| City | State | Area Code(s) |
| Newport | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Newport | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Newport | NE | Nebraska Area Code(s): 308 402 |
| Newport | NH | New Hampshire Area Code(s): 603 |
| Newport | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Newport | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Newport | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Newport | OR | Oregon Area Code(s): 503 541 |
| Newport | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Newport | RI | Rhode Island Area Code(s): 401 |
| Newport | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Newport | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Newport | VT | Vermont Area Code(s): 802 |
| Newport | WA | Washington Area Code(s): 206 253 360 425 509 |
| Newry | ME | Maine Area Code(s): 207 |
| Newry | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Newry | SC | South Carolina Area Code(s): 803 843 864 |
| Newsoms | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Newton Center | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Newton Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Newton Falls | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Newton Grove | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Newton Hamilton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Newton Highlands | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Newton Junction | NH | New Hampshire Area Code(s): 603 |
| Newton Lower Falls | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Newton Upper Falls | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Newton | AL | Alabama Area Code(s): 205 251 256 334 |
| Newton | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Newton | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Newton | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Newton | KS | Kansas Area Code(s): 316 620 785 913 |
| Newton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Newton | MS | Mississippi Area Code(s): 228 601 662 |
| Newton | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Newton | NH | New Hampshire Area Code(s): 603 |
| Newton | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Newton | 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 |
| Newton | UT | Utah Area Code(s): 435 801 |
| Newton | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Newton | WV | West Virginia Area Code(s): 304 |
| Newtonia | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Newtonsville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Newtonville | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Newtonville | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Newtonville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Newtown Square | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Newtown | CT | Connecticut Area Code(s): 203 860 |
| Newtown | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Newtown | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Newtown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Newtown | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Newtown | WV | West Virginia Area Code(s): 304 |
| Newville | AL | Alabama Area Code(s): 205 251 256 334 |
| Newville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Ney | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Nezperce | ID | Idaho Area Code(s): 208 |
| Niagara Falls | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Niagara University | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Niagara | ND | North Dakota Area Code(s): 701 |
| Niagara | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Niangua | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Niantic | CT | Connecticut Area Code(s): 203 860 |
| Niantic | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Nicasio | 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 |
| Nice | 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 |
| Niceville | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Nicholasville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Nicholls | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Nichols | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Nichols | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Nichols | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Nichols | SC | South Carolina Area Code(s): 803 843 864 |
| Nichols | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Nicholson | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Nicholson | MS | Mississippi Area Code(s): 228 601 662 |
| Nicholson | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nicholville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Nickelsville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Nickerson | KS | Kansas Area Code(s): 316 620 785 913 |
| Nickerson | NE | Nebraska Area Code(s): 308 402 |
| Nicktown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nicolaus | 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 |
| Nicollet | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Nicoma Park | OK | Oklahoma Area Code(s): 405 580 918 |
| Nielsville | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Nightmute | AK | Alaska Area Code(s): 907 |
| Nikiski | AK | Alaska Area Code(s): 907 |
| Nikolai | AK | Alaska Area Code(s): 907 |
| Nikolski | AK | Alaska Area Code(s): 907 |
| Niland | 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 |
| Niles | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Niles | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Niles | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Nilwood | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Nimitz | WV | West Virginia Area Code(s): 304 |
| Nimrod | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Ninde | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Nine Mile Falls | WA | Washington Area Code(s): 206 253 360 425 509 |
| Ninety Six | SC | South Carolina Area Code(s): 803 843 864 |
| Nineveh | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Nineveh | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Nineveh | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Ninilchik | AK | Alaska Area Code(s): 907 |
| Ninnekah | OK | Oklahoma Area Code(s): 405 580 918 |
| Ninole | HI | Hawaii Area Code(s): 808 |
| Niobe | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Niobrara | NE | Nebraska Area Code(s): 308 402 |
| Niota | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Niota | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Niotaze | KS | Kansas Area Code(s): 316 620 785 913 |
| Nipomo | 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 |
| Nipton | 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 |
| Nisbet | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nisland | SD | South Dakota Area Code(s): 605 |
| Nisswa | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Nisula | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Nitro | WV | West Virginia Area Code(s): 304 |
| Niverville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Niwot | CO | Colorado Area Code(s): 303 719 970 |
| Nixa | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Nixon | NV | Nevada Area Code(s): 702 775 |
| Nixon | 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 |
| Noatak | AK | Alaska Area Code(s): 907 |
| Noble | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Noble | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Noble | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Noble | OK | Oklahoma Area Code(s): 405 580 918 |
| Nobleboro | ME | Maine Area Code(s): 207 |
| Noblesville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Nobleton | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Nocatee | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Nocona | 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 |
| Nodaway | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Noel | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Nogal | NM | New Mexico Area Code(s): 505 |
| Nogales | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Nokesville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Nokomis | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Nokomis | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Nolan | 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 |
| Nolan | WV | West Virginia Area Code(s): 304 |
| Nolanville | 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 |
| Nolensville | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Noma | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Nome | AK | Alaska Area Code(s): 907 |
| Nome | ND | North Dakota Area Code(s): 701 |
| Nome | 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 |
| Nonantum | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Nondalton | AK | Alaska Area Code(s): 907 |
| Nooksack | WA | Washington Area Code(s): 206 253 360 425 509 |
| Noonan | ND | North Dakota Area Code(s): 701 |
| Noorvik | AK | Alaska Area Code(s): 907 |
| Nora Springs | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Nora | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Nora | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Norborne | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Norcatur | KS | Kansas Area Code(s): 316 620 785 913 |
| Norco | 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 |
| Norco | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Norcross | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Norcross | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Norden | 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 |
| Nordheim | 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 |
| Nordland | WA | Washington Area Code(s): 206 253 360 425 509 |
| Nordman | ID | Idaho Area Code(s): 208 |
| Norene | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Norfolk | CT | Connecticut Area Code(s): 203 860 |
| Norfolk | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Norfolk | NE | Nebraska Area Code(s): 308 402 |
| Norfolk | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Norfolk | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Norfork | AR | Arkansas Area Code(s): 479 501 870 |
| Norge | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Norlina | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Norma | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Normal | AL | Alabama Area Code(s): 205 251 256 334 |
| Normal | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Normalville | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Norman Park | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Norman | AR | Arkansas Area Code(s): 479 501 870 |
| Norman | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Norman | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Norman | OK | Oklahoma Area Code(s): 405 580 918 |
| Normandy Beach | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Normandy | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Normangee | 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 |
| Normanna | 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 |
| Normantown | WV | West Virginia Area Code(s): 304 |
| Norphlet | AR | Arkansas Area Code(s): 479 501 870 |
| Norridgewock | ME | Maine Area Code(s): 207 |
| Norris City | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Norris | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Norris | MT | Montana Area Code(s): 406 |
| Norris | SC | South Carolina Area Code(s): 803 843 864 |
| Norris | SD | South Dakota Area Code(s): 605 |
| Norris | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Norristown | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Norristown | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Adams | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Adams | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| North Amherst | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Andover | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Anson | ME | Maine Area Code(s): 207 |
| North Apollo | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Arlington | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| North Attleboro | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Augusta | SC | South Carolina Area Code(s): 803 843 864 |
| North Aurora | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| North Babylon | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Baltimore | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Bangor | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Bay | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Beach | MD | Maryland Area Code(s): 301 410 |
| North Bend | NE | Nebraska Area Code(s): 308 402 |
| North Bend | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Bend | OR | Oregon Area Code(s): 503 541 |
| North Bend | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Bend | WA | Washington Area Code(s): 206 253 360 425 509 |
| North Bennington | VT | Vermont Area Code(s): 802 |
| North Benton | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Bergen | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| North Berwick | ME | Maine Area Code(s): 207 |
| North Billerica | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Blenheim | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Bloomfield | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Bonneville | WA | Washington Area Code(s): 206 253 360 425 509 |
| North Boston | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Branch | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| North Branch | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| North Branch | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Branford | CT | Connecticut Area Code(s): 203 860 |
| North Bridgton | ME | Maine Area Code(s): 207 |
| North Brookfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Brookfield | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Brunswick | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| North Buena Vista | IA | Iowa Area Code(s): 319 515 563 641 712 |
| North Canton | CT | Connecticut Area Code(s): 203 860 |
| North Carrollton | MS | Mississippi Area Code(s): 228 601 662 |
| North Carver | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Charleston | SC | South Carolina Area Code(s): 803 843 864 |
| North Chatham | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Chatham | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Chelmsford | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Chicago | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| North Chili | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Clarendon | VT | Vermont Area Code(s): 802 |
| North Collins | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Concord | VT | Vermont Area Code(s): 802 |
| North Conway | NH | New Hampshire Area Code(s): 603 |
| North Creek | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Dartmouth | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Dighton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North East | MD | Maryland Area Code(s): 301 410 |
| North East | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Eastham | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Easton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Egremont | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North English | IA | Iowa Area Code(s): 319 515 563 641 712 |
| North Evans | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Fairfield | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Falmouth | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Ferrisburg | VT | Vermont Area Code(s): 802 |
| North Fork | 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 |
| North Fork | ID | Idaho Area Code(s): 208 |
| North Fort Myers | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| North Franklin | CT | Connecticut Area Code(s): 203 860 |
| North Freedom | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| North Garden | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| North Georgetown | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Grafton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Granby | CT | Connecticut Area Code(s): 203 860 |
| North Granville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Greece | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Grosvenordale | CT | Connecticut Area Code(s): 203 860 |
| North Hampton | NH | New Hampshire Area Code(s): 603 |
| North Hampton | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Hartland | VT | Vermont Area Code(s): 802 |
| North Hatfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Haven | CT | Connecticut Area Code(s): 203 860 |
| North Haven | ME | Maine Area Code(s): 207 |
| North Haverhill | NH | New Hampshire Area Code(s): 603 |
| North Henderson | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| North Hero | VT | Vermont Area Code(s): 802 |
| North Highlands | 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 |
| North Hills | 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 |
| North Hollywood | 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 |
| North Hoosick | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Houston | TX | Texas Area Code(s): 210 214 254 281 325 361 409 432 512 713 806 817 830 903 915 936 940 956 972 979 |
| North Hudson | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Hyde Park | VT | Vermont Area Code(s): 802 |
| North Jackson | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Java | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Jay | ME | Maine Area Code(s): 207 |
| North Judson | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| North Kingstown | RI | Rhode Island Area Code(s): 401 |
| North Kingsville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Lake | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| North Lakewood | WA | Washington Area Code(s): 206 253 360 425 509 |
| North Las Vegas | NV | Nevada Area Code(s): 702 775 |
| North Lawrence | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Lawrence | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Lewisburg | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Liberty | IA | Iowa Area Code(s): 319 515 563 641 712 |
| North Liberty | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| North Lima | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Little Rock | AR | Arkansas Area Code(s): 479 501 870 |
| North Loup | NE | Nebraska Area Code(s): 308 402 |
| North Manchester | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| North Marshfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Matewan | WV | West Virginia Area Code(s): 304 |
| North Metro | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| North Miami Beach | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| North Miami | OK | Oklahoma Area Code(s): 405 580 918 |
| North Middletown | KY | Kentucky Area Code(s): 270 502 606 859 |
| North Monmouth | ME | Maine Area Code(s): 207 |
| North Montpelier | VT | Vermont Area Code(s): 802 |
| North Myrtle Beach | SC | South Carolina Area Code(s): 803 843 864 |
| North Newton | KS | Kansas Area Code(s): 316 620 785 913 |
| North Norwich | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Olmsted | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Oxford | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Palm Beach | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| North Palm Springs | CA | California Area Code(s): 209 213 310 323 408 415 510 530 559 562 619 626 650 661 707 714 760 805 818 831 858 909 916 925 949 |
| North Pembroke | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Pitcher | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Plains | OR | Oregon Area Code(s): 503 541 |
| North Platte | NE | Nebraska Area Code(s): 308 402 |
| North Pole | AK | Alaska Area Code(s): 907 |
| North Pomfret | VT | Vermont Area Code(s): 802 |
| North Port | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| North Powder | OR | Oregon Area Code(s): 503 541 |
| North Pownal | VT | Vermont Area Code(s): 802 |
| North Prairie | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| North Providence | RI | Rhode Island Area Code(s): 401 |
| North Reading | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Richland Hills | 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 |
| North Ridgeville | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Rim | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| North River | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Robinson | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Rose | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Royalton | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Salem | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| North Salem | NH | New Hampshire Area Code(s): 603 |
| North Salem | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Salt Lake | UT | Utah Area Code(s): 435 801 |
| North San Juan | 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 |
| North Sandwich | NH | New Hampshire Area Code(s): 603 |
| North Scituate | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Scituate | RI | Rhode Island Area Code(s): 401 |
| North Sioux City | SD | South Dakota Area Code(s): 605 |
| North Smithfield | RI | Rhode Island Area Code(s): 401 |
| North Spring | WV | West Virginia Area Code(s): 304 |
| North Springfield | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Springfield | VT | Vermont Area Code(s): 802 |
| North Star | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| North Star | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| North Stonington | CT | Connecticut Area Code(s): 203 860 |
| North Stratford | NH | New Hampshire Area Code(s): 603 |
| North Street | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| North Sutton | NH | New Hampshire Area Code(s): 603 |
| North Tazewell | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| North Thetford | VT | Vermont Area Code(s): 802 |
| North Tonawanda | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| North Troy | VT | Vermont Area Code(s): 802 |
| North Truro | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Turner | ME | Maine Area Code(s): 207 |
| North Uxbridge | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Vassalboro | ME | Maine Area Code(s): 207 |
| North Vernon | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| North Versailles | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Wales | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Walpole | NH | New Hampshire Area Code(s): 603 |
| North Waltham | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Washington | IA | Iowa Area Code(s): 319 515 563 641 712 |
| North Washington | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| North Waterboro | ME | Maine Area Code(s): 207 |
| North Waterford | ME | Maine Area Code(s): 207 |
| North Webster | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| North Westchester | CT | Connecticut Area Code(s): 203 860 |
| North Weymouth | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| North Wilkesboro | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| North Windham | CT | Connecticut Area Code(s): 203 860 |
| North Woodstock | NH | New Hampshire Area Code(s): 603 |
| North Yarmouth | ME | Maine Area Code(s): 207 |
| North Zulch | 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 |
| North | SC | South Carolina Area Code(s): 803 843 864 |
| North | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Northampton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Northampton | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Northboro | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Northborough | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Northbridge | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Northbrook | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Northeast Harbor | ME | Maine Area Code(s): 207 |
| Northern Cambria | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Northfield Falls | VT | Vermont Area Code(s): 802 |
| Northfield | CT | Connecticut Area Code(s): 203 860 |
| Northfield | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Northfield | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Northfield | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Northfield | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Northfield | VT | Vermont Area Code(s): 802 |
| Northford | CT | Connecticut Area Code(s): 203 860 |
| Northfork | WV | West Virginia Area Code(s): 304 |
| Northome | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Northpoint | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Northport | AL | Alabama Area Code(s): 205 251 256 334 |
| Northport | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Northport | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Northport | WA | Washington Area Code(s): 206 253 360 425 509 |
| Northridge | 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 |
| Northrop | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Northumberland | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Northvale | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Northville | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Northville | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Northville | SD | South Dakota Area Code(s): 605 |
| Northway | AK | Alaska Area Code(s): 907 |
| Northwood | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Northwood | ND | North Dakota Area Code(s): 701 |
| Northwood | NH | New Hampshire Area Code(s): 603 |
| Northwood | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Norton | KS | Kansas Area Code(s): 316 620 785 913 |
| Norton | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Norton | 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 |
| Norton | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Norton | VT | Vermont Area Code(s): 802 |
| Norton | WV | West Virginia Area Code(s): 304 |
| Nortonville | KS | Kansas Area Code(s): 316 620 785 913 |
| Nortonville | KY | Kentucky Area Code(s): 270 502 606 859 |
| Norvell | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Norvelt | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Norwalk | 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 |
| Norwalk | CT | Connecticut Area Code(s): 203 860 |
| Norwalk | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Norwalk | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Norwalk | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Norway | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Norway | KS | Kansas Area Code(s): 316 620 785 913 |
| Norway | ME | Maine Area Code(s): 207 |
| Norway | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Norway | SC | South Carolina Area Code(s): 803 843 864 |
| Norwell | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Norwich | CT | Connecticut Area Code(s): 203 860 |
| Norwich | KS | Kansas Area Code(s): 316 620 785 913 |
| Norwich | ND | North Dakota Area Code(s): 701 |
| Norwich | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Norwich | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Norwich | VT | Vermont Area Code(s): 802 |
| Norwood | CO | Colorado Area Code(s): 303 719 970 |
| Norwood | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Norwood | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Norwood | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Norwood | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Norwood | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Norwood | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Norwood | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Norwood | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Norwood | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Norwood | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Notasulga | AL | Alabama Area Code(s): 205 251 256 334 |
| Noti | OR | Oregon Area Code(s): 503 541 |
| Notre Dame | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Notrees | 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 |
| Nottawa | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Nottingham | MD | Maryland Area Code(s): 301 410 |
| Nottingham | NH | New Hampshire Area Code(s): 603 |
| Nottingham | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nottoway | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Notus | ID | Idaho Area Code(s): 208 |
| Nova | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Novato | 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 |
| Novelty | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Novelty | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Novi | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Novice | 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 |
| Novinger | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Nowata | OK | Oklahoma Area Code(s): 405 580 918 |
| Noxapater | MS | Mississippi Area Code(s): 228 601 662 |
| Noxen | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Noxon | MT | Montana Area Code(s): 406 |
| Noyes | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Nu Mine | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nubieber | 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 |
| Nucla | CO | Colorado Area Code(s): 303 719 970 |
| Nuevo | 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 |
| Nuiqsut | AK | Alaska Area Code(s): 907 |
| Nulato | AK | Alaska Area Code(s): 907 |
| Numidia | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nunam Iqua | AK | Alaska Area Code(s): 907 |
| Nunapitchuk | AK | Alaska Area Code(s): 907 |
| Nunda | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Nunda | SD | South Dakota Area Code(s): 605 |
| Nunez | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Nunica | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Nunn | CO | Colorado Area Code(s): 303 719 970 |
| Nunnelly | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Nuremberg | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Nursery | 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 |
| Nutley | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Nutrioso | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Nutting Lake | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Nuttsville | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Nyack | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Nye | MT | Montana Area Code(s): 406 |
| Nyssa | OR | Oregon Area Code(s): 503 541 |
| O Brien | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| O Brien | OR | Oregon Area Code(s): 503 541 |
| O Brien | 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 |
| O Fallon | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| O Fallon | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| O Kean | AR | Arkansas Area Code(s): 479 501 870 |
| O Neals | 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 |
| Oacoma | SD | South Dakota Area Code(s): 605 |
| Oak Bluffs | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Oak Brook | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oak City | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Oak City | UT | Utah Area Code(s): 435 801 |
| Oak Creek | CO | Colorado Area Code(s): 303 719 970 |
| Oak Creek | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Oak Forest | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oak Grove | AR | Arkansas Area Code(s): 479 501 870 |
| Oak Grove | KY | Kentucky Area Code(s): 270 502 606 859 |
| Oak Grove | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Oak Grove | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Oak Grove | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Oak Hall | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Oak Harbor | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Oak Harbor | WA | Washington Area Code(s): 206 253 360 425 509 |
| Oak Hill | AL | Alabama Area Code(s): 205 251 256 334 |
| Oak Hill | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Oak Hill | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oak Hill | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Oak Hill | WV | West Virginia Area Code(s): 304 |
| Oak Island | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Oak Island | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Oak Lawn | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oak Park | 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 |
| Oak Park | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oak Park | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Oak Park | MN | Minnesota Area Code(s): 218 320 507 612 651 763 952 |
| Oak Ridge | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Oak Ridge | MO | Missouri Area Code(s): 314 417 573 636 660 816 |
| Oak Ridge | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Oak Ridge | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oak Ridge | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Oak Ridge | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Oak Run | 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 |
| Oak Vale | MS | Mississippi Area Code(s): 228 601 662 |
| Oak View | 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 |
| Oak | NE | Nebraska Area Code(s): 308 402 |
| Oakboro | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Oakdale | 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 |
| Oakdale | CT | Connecticut Area Code(s): 203 860 |
| Oakdale | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Oakdale | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oakdale | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Oakdale | NE | Nebraska Area Code(s): 308 402 |
| Oakdale | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oakdale | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Oakdale | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Oakdale | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Oakes | ND | North Dakota Area Code(s): 701 |
| Oakesdale | WA | Washington Area Code(s): 206 253 360 425 509 |
| Oakfield | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Oakfield | ME | Maine Area Code(s): 207 |
| Oakfield | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oakfield | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Oakfield | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Oakford | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oakford | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Oakham | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Oakhurst | 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 |
| Oakhurst | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oakhurst | OK | Oklahoma Area Code(s): 405 580 918 |
| Oakhurst | 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 |
| Oakland City | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Oakland Gardens | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oakland Mills | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Oakland | AR | Arkansas Area Code(s): 479 501 870 |
| Oakland | 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 |
| Oakland | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Oakland | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Oakland | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oakland | KY | Kentucky Area Code(s): 270 502 606 859 |
| Oakland | MD | Maryland Area Code(s): 301 410 |
| Oakland | ME | Maine Area Code(s): 207 |
| Oakland | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Oakland | MS | Mississippi Area Code(s): 228 601 662 |
| Oakland | NE | Nebraska Area Code(s): 308 402 |
| Oakland | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oakland | OR | Oregon Area Code(s): 503 541 |
| Oakland | RI | Rhode Island Area Code(s): 401 |
| Oakland | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Oakland | 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 |
| Oakley | 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 |
| Oakley | ID | Idaho Area Code(s): 208 |
| Oakley | KS | Kansas Area Code(s): 316 620 785 913 |
| Oakley | MI | Michigan Area Code(s): 231 248 269 313 517 586 616 734 810 906 989 |
| Oakley | UT | Utah Area Code(s): 435 801 |
| Oaklyn | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oakman | AL | Alabama Area Code(s): 205 251 256 334 |
| Oakman | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Oakmont | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Oakpark | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Oakridge | OR | Oregon Area Code(s): 503 541 |
| Oaks Corners | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oaks | OK | Oklahoma Area Code(s): 405 580 918 |
| Oaks | PA | Pennsylvania Area Code(s): 215 412 570 610 717 724 814 |
| Oakton | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Oaktown | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Oakvale | WV | West Virginia Area Code(s): 304 |
| Oakville | 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 |
| Oakville | CT | Connecticut Area Code(s): 203 860 |
| Oakville | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Oakville | IN | Indiana Area Code(s): 219 260 317 574 765 812 |
| Oakville | 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 |
| Oakville | WA | Washington Area Code(s): 206 253 360 425 509 |
| Oakwood | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Oakwood | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oakwood | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Oakwood | OK | Oklahoma Area Code(s): 405 580 918 |
| Oakwood | 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 |
| Oakwood | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Oark | AR | Arkansas Area Code(s): 479 501 870 |
| Oasis | UT | Utah Area Code(s): 435 801 |
| Oatman | AZ | Arizona Area Code(s): 480 520 602 623 928 |
| Oberlin | KS | Kansas Area Code(s): 316 620 785 913 |
| Oberlin | LA | Louisiana Area Code(s): 225 318 337 504 985 |
| Oberlin | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Obernburg | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oberon | ND | North Dakota Area Code(s): 701 |
| Obion | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Oblong | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Obrien | 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 |
| Ocala | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Ocate | NM | New Mexico Area Code(s): 505 |
| Occidental | 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 |
| Occoquan | VA | Virginia Area Code(s): 276 434 540 703 757 804 |
| Ocean Beach | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Ocean Bluff | MA | Massachusetts Area Code(s): 413 508 617 781 978 |
| Ocean City | MD | Maryland Area Code(s): 301 410 |
| Ocean City | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Ocean Gate | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Ocean Grove | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Ocean Isle Beach | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Ocean Park | ME | Maine Area Code(s): 207 |
| Ocean Park | WA | Washington Area Code(s): 206 253 360 425 509 |
| Ocean Shores | WA | Washington Area Code(s): 206 253 360 425 509 |
| Ocean Springs | MS | Mississippi Area Code(s): 228 601 662 |
| Ocean View | DE | Delaware Area Code(s): 302 |
| Ocean View | HI | Hawaii Area Code(s): 808 |
| Ocean View | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oceana | WV | West Virginia Area Code(s): 304 |
| Oceano | 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 |
| Oceanport | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oceanside | 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 |
| Oceanside | NY | New York Area Code(s): 212 315 516 518 585 607 631 716 718 845 914 |
| Oceanside | OR | Oregon Area Code(s): 503 541 |
| Oceanville | NJ | New Jersey Area Code(s): 201 609 732 856 908 973 |
| Oceola | OH | Ohio Area Code(s): 216 330 419 440 513 614 740 859 937 |
| Ochelata | OK | Oklahoma Area Code(s): 405 580 918 |
| Ocheyedan | IA | Iowa Area Code(s): 319 515 563 641 712 |
| Ochlocknee | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Ochopee | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Ocilla | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Ocklawaha | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Ocoee | FL | Florida Area Code(s): 239 305 321 352 386 407 561 727 772 813 850 863 904 941 954 |
| Ocoee | TN | Tennessee Area Code(s): 423 615 731 865 901 931 |
| Oconee | GA | Georgia Area Code(s): 229 404 478 706 770 912 |
| Oconee | IL | Illinois Area Code(s): 217 309 312 618 630 708 773 815 847 |
| Oconomowoc | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Oconto Falls | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Oconto | NE | Nebraska Area Code(s): 308 402 |
| Oconto | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Ocotillo | 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 |
| Ocracoke | NC | North Carolina Area Code(s): 252 336 704 828 910 919 |
| Odanah | WI | Wisconsin Area Code(s): 262 414 608 715 920 |
| Odd | WV | West Virginia Area Code(s): 304 |