heppner | OR | Oregon Area Code(s): 503 541 |
| Hepzibah | WV | West Virginia Area Code(s): 304 |
| Herald | 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 |
| Herald | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Herbster | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Herculaneum | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hercules | 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 |
| Hereford | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Hereford | CO | Colorado Area Code(s): 303 719 970 |
| Hereford | OR | Oregon Area Code(s): 503 541 |
| Hereford | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hereford | 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 |
| Herington | KS | Kansas Area Code(s): 316 620 785 913 |
| Herkimer | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Herlong | 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 |
| Herman | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Herman | NE | Nebraska Area Code(s): 308 402 |
| Herman | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hermann | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hermansville | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hermanville | MS | Mississippi Area Code(s): 228 601 662 |
| Herminie | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hermiston | OR | Oregon Area Code(s): 503 541 |
| Hermitage | AR | Arkansas Area Code(s): 479 501 870 |
| Hermitage | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hermitage | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hermitage | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hermleigh | 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 |
| Hermon | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hermosa 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 |
| Hermosa | SD | South Dakota Area Code(s): 605 |
| Hernandez | NM | New Mexico Area Code(s): 505 |
| Hernando | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Hernando | MS | Mississippi Area Code(s): 228 601 662 |
| Herndon | KS | Kansas Area Code(s): 316 620 785 913 |
| Herndon | KY | Kentucky Area Code(s): 270 502 606 859 |
| Herndon | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Herndon | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Herndon | WV | West Virginia Area Code(s): 304 |
| Hernshaw | WV | West Virginia Area Code(s): 304 |
| Herod | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Heron Lake | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Heron | MT | Montana Area Code(s): 406 |
| Herreid | SD | South Dakota Area Code(s): 605 |
| Herrick Center | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Herrick | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Herrick | SD | South Dakota Area Code(s): 605 |
| Herrin | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Herron | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Herscher | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hersey | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hershey | NE | Nebraska Area Code(s): 308 402 |
| Hershey | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hertel | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hertford | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hesperia | 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 |
| Hesperia | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hesperus | CO | Colorado Area Code(s): 303 719 970 |
| Hessel | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hessmer | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hesston | KS | Kansas Area Code(s): 316 620 785 913 |
| Hesston | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hestand | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hester | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Heth | AR | Arkansas Area Code(s): 479 501 870 |
| Hettick | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hettinger | ND | North Dakota Area Code(s): 701 |
| Heuvelton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hewett | WV | West Virginia Area Code(s): 304 |
| Hewitt | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hewitt | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hewitt | 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 |
| Hewitt | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hewlett | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hext | 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 |
| Heyburn | ID | Idaho Area Code(s): 208 |
| Heyworth | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hi Hat | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hialeah | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Hiawassee | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hiawatha | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hiawatha | KS | Kansas Area Code(s): 316 620 785 913 |
| Hiawatha | UT | Utah Area Code(s): 435 801 |
| Hiawatha | WV | West Virginia Area Code(s): 304 |
| Hibbing | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hibbs | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hibernia | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hickam Afb | HI | Hawaii Area Code(s): 808 |
| Hickman | 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 |
| Hickman | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hickman | NE | Nebraska Area Code(s): 308 402 |
| Hickman | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hickory Corners | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hickory Flat | MS | Mississippi Area Code(s): 228 601 662 |
| Hickory Grove | SC | South Carolina Area Code(s): 803 843 864 |
| Hickory Hills | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hickory Plains | AR | Arkansas Area Code(s): 479 501 870 |
| Hickory Ridge | AR | Arkansas Area Code(s): 479 501 870 |
| Hickory Valley | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hickory | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hickory | MS | Mississippi Area Code(s): 228 601 662 |
| Hickory | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hickory | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hicksville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hicksville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hico | 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 |
| Hico | WV | West Virginia Area Code(s): 304 |
| Hidalgo | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hidalgo | 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 |
| Hidden Valley | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hiddenite | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Higbee | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Higden | AR | Arkansas Area Code(s): 479 501 870 |
| Higdon | AL | Alabama Area Code(s): 205 251 256 334 |
| Higganum | CT | Connecticut Area Code(s): 203 860 |
| Higgins Lake | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Higgins | 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 |
| Higginson | AR | Arkansas Area Code(s): 479 501 870 |
| Higginsport | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Higginsville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| High Bridge | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| High Bridge | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| High Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| High Hill | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| High 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 |
| High Point | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| High Point | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| High Ridge | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| High Rolls Mountain Park | NM | New Mexico Area Code(s): 505 |
| High Shoals | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| High Shoals | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| High Springs | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| High View | WV | West Virginia Area Code(s): 304 |
| Highfalls | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Highgate Center | VT | Vermont Area Code(s): 802 |
| Highgate Springs | VT | Vermont Area Code(s): 802 |
| Highland City | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Highland Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Highland Home | AL | Alabama Area Code(s): 205 251 256 334 |
| Highland Lake | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Highland Lakes | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Highland Mills | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Highland Park | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Highland Park | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Highland Park | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Highland Springs | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Highland | 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 |
| Highland | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Highland | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Highland | KS | Kansas Area Code(s): 316 620 785 913 |
| Highland | MD | Maryland Area Code(s): 301 410 |
| Highland | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Highland | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Highland | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Highland | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Highlands | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Highlands | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Highlands | 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 |
| Highlandville | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Highlandville | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Highmore | SD | South Dakota Area Code(s): 605 |
| Highmount | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Highspire | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hightstown | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Highwood | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Highwood | MT | Montana Area Code(s): 406 |
| Higley | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Hiko | NV | Nevada Area Code(s): 702 775 |
| Hiland | WY | Wyoming Area Code(s): 208 307 |
| Hilbert | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hilda | SC | South Carolina Area Code(s): 803 843 864 |
| Hildale | UT | Utah Area Code(s): 435 801 |
| Hildebran | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hildreth | NE | Nebraska Area Code(s): 308 402 |
| Hilger | MT | Montana Area Code(s): 406 |
| Hilham | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hill Afb | UT | Utah Area Code(s): 435 801 |
| Hill City | ID | Idaho Area Code(s): 208 |
| Hill City | KS | Kansas Area Code(s): 316 620 785 913 |
| Hill City | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hill City | SD | South Dakota Area Code(s): 605 |
| Hill | NH | New Hampshire Area Code(s): 603 |
| Hillburn | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hiller | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hilliard | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Hilliard | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hilliards | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hillister | 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 |
| Hillman | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hillman | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hillpoint | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hillrose | CO | Colorado Area Code(s): 303 719 970 |
| Hills | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hills | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hillsboro | AL | Alabama Area Code(s): 205 251 256 334 |
| Hillsboro | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hillsboro | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hillsboro | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hillsboro | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hillsboro | KS | Kansas Area Code(s): 316 620 785 913 |
| Hillsboro | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hillsboro | MD | Maryland Area Code(s): 301 410 |
| Hillsboro | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hillsboro | MS | Mississippi Area Code(s): 228 601 662 |
| Hillsboro | ND | North Dakota Area Code(s): 701 |
| Hillsboro | NH | New Hampshire Area Code(s): 603 |
| Hillsboro | NM | New Mexico Area Code(s): 505 |
| Hillsboro | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hillsboro | OR | Oregon Area Code(s): 503 541 |
| Hillsboro | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Hillsboro | 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 |
| Hillsboro | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hillsboro | WV | West Virginia Area Code(s): 304 |
| Hillsborough | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Hillsborough | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hillsdale | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hillsdale | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Hillsdale | KS | Kansas Area Code(s): 316 620 785 913 |
| Hillsdale | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Hillsdale | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hillsdale | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hillsdale | OK | Oklahoma Area Code(s): 405 580 918 |
| Hillsdale | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hillsdale | WY | Wyoming Area Code(s): 208 307 |
| Hillsgrove | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hillside | CO | Colorado Area Code(s): 303 719 970 |
| Hillside | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hillside | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Hillsville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hillsville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hilltop | WV | West Virginia Area Code(s): 304 |
| Hilltown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Hillview | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hillview | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hilmar | 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 |
| Hilo | HI | Hawaii Area Code(s): 808 |
| Hilton Head Island | SC | South Carolina Area Code(s): 803 843 864 |
| Hilton | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hiltons | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hima | KY | Kentucky Area Code(s): 270 502 606 859 |
| Himrod | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hinckley | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hinckley | ME | Maine Area Code(s): 207 |
| Hinckley | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hinckley | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hinckley | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hinckley | UT | Utah Area Code(s): 435 801 |
| Hindman | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hindsboro | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hindsville | AR | Arkansas Area Code(s): 479 501 870 |
| Hines | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hines | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Hines | OR | Oregon Area Code(s): 503 541 |
| Hines | WV | West Virginia Area Code(s): 304 |
| Hinesburg | VT | Vermont Area Code(s): 802 |
| Hineston | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Hinesville | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hingham | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hingham | MT | Montana Area Code(s): 406 |
| Hingham | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Hinkle | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hinkley | 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 |
| Hinsdale | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Hinsdale | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Hinsdale | MT | Montana Area Code(s): 406 |
| Hinsdale | NH | New Hampshire Area Code(s): 603 |
| Hinsdale | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Hinton | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Hinton | OK | Oklahoma Area Code(s): 405 580 918 |
| Hinton | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Hinton | WV | West Virginia Area Code(s): 304 |
| Hiram | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Hiram | ME | Maine Area Code(s): 207 |
| Hiram | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Hiram | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Hiseville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hitchcock | OK | Oklahoma Area Code(s): 405 580 918 |
| Hitchcock | SD | South Dakota Area Code(s): 605 |
| Hitchcock | 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 |
| Hitchins | KY | Kentucky Area Code(s): 270 502 606 859 |
| Hitchita | OK | Oklahoma Area Code(s): 405 580 918 |
| Hitterdal | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |