| area_code | country | state | city | area_region | description | split_from | overlay | see |
| 201 | United States | New Jersey | Hackensack, Jersey City | Northeast | 973 | 551 | 1 | |
| 202 | United States | District Of Columbia | Washington | 1 | ||||
| 203 | United States | Connecticut | Bridgeport, New Haven | Fairfield and New Haven County | 860 | |||
| 204 | Canada | Manitoba | 1 | |||||
| 205 | United States | Alabama | Ashville, Birmingham, Butler, Jasper, Lincoln, | Central Alabama | Only Central. | 256, 334 | 1 | |
| 206 | United States | Washington | Bainbridge Island, Seattle | 253, 360, 425 | 564 | 1 | ||
| 207 | United States | Maine | ENTIRE STATE | 1 | ||||
| 208 | United States | Idaho | ENTIRE STATE | All | 1 | |||
| 209 | United States | California | Stockton | Central | 559 | 1 | ||
| 210 | United States | Texas | San Antonio | South | 830, 956 | 1 | ||
| 211 | United States | Nationwide | Information or Crisis number. | 1 | ||||
| 212 | United States | New York | Manhattan | Manhattan Burough. | 646, 917 | |||
| 213 | United States | California | Los Angeles | 310, 323, 626, 818 | ||||
| 214 | United States | Texas | Dallas | 469, 972 | 1 | |||
| 215 | United States | Pennsylvania | Philadelphia | Southeast | 267 | 1 | ||
| 216 | United States | Ohio | Cleveland | 1 | ||||
| 217 | United States | Illinois | Springfield | South Central | 1 | |||
| 218 | United States | Minnesota | Duluth | North | 1 | |||
| 219 | United States | Indiana | Gary | North | 574, 260 | 1 | ||
| 224 | United States | Illinois | Evanston, Northbrook, Waukegan | 847 | 1 | |||
| 225 | United States | Louisiana | Albany, Baton Rouge, Greensburg, New Roads, Vacherie | 504 | 1 | |||
| 226 | Canada | Ontario | Windsor | Southwest | 519 | 1 | ||
| 227 | United States | Maryland | postponed indefinitely | 1 | ||||
| 228 | United States | Mississippi | Biloxi, Gulfport | Coastal | 601 | 1 | ||
| 229 | United States | Georgia | Albany | Southwest | 912 | 478 | ||
| 231 | United States | Michigan | Alanson, Cheboygan, Muskegon, Traverse City | West | Northwestern portion of lower Peninsula | 1 | ||
| 234 | United States | Ohio | Akron, Canton | 330 | 1 | |||
| 239 | United States | Florida | Fort Myers, Monroe Station, Naples | Collier, Lee, Monroe Counties | Excludes the Keys. | 305 | ||
| 240 | United States | Maryland | Frederick, Gaithersburg, Silver Spring | West | 301 | 1 | ||
| 242 | Bahamas | 1 | ||||||
| 246 | Barbados | 1 | ||||||
| 248 | United States | Michigan | Pontiac | Oakland County | 810 | 947 | 1 | |
| 250 | Canada | British Colombia | 604 | |||||
| 251 | United States | Alabama | Evergreen, Jackson, Monroeville | South and Coastal | Mobile Phones. | 334 | 205, 256 | |
| 252 | United States | North Carolina | Cape Hatteras, Greenville, Rocky Mount | East | 919 | 1 | ||
| 253 | United States | Washington | Federal Way, Tacoma | South Tier of Tacoma. | 206 | 564 | 425 | |
| 254 | United States | Texas | Fort Worth, Stephenville, Waco | 817, 940 | ||||
| 256 | United States | Alabama | Florence, Huntsville | North and East | 205 | 334 | ||
| 260 | United States | Indiana | Fort Wayne | 219 | ||||
| 262 | United States | Wisconsin | Brookfield, Kenosha, Racine | Southeast. Kenosha, Ozaukee, Walworth, Waukesha counties. | 414 | 1 | ||
| 264 | Anguilla | 809 | 1 | |||||
| 267 | United States | Pennsylvania | Philadelphia | Southeast | 215 | 1 | ||
| 268 | Antigua | 809 | 1 | |||||
| 269 | United States | Michigan | Battle Creek, Hastings, Kalamazoo | Southwest | Sturgis to Lake Michigan | 616 | 1 | |
| 270 | United States | Kentucky | Bowling Green, Paducah | 502 | 1 | |||
| 276 | United States | Virginia | Bristol, Martinsville | South and Southwest | 540 | 1 | ||
| 278 | United States | Michigan | Overlay has been postponed. | 734 | 1 | |||
| 281 | United States | Texas | Houston Surroundings | 713 | 832 | 1 | ||
| 283 | United States | Ohio | Cincinnati | 513 | 1 | |||
| 284 | British Virgin Islands | 809 | 1 | |||||
| 301 | United States | Maryland | Camp Springs, Frederick | South and West. Prince George's County | 240 | |||
| 302 | United States | Delaware | ENTIRE STATE | 1 | ||||
| 303 | United States | Colorado | Denver | Central | Includes suburban areas | 720 | 970 | |
| 304 | United States | West Virginia | ENTIRE STATE | 1 | ||||
| 305 | United States | Florida | Key West, Miami | Southeast and Keys | 786, 954 | |||
| 306 | Canada | Saskatchewan | ||||||
| 307 | United States | Wyoming | Casper, Cheyenne, Gillette, Laramie | 1 | ||||
| 308 | United States | Nebraska | Central City, Grand Island, North Platte | West | 1 | |||
| 309 | United States | Illinois | Peoria | West Central | 1 | |||
| 310 | United States | California | Beverly Hills, West Hollywood, West Los Angeles | South | 562 | 424 | 1 | |
| 311 | United States | Reserved for special needs. | ||||||
| 312 | United States | Illinois | Downtown Chicago | 872 | 773 | |||
| 313 | United States | Michigan | Detroit | East | 679 | 734 | ||
| 314 | United States | Missouri | St. Louis | Southeast | 573, 636 | |||
| 315 | United States | New York | Auburn, Syracuse | North Central | 620 | 1 | ||
| 316 | United States | Kansas | Wichita | South | 1 | |||
| 317 | United States | Indiana | Franklin, Greenwood, Indianapolis | Central | 765 | |||
| 318 | United States | Louisiana | Alexandria, Ferriday, Shreveport | West | 337 | 1 | ||
| 319 | United States | Iowa | Birmingham, Cedar Rapids, Waterloo | East | 563 | 1 | ||
| 320 | United States | Minnesota | Saint Cloud | Central | 1 | |||
| 321 | United States | Florida | Cape Canaveral, Cocoa Beach, Melbourne | Brevard County | 407 | 1 | ||
| 323 | United States | California | Los Angeles immediate surroundings, Huntington Park, Hollywood | South | 213 | 1 | ||
| 325 | United States | Texas | Abilene, Junction, San Angelo | Central | 915 | 1 | ||
| 330 | United States | Ohio | Akron, Canton, New Philadelphia, Youngstown | East | 234 | 1 | ||
| 331 | United States | Illinois | Suburbs of Chicago | Northeast | 630 | 708 | ||
| 334 | United States | Alabama | Montgomery | Lower Alabama | Used for mobile phones. | 251 | 205 | 256 |
| 336 | United States | North Carolina | Asheboro, Greensboro, Lexington, Winston-Salem | North Central | 910 | 1 | ||
| 337 | United States | Louisiana | Lafayette | Southwest | 318 | 1 | ||
| 339 | United States | Massachusetts | Boston suburbs, Burlington, Lynn | 617, 508 | 781 | 1 | ||
| 341 | United States | California | Cancelled | 1 | ||||
| 345 | Cayman Islands | |||||||
| 347 | United States | New York | New York City Buroughs | Used primarily for mobile phones, pagers, and voicemail. Some landlines now use this code. | 1 | |||
| 351 | United States | Massachusetts | Concord, Lowell | 978 | 1 | |||
| 352 | United States | Florida | Gainesville, Ocala | North | 904 | 1 | ||
| 360 | United States | Washington | Bellingham, Olympia, Vancouver | West | 206 | 564 | 206, 253, 360 | |
| 361 | United States | Texas | Corpus Christi | South | 512 | 1 | ||
| 369 | United States | California | North Coastal, Solano County | 1 | ||||
| 380 | United States | Ohio | Columbus | Not yet in use | 1 | |||
| 385 | United States | Utah | Salt Lake City, | North | ON HOLD | 801 | 1 | |
| 386 | United States | Florida | Jasper, Daytona Beach, Orange City | North Central | 904 | 1 | ||
| 401 | United States | Rhode Island | ENTIRE STATE | 1 | ||||
| 402 | United States | Nebraska | Lincoln, Omaha, South Sioux City | East | 1 | |||
| 403 | Canada | Alberta | Edmonton, Calgary | South | 780, 867 | |||
| 404 | United States | Georgia | Atlanta | North | 770 | 678 | 1 | |
| 405 | United States | Oklahoma | Hennessey, Midwest City, Oklahoma City | South and West | 580 | |||
| 406 | United States | Montana | ENTIRE STATE | 1 | ||||
| 407 | United States | Florida | Orlando | Central | 1 | |||
| 408 | United States | California | Central Coastal | 1 | ||||
| 409 | United States | Texas | Southeast | 1 | ||||
| 410 | United States | Maryland | East | 1 | ||||
| 412 | United States | Pennsylvania | Pittsburgh | 1 | ||||
| 413 | United States | Massachusetts | West | 1 | ||||
| 415 | United States | California | San Francisco | 1 | ||||
| 417 | United States | Missouri | Southwest | 1 | ||||
| 419 | United States | Ohio | Northwest | 1 | ||||
| 423 | United States | Tennessee | East | 1 | ||||
| 424 | United States | California | 1 | |||||
| 425 | United States | Washington | Seattle Suburbs | East Suburbs | 1 | |||
| 430 | United States | Texas | 1 | |||||
| 432 | United States | Texas | 1 | |||||
| 434 | United States | Virginia | 1 | |||||
| 435 | United States | Utah | 1 | |||||
| 440 | United States | Ohio | Northeast | 1 | ||||
| 442 | United States | California | 1 | |||||
| 443 | United States | Maryland | 1 | |||||
| 445 | United States | Pennsylvania | 1 | |||||
| 464 | United States | Illinois | 1 | |||||
| 469 | United States | Texas | 1 | |||||
| 470 | United States | Georgia | 1 | |||||
| 475 | United States | Connecticut | 1 | |||||
| 478 | United States | Georgia | 1 | |||||
| 479 | United States | Arkansas | 1 | |||||
| 480 | United States | Arizona | Phoenix | East Valley | 1 | |||
| 484 | United States | Pennsylvania | 1 | |||||
| 501 | United States | Arkansas | 1 | |||||
| 502 | United States | Kentucky | West | 1 | ||||
| 503 | United States | Oregon | PortLand | Tri-cities | 1 | |||
| 504 | United States | Louisiana | East | 1 | ||||
| 505 | United States | New Mexico | 1 | |||||
| 507 | United States | Minnesota | South | 1 | ||||
| 508 | United States | Massachusetts | East | 1 | ||||
| 509 | United States | Washington | East | 1 | ||||
| 510 | United States | California | East SF Bay Area | 1 | ||||
| 512 | United States | Texas | South | 1 | ||||
| 513 | United States | Ohio | Southwest | 1 | ||||
| 515 | United States | Iowa | Central | 1 | ||||
| 516 | United States | New York | Nassau County | 1 | ||||
| 517 | United States | Michigan | Central | 1 | ||||
| 518 | United States | New York | Northeast | 1 | ||||
| 520 | United States | Arizona | 1 | |||||
| 530 | United States | California | North | 1 | ||||
| 540 | United States | Virginia | 1 | |||||
| 541 | United States | Oregon | 1 | |||||
| 551 | United States | New Jersey | 1 | |||||
| 557 | United States | Missouri | 1 | |||||
| 559 | United States | California | Central | 1 | ||||
| 561 | United States | Florida | Palm Beach | 1 | ||||
| 562 | United States | California | Los Angeles | 1 | ||||
| 563 | United States | Iowa | 1 | |||||
| 564 | United States | Washington | Overlay | 1 | ||||
| 567 | United States | Ohio | 1 | |||||
| 570 | United States | Pennsylvania | East Central | 1 | ||||
| 571 | United States | Virginia | 1 | |||||
| 573 | United States | Missouri | 1 | |||||
| 575 | United States | New Mexico | 1 | |||||
| 580 | United States | Oklahoma | 1 | |||||
| 585 | United States | New York | 1 | |||||
| 586 | United States | Michigan | 1 | |||||
| 598 | United States | Massachusetts | East | 1 | ||||
| 601 | United States | Mississippi | 1 | |||||
| 602 | United States | Arizona | Phoenix | 1 | ||||
| 603 | United States | New Hampshire | 1 | |||||
| 605 | United States | South Dakota | 1 | |||||
| 606 | United States | Kentucky | East | 1 | ||||
| 607 | United States | New York | South Central | 1 | ||||
| 608 | United States | Wisconsin | Southwest | 1 | ||||
| 609 | United States | New Jersey | South | 1 | ||||
| 610 | United States | Pennsylvania | 1 | |||||
| 612 | United States | Minnesota | Minneapolis | 1 | ||||
| 614 | United States | Ohio | Columbus | 1 | ||||
| 615 | United States | Tennessee | Middle and West | 1 | ||||
| 616 | United States | Michigan | West | 1 | ||||
| 617 | United States | Massachusetts | East | 1 | ||||
| 618 | United States | Illinois | South | 1 | ||||
| 619 | United States | California | San Diego | South Coastal | 1 | |||
| 620 | United States | Kansas | South | 1 | ||||
| 623 | United States | Arizona | Phoenix | West Valley | 1 | |||
| 626 | United States | California | Pasadena | San Gabriel Valley | 1 | |||
| 627 | United States | California | North Coastal | 1 | ||||
| 628 | United States | California | 1 | |||||
| 630 | United States | Illinois | Chicago Suburbs | 1 | ||||
| 631 | United States | New York | Suffolk County | 1 | ||||
| 636 | United States | Missouri | 1 | |||||
| 641 | United States | Iowa | 1 | |||||
| 646 | United States | New York | Manhattan | 1 | ||||
| 650 | United States | California | Oakland | West Bay Area | 1 | |||
| 651 | United States | Minnesota | St. Paul | 1 | ||||
| 657 | United States | California | 1 | |||||
| 659 | United States | Alabama | 1 | |||||
| 660 | United States | Missouri | 1 | |||||
| 661 | United States | California | South Central | 1 | ||||
| 667 | United States | Maryland | 1 | |||||
| 669 | United States | California | 1 | |||||
| 678 | United States | Georgia | 1 | |||||
| 679 | United States | Michigan | 1 | |||||
| 682 | United States | Texas | 1 | |||||
| 689 | United States | Florida | 1 | |||||
| 701 | United States | North Dakota | 1 | |||||
| 702 | United States | Nevada | Las Vegas, Henderso, Boulder City | Clark County | 1 | |||
| 703 | United States | Virginia | North and West | 1 | ||||
| 704 | United States | North Carolina | West | 1 | ||||
| 706 | United States | Georgia | North | 1 | ||||
| 707 | United States | California | North Coastal | 1 | ||||
| 708 | United States | Illinois | Northeast | 1 | ||||
| 712 | United States | Iowa | West | 1 | ||||
| 713 | United States | Texas | Houston | 1 | ||||
| 714 | United States | California | Orange County | 1 | ||||
| 715 | United States | Wisconsin | North | 1 | ||||
| 716 | United States | New York | West | 1 | ||||
| 717 | United States | Pennsylvania | East Central | 1 | ||||
| 718 | United States | New York | New York City | ExcludesManhattan | 1 | |||
| 719 | United States | Colorado | South and East | 1 | ||||
| 720 | United States | Colorado | Denver | Includes suburban areas | 1 | |||
| 724 | United States | Pennsylvania | West | 1 | ||||
| 727 | United States | Florida | St. Petersburg | 1 | ||||
| 731 | United States | Tennessee | 1 | |||||
| 732 | United States | New Jersey | Central | 1 | ||||
| 734 | United States | Michigan | Ann Arbor and Ypsilanti | 1 | ||||
| 737 | United States | Texas | 1 | |||||
| 740 | United States | Ohio | Southeast | 1 | ||||
| 747 | United States | California | 1 | |||||
| 752 | United States | California | 1 | |||||
| 754 | United States | Florida | 1 | |||||
| 757 | United States | Virginia | 1 | |||||
| 760 | United States | California | San Diego | 1 | ||||
| 763 | United States | Minnesota | Minneapolis Suburbs | 1 | ||||
| 764 | United States | California | 1 | |||||
| 765 | United States | Indiana | Indianapolis Surroundings | 1 | ||||
| 770 | United States | Georgia | 1 | |||||
| 773 | United States | Illinois | Chicago | 1 | ||||
| 774 | United States | Massachusetts | 1 | |||||
| 775 | United States | Nevada | 1 | |||||
| 781 | United States | Massachusetts | 1 | |||||
| 785 | United States | Kansas | North | 1 | ||||
| 786 | United States | Florida | 1 | |||||
| 800 | United States | Toll-Free Calling | 1 | |||||
| 801 | United States | Utah | Salt Lake City, Provo | 1 | ||||
| 802 | United States | Vermont | 1 | |||||
| 803 | United States | South Carolina | 1 | |||||
| 804 | United States | Virginia | Southeast | 1 | ||||
| 805 | United States | California | South Central | 1 | ||||
| 806 | United States | Texas | North Panhandle | 1 | ||||
| 808 | United States | Hawaii | 1 | |||||
| 810 | United States | Michigan | North | 1 | ||||
| 812 | United States | Indiana | South | 1 | ||||
| 813 | United States | Florida | Tampa | Greater Tampa | 1 | |||
| 814 | United States | Pennsylvania | West Central | 1 | ||||
| 815 | United States | Illinois | North | 1 | ||||
| 816 | United States | Missouri | Northwest | 1 | ||||
| 817 | United States | Texas | North Central | 1 | ||||
| 818 | United States | California | Burbank, Glendale, etc. | San Fernando Valley | San Fernando Valley lies under Los Angeles City limits. | 1 | ||
| 828 | United States | North Carolina | 1 | |||||
| 830 | United States | Texas | South | Near to San Antonio | 1 | |||
| 831 | United States | California | Central Coastal | 1 | ||||
| 832 | United States | Texas | Houston Surroundings | 1 | ||||
| 835 | United States | Pennsylvania | 1 | |||||
| 843 | United States | South Carolina | 1 | |||||
| 845 | United States | New York | 1 | |||||
| 847 | United States | Illinois | Chicago Suburbs | 1 | ||||
| 848 | United States | New Jersey | 1 | |||||
| 850 | United States | Florida | North and Panhandle | 1 | ||||
| 856 | United States | New Jersey | South | 1 | ||||
| 857 | United States | Massachusetts | 1 | |||||
| 858 | United States | California | San Diego | South Coastal | 1 | |||
| 859 | United States | Kentucky | 1 | |||||
| 860 | United States | Connecticut | 1 | |||||
| 862 | United States | New Jersey | 1 | |||||
| 863 | United States | Florida | South Central | 1 | ||||
| 864 | United States | South Carolina | 1 | |||||
| 865 | United States | Tennessee | 1 | |||||
| 870 | United States | Arkansas | 1 | |||||
| 872 | United States | Illinois | 1 | |||||
| 877 | United States | Toll-Free Calling | 1 | |||||
| 878 | United States | Pennsylvania | 1 | |||||
| 888 | United States | Toll-Free Calling | 1 | |||||
| 901 | United States | Tennessee | West | 1 | ||||
| 903 | United States | Texas | Northeast | 1 | ||||
| 904 | United States | Florida | Northeast | 1 | ||||
| 906 | United States | Michigan | Upper North | 1 | ||||
| 907 | United States | Alaska | 1 | |||||
| 908 | United States | New Jersey | Central | 1 | ||||
| 909 | United States | California | Riverside | San Bernardino | 1 | |||
| 910 | United States | North Carolina | 1 | |||||
| 912 | United States | Georgia | South | 1 | ||||
| 913 | United States | Kansas | Northeast | 1 | ||||
| 914 | United States | New York | South | 1 | ||||
| 915 | United States | Texas | West | 1 | ||||
| 916 | United States | California | Sacremento | 1 | ||||
| 917 | United States | New York | New York City | 1 | ||||
| 918 | United States | Oklahoma | Northeast | 1 | ||||
| 919 | United States | North Carolina | East | 1 | ||||
| 920 | United States | Wisconsin | 1 | |||||
| 925 | United States | California | San Francisco | Bay Area | 1 | |||
| 928 | United States | Arizona | 1 | |||||
| 931 | United States | Tennessee | 1 | |||||
| 935 | United States | California | San Diego | South Coastal | 1 | |||
| 936 | United States | Texas | South | 1 | ||||
| 937 | United States | Ohio | Dayton | Southwest | 1 | |||
| 940 | United States | Texas | Fort Worth | 1 | ||||
| 941 | United States | Florida | Cape Coral Area | 1 | ||||
| 947 | United States | Michigan | 1 | |||||
| 949 | United States | California | Orange County | 1 | ||||
| 951 | United States | California | 1 | |||||
| 952 | United States | Minnesota | Minneapolis Suburbs | 1 | ||||
| 954 | United States | Florida | Fort Lauderdale | Greater Fort Lauderdale | 1 | |||
| 956 | United States | Texas | Laredo and Brownsville | 1 | ||||
| 959 | United States | Connecticut | 1 | |||||
| 970 | United States | Colorado | North and West | 1 | ||||
| 971 | United States | Oregon | 1 | |||||
| 972 | United States | Texas | Dallas | 1 | ||||
| 973 | United States | New Jersey | North | 1 | ||||
| 975 | United States | Missouri | 1 | |||||
| 978 | United States | Massachusetts | 1 | |||||
| 979 | United States | Texas | 1 | |||||
| 980 | United States | North Carolina | 1 | |||||
| 984 | United States | North Carolina | 1 | |||||
| 985 | United States | Louisiana | 1 | |||||
| 989 | United States | Michigan | 1 | |||||