US Area Codes Table
| State | Area codes |
|---|---|
| Alabama | 205, 251, 256, 334, 483, 659, 938 |
| Alaska | 907 |
| Arizona | 480, 520, 602, 623, 928 |
| Arkansas | 327, 479, 501, 870 |
| California | 209, 213, 279, 310, 323, 341, 350, 357, 369, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 738, 747, 760, 805, 818, 820, 831, 837, 840, 858, 909, 916, 925, 949, 951 |
| Colorado | 303, 719, 720, 748, 970, 983 |
| Connecticut | 203, 475, 860, 959 |
| Delaware | 302 |
| District of Columbia | 202, 771 |
| Florida | 239, 305, 321, 324, 352, 386, 407, 448, 561, 645, 656, 689, 727, 728, 754, 772, 786, 813, 850, 863, 904, 941, 954 |
| Georgia | 229, 404, 470, 478, 678, 706, 762, 770, 912, 943 |
| Hawaii | 808 |
| Idaho | 208, 986 |
| Illinois | 217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 861, 872 |
| Indiana | 219, 260, 317, 463, 574, 765, 812, 930 |
| Iowa | 319, 515, 563, 641, 712 |
| Kansas | 316, 620, 785, 913 |
| Kentucky | 270, 364, 502, 606, 859 |
| Louisiana | 225, 318, 337, 457, 504, 985 |
| Maine | 207 |
| Maryland | 227, 240, 301, 410, 443, 667 |
| Massachusetts | 339, 351, 413, 508, 617, 774, 781, 857, 978 |
| Michigan | 231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989 |
| Minnesota | 218, 320, 507, 612, 651, 763, 924, 952 |
| Mississippi | 228, 471, 601, 662, 769 |
| Missouri | 235, 314, 417, 557, 573, 636, 660, 816, 975 |
| Montana | 406 |
| Nebraska | 308, 402, 531 |
| Nevada | 702, 725, 775 |
| New Hampshire | 603 |
| New Jersey | 201, 551, 609, 640, 732, 848, 856, 862, 908, 973 |
| New Mexico | 505, 575 |
| New York | 212, 315, 329, 332, 347, 363, 516, 518, 585, 607, 624, 631, 646, 680, 716, 718, 838, 845, 914, 917, 929, 934 |
| North Carolina | 252, 336, 472, 704, 743, 828, 910, 919, 980, 984 |
| North Dakota | 701 |
| Ohio | 216, 220, 234, 283, 326, 330, 380, 419, 436, 440, 513, 567, 614, 740, 937 |
| Oklahoma | 405, 539, 572, 580, 918 |
| Oregon | 458, 503, 541, 971 |
| Pennsylvania | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| Rhode Island | 401 |
| South Carolina | 803, 821, 839, 843, 854, 864 |
| South Dakota | 605 |
| Tennessee | 423, 615, 629, 729, 731, 865, 901, 931 |
| Texas | 210, 214, 254, 281, 325, 346, 361, 409, 430, 432, 469, 512, 621, 682, 713, 726, 737, 806, 817, 830, 832, 903, 915, 936, 940, 945, 956, 972, 979 |
| Utah | 385, 435, 801 |
| Vermont | 802 |
| Virginia | 276, 434, 540, 571, 686, 703, 757, 804, 826, 948 |
| Washington | 206, 253, 360, 425, 509, 564 |
| West Virginia | 304, 681 |
| Wisconsin | 262, 274, 353, 414, 534, 608, 715, 920 |
| Wyoming | 307 |
The area code system was designed in 1947 as a sorting machine for rotary-dial switching, and the table below still wears its fingerprints: the original rule gave high-population states codes that were fast to dial on a rotary phone - New York got 212, Chicago 312, because one and two pulses beat seven - while low-density states drew the slow ones. That is also why middle states like Iowa (319/515/563/641/712) look random today: their codes were minted for toll-routing hierarchies, not vanity.
What has changed since 1947 is density. Every state's list is longer than the founding math expected, and the growth mechanism is the modern story: an overlay assigns a new code to the same geographic footprint as an existing one (which is why your neighbor can have a different code than you, and why ten-digit dialing became mandatory), while a split carves an old code's territory in two (the older, rarer move that gave cities their 'classic' codes and suburbs the new ones).
The extremes of the table are the easiest way in: Alaska has exactly one code (907) for the whole state, while California runs 41 codes and counting - the state with more assigned codes than most countries have exchanges. Between them sit the mid-Atlantic's beltway tangle and a dozen states whose second code arrived only after the 1996 Telecom Act let competing carriers claim number blocks, the policy decision that quietly multiplied the table.
How to use
- Find your state's row: the table lists every assigned code per state (and DC) - use it to place a number, to check whether a code is an overlay of your own, or to settle whether that 'new' code calling you is in-state.
- Read overlays against the list: codes added to the same footprint (Los Angeles's 213 with 323, San Francisco's 415 with 628, New York's 212 with 646 and 332) mean the caller could be next door; a code you have never seen in-state is more often an overlay newcomer than a scam - though the ten-digit dialing that overlays require is why local numbers now look foreign.
- Use the extremes as a sanity check: a single-code state (Alaska 907, Delaware 302, Hawaii 808, Maine 207, Montana 406, the Dakotas, Vermont, Wyoming, New Hampshire, West Virginia, Rhode Island until its 2020s overlay) means any other 'area code' claiming to be local there is out-of-state or VoIP - the fastest fraud screen this table offers.
Frequently asked questions
How many area codes are there in the US?
The North American Numbering Plan assigns codes across 20 countries, and the US portion runs in the low 300s and keeps growing - the table below lists them state by state (DC included). Growth is driven by overlays and number-block carve-ups, not population: California alone holds 41 codes, while eleven or so states still run on one.
Why does California have so many area codes?
Size plus carve-up history: 213/415/916 covered the state in 1947, and each generation of growth split the map again (714, 619, 909, 858...) until splits fell out of favor in the 1990s. Since then new codes are overlays - 820 over 805, 350 over 707 - which multiplies codes without moving anyone, and leaves the Los Angeles basin alone holding a dozen codes within one metro.
What is an area code overlay?
An overlay assigns a new code to the same territory as an existing one instead of dividing the map. Existing numbers keep theirs; new lines get the new code; and everyone must dial ten digits even locally, because two numbers across the street can differ. Overlays are why 'what's your area code' no longer means 'where do you live' - and why states with one code today (907 Alaska, 302 Delaware) tend to gain their second as an overlay.
Which US states have only one area code?
Alaska (907), Delaware (302), Hawaii (808), Idaho (208 with 986 overlaid since 2017), Maine (207), Montana (406), New Hampshire (603), the Dakotas (701/605), Vermont (802), Wyoming (307) and West Virginia (304 with 681 overlaid 2009) - the single-code club is shrinking as overlays arrive, but the big-empty states hold out because population density, not geography, drives demand.
Can an area code tell you where a caller really is?
Less and less. The code fixes where a number was issued - the table's geography - but number portability lets a line keep its code after moving across the country, and VoIP services assign codes at will. The table remains the right tool for identifying an unfamiliar in-state code or checking an overlay; it is the wrong tool for trusting a caller's location.