The area code as listed below may change. Each state may have
more than one telephone area code. Some area codes may be confined within only
parts of a city within a state.
011 International Access 200 Service access code 201 New Jersey - NorthEast 202 District Of Columbia 203 Connecticut 204 Manitoba 205 Alabama - Birmingham/Central Alabama 206 Washington - Seattle 207 Maine 208 Idaho 209 California - Central 210 Texas - San Antonio 211 Coin Phone Refunds 212 New York - Manhattan 213 California - Los Angeles 214 Texas - Dallas 215 Pennsylvania - SouthEast 216 Ohio - Cleveland 217 Illinois - South Central 218 Minnesota - Northern 219 Indiana - Northern 224 Illinois 225 Louisiana 227 Maryland 228 Mississippi 229 Georgia - (split from 912) 231 Michigan 234 Ohio (overlay 330) 239 Florida 240 Maryland 242 Bahamas-Carib 246 Barbados-Carib 248 Michigan - Oakland Cty 250 British Columbia 251 Alabama 252 North Carolina 253 Washington - Tacoma 254 Texas - Ft. Worth 256 Alabama - Huntsville/North Alabama 260 Indiana 262 Wisconsin 264 Anguilla 267 Pennsylvania (overlay 215) 268 Antigua/Barbuda-Carib 269 Michigan 270 Kentucky 276 Virginia 278 Michigan overlay suspended 281 Texas - Houston Area 283 Ohio 284 British V.I.-Carib 289 Ontario 300 Service Access Code 301 Maryland - Southern&Western 302 Delaware 303 Colorado - Denver & suburban 304 West Virginia 305 Florida - SouthEast 306 Saskatchewan 307 Wyoming 308 Nebraska - Western 309 Illinois - West Central 310 California - Los Angeles 311 Reserved Special Function 312 Illinois - Chicago 313 Michigan - Eastern 314 Missouri - Eastern 315 New York - North Central 316 Kansas-Wichita area 317 Indiana - Central 318 Louisiana - Western 319 Iowa - Eastern 320 Minnesota 321 Florida Space Coast (Melbourne) 323 California - Los Angeles 325 Texas 330 Ohio - Eastern 331 Illinois overlay deferred 334 Alabama - Montgomery/Mobile/Lower Alabama 336 North Carolina 337 Louisiana 339 Massachusetts 340 US Virgin Islands 341 California 345 Cayman Islands 347 New York - NYC-not Mnhtn (split from 718) 351 Massachusetts 352 Florida - North 360 Washington - Western 361 Texas - (split from 512) 369 California - (split from 707) 380 Ohio 385 Utah 386 Florida 400 Service Access Code 401 Rhode Island 402 Nebraska - Eastern 403 Alberta , Southern 404 Georgia - Metro Atlanta 405 Oklahoma- Southern&Western 406 Montana 407 Florida - Greater Orlando 408 California - Central Coastal 409 Texas - SouthEast 410 Maryland - Eastern 411 Directory Services 412 Pennsylvania - Pittsburgh 413 Massachusetts - Western 414 Wisconsin - Eastern 415 California - San Francisco 416 Ontario - City of Toronto 417 Missouri - SouthWest 418 Quebec - NorthEast 419 Ohio - NorthWest 423 Tennessee - Eastern 424 California (overlay 310) 425 Washington - Seattle east suburbs 430 Texas 432 Texas 434 Virginia 435 Utah 438 Quebec 440 Ohio - Northeast 441 Bermuda-Carib 442 California 443 Maryland 445 Pennsylvania 450 Quebec - Laval (Montreal North) 456 Inbound International 464 Illinois overlay deferred 469 Texas 470 Georgia 473 Grenada-Carib 475 Connecticut - (overlay 203) 478 Georgia 479 Arkansas 480 Arizona - Phoenix. East Valley 484 Pennsylvania (overlay 610) 500 Personal Communication Svcs 501 Arkansas 502 Kentucky - Western 503 Oregon - Portland tri-metro 504 Louisiana - Eastern 505 New Mexico 506 New Brunswick 507 Minnesota - Southern 508 Massachusetts - Eastern 509 Washington - Eastern 510 California - East Bay Area 512 Texas - Southern 513 Ohio - SouthWest 514 Quebec - Montreal 515 Iowa - Central 516 New York - Nassau County LI 517 Michigan - Central 518 New York - NorthEast 519 Ontario - SouthWest 520 Arizona 530 California - Northern 540 Virginia 541 Oregon 551 New Jersey 555 Not Available 557 Missouri 559 California - Central 561 Florida - Greater Palm Beach 562 California - Los Angeles 563 Iowa 564 Washington - (overlay 360) 567 Ohio 570 Pennsylvania - (split 717) 571 Virginia 573 Missouri 574 Indiana 575 New Mexico 580 Oklahoma 585 New York 586 Michigan overlay 600 Canada/Services 601 Mississippi 602 Arizona 603 New Hampshire 604 British Columbia 605 South Dakota 606 Kentucky - Eastern 607 New York - South Central 608 Wisconsin - SouthWest 609 New Jersey - Southern 610 Pennsylvania 611 Repair Service |
612 Minnesota -
Minneapolis 613 Ontario - SouthEast 614 Ohio - Columbus Area 615 Tennessee - Middle/Western 616 Michigan - Western 617 Massachusetts - Eastern 618 Illinois - Southern 619 California - San Diego, S.Cal 620 Kansas - Southern 623 Arizona - Phoenix. West Valley 626 California - Pas./San Gabr.Vly 627 California - (split from 707) 628 California 630 Illinois - Chicago suburbs 631 New York - Suffolk County LI 636 Missouri 641 Iowa 646 New York - Manhattan (split from 212) 647 Ontario 649 Turks & Caicos 650 California - West Bay Area 651 Minnesota - St. Paul 659 Alabama 657 California 660 Missouri 661 California - (split from 805) 662 Mississippi 664 Montserrat-Carib 667 Maryland 669 California 670 CNMI-Mariana Islands 671 Guam 678 Georgia 679 Michigan overlay suspended 682 Texas 689 Florida 700 Service Varies by LD Carrier 701 North Dakota 702 Nevada - Clark County 703 Virginia - Northern & Western 704 North Carolina - Western 705 Ontario - Northern 706 Georgia - Northern 707 California - North Coastal 708 Illinois - NorthEast 709 Newfndlnd, Labradr 710 Gov Emer Telecom Svc 711 Special Function 712 Iowa - Western 713 Texas - Houston 714 California - Orange County 715 Wisconsin - Northern 716 New York - Western 717 Pennsylvania - East Central 718 New York - NYC except Mnhtn 719 Colorado - Southern & Eastern 720 Colorado - Denver & suburban 724 Pennsylvania - Western 727 Florida Greater St Petersburg 731 Tennessee 732 New Jersey - Central 734 Michigan - Ann Arbor/Ypsilanti 737 Texas 740 Ohio - SouthEast 747 California 752 California 754 Florida 757 Virginia 758 St. Lucia-Carib 760 California - San Diego 763 Minnesota - Minneapolis Suburbs 764 California 765 Indiana - Outside Indianapolis 767 Dominica 770 Georgia 772 Florida 773 Illinois - Chicago 774 Massachusetts 775 Nevada 778 British Columbia 780 Alberta, Edmonton & North 781 Massachusetts 784 St. Vincent/Grenadines 785 Kansas - Northern 786 Florida - Overlay the 305 area 787 Puerto Rico-Carib 800 Toll-Free 801 Utah 802 Vermont 803 South Carolina 804 Virginia - SouthEast 805 California - SouthCentral 806 Texas - North Panhandle 807 Ontario - NorthWest 808 Hawaii 809 Caribbean Islands 810 Michigan - Northern 811 Special Function 812 Indiana - Southern 813 Florida - Tampa area 814 Pennsylvania - West Central 815 Illinois - Northern 816 Missouri - NorthWest 817 Texas - North Central 818 California - SF Valley, LA area 819 Quebec - Eastern 822 Future Toll-Free Svc. 828 North Carolina 830 Texas -South, near San Antonio 831 California, Central Coastal 832 Texas, Houston area 833 Future Toll-Free Svc. 835 Pennsylvania 843 South Carolina 844 Future Toll-Free Svc. 845 New York 847 Illinois - Chicago suburbs 848 New Jersey 850 Florida panhandle 855 Toll-Free Svc. 856 New Jersey - Southern 857 Massachusetts 858 California - (split from 619) 859 Kentucky 860 Connecticut 862 New Jersey 863 Florida - South Central 864 South Carolina 865 Tennessee 866 Toll-Free Svc. 867 Yukon/N.W.TerrÍs 868 Trinidad and Tobago-Carib 869 St.Kitts and Nevis-Carib 870 Arkansas 872 Illinois overlay deferred 876 Jamaica 877 Toll-Free 878 Pennsylvania 880 Paid 800 Service 881 Paid 888 Service 882 Paid 877 Service 888 Toll-Free 900 Value Added Info Svc Code 901 Tennessee - Western 902 Pr Edwrd Is, Nva Sctia 903 Texas - NorthEast 904 Florida - Northeast 905 Greater Toronto Area, except Toronto 906 Michigan - Upper North 907 Alaska 908 New Jersey - Central 909 California - Riverside&S.Bern 910 North Carolina 911 Emergency Services 912 Georgia - Southern 913 Kansas - NorthEast 914 New York - Southern 915 Texas - Western 916 California - Sacramento 917 New York City 918 Oklahoma - NorthEast 919 North Carolina - Eastern 920 Wisconsin 925 California - S.F.Bay area 928 Arizona 931 Tennessee 935 California - (split from 619) 936 Texas - (split from 409) 937 Ohio - Dayton, SW Ohio 939 Puerto Rico 940 Texas - Ft. Worth 941 Florida - Cape Coral area 947 Michigan 949 California - Orange County 951 California 952 Minnesota - Minneapolis Suburbs 954 Florida - Greater Ft Lauderdale 956 Texas - Laredo/Brownsville 959 Connecticut - (overlay 860) 970 Colorado - Northern & Western 971 Oregon 972 Texas - Dallas 973 New Jersey - Northern 975 Missouri 978 Massachusetts 979 Texas 980 North Carolina 984 North Carolina 985 Louisiana 989 Michigan |
For a listing of US area code by State names
205 Alabama -
Birmingham/Central Alabama 251 Alabama 659 Alabama 256 Alabama - Huntsville/North Alabama 334 Alabama - Montgomery/Mobile/Lower Alabama 907 Alaska 403 Alberta , Southern 780 Alberta, Edmonton & North 264 Anguilla 268 Antigua/Barbuda-Carib 520 Arizona 928 Arizona 480 Arizona - Phoenix. East Valley 602 Arizona - Phoenix 623 Arizona - Phoenix. West Valley 501 Arkansas 479 Arkansas 870 Arkansas 242 Bahamas-Carib 246 Barbados-Carib 441 Bermuda-Carib 250 British Columbia 604 British Columbia 778 British Columbia 284 British V.I.-Carib 341 California 442 California 628 California 657 California 669 California 747 California 752 California 764 California 951 California 209 California - Central 559 California - Central 408 California - Central Coastal 831 California - Central Coastal 510 California - East Bay Area 213 California - Los Angeles 310 California - Los Angeles 424 California - (overlay 310) 323 California - Los Angeles 562 California - Los Angeles 707 California - North Coastal 369 California - (split from 707) 627 California - (split from 707) 530 California - Northern 714 California - Orange County 949 California - Orange County 626 California - Pas./San Gabr.Vly 909 California - Riverside&S.Bern 916 California - Sacramento 760 California - San Diego 619 California - San Diego, S.Cal 858 California - (split from 619) 935 California - (split from 619) 818 California - SF Valley, LA area 415 California - San Francisco 925 California - S.F.Bay area 661 California - (split from 805) 805 California - SouthCentral 650 California - West Bay Area 600 Canada/Services 809 Caribbean Islands 345 Cayman Islands 670 CNMI-Mariana Islands 211 Coin Phone Refunds 720 Colorado - Denver & suburban 970 Colorado - Northern & Western 303 Colorado - Denver & suburban 719 Colorado - Southern & Eastern 203 Connecticut 475 Connecticut - (overlay 203) 860 Connecticut 959 Connecticut - (overlay 860) 302 Delaware 411 Directory Services 202 District Of Columbia 767 Dominica 911 Emergency Services 239 Florida 386 Florida 689 Florida 754 Florida 941 Florida - Cape Coral area 954 Florida - Greater Ft Lauderdale 561 Florida - Greater Palm Beach 407 Florida - Greater Orlando 727 Florida - Greater St Petersburg 352 Florida - North 904 Florida - Northeast 850 Florida panhandle 786 Florida - Overlay the 305 area 863 Florida - South Central 305 Florida - SouthEast 321 Florida Space Coast (Melbourne) 813 Florida - Tampa area 470 Georgia 478 Georgia 770 Georgia 678 Georgia 404 Georgia - Metro Atlanta 706 Georgia - Northern 912 Georgia - Southern 229 Georgia - (split from 912) 710 Gov Emer Telecom Svc 473 Grenada-Carib 671 Guam 808 Hawaii 208 Idaho 312 Illinois - Chicago 773 Illinois - Chicago 630 Illinois - Chicago suburbs 847 Illinois - Chicago suburbs 708 Illinois - NorthEast 815 Illinois - Northern 224 Illinois 331 Illinois overlay deferred 464 Illinois overlay deferred 872 Illinois overlay deferred 217 Illinois - South Central 618 Illinois - Southern 309 Illinois - West Central 260 Indiana 317 Indiana - Central 219 Indiana - Northern 765 Indiana - Outside Indianapolis 812 Indiana - Southern 563 Iowa 641 Iowa 515 Iowa - Central 319 Iowa - Eastern 712 Iowa - Western 876 Jamaica 620 Kansas - Southern 785 Kansas - Northern 913 Kansas - NorthEast 316 Kansas-Wichita area 270 Kentucky 859 Kentucky 606 Kentucky - Eastern 502 Kentucky - Western 225 Louisiana 337 Louisiana 985 Louisiana 504 Louisiana - Eastern 318 Louisiana - Western 207 Maine 204 Manitoba 227 Maryland 240 Maryland 443 Maryland 667 Maryland 410 Maryland - Eastern 301 Maryland - Southern&Western 339 Massachusetts 351 Massachusetts 774 Massachusetts 781 Massachusetts 857 Massachusetts 978 Massachusetts 508 Massachusetts - Eastern 617 Massachusetts - Eastern 413 Massachusetts - Western 231 Michigan 269 Michigan 989 Michigan 734 Michigan - Ann Arbor/Ypsilanti 517 Michigan - Central 313 Michigan - Eastern 810 Michigan - Northern 248 Michigan - Oakland Cty 278 Michigan overlay suspended 586 Michigan overlay 679 Michigan overlay suspended 947 Michigan 906 Michigan - Upper North 616 Michigan - Western 320 Minnesota 612 Minnesota - Minneapolis 763 Minnesota - Minneapolis Suburbs 952 Minnesota - Minneapolis Suburbs 218 Minnesota - Northern 507 Minnesota - Southern 651 Minnesota - St. Paul 228 Mississippi 601 Mississippi 557 Missouri |
573 Missouri 636 Missouri 660 Missouri 975 Missouri 314 Missouri - Eastern 816 Missouri - NorthWest 417 Missouri - SouthWest 664 Montserrat-Carib 406 Montana 402 Nebraska - Eastern 308 Nebraska - Western 775 Nevada 702 Nevada - Clark County 506 New Brunswick 603 New Hampshire 551 New Jersey 848 New Jersey 862 New Jersey 732 New Jersey - Central 908 New Jersey - Central 201 New Jersey - NorthEast 973 New Jersey - Northern 609 New Jersey - Southern 856 New Jersey - Southern 505 New Mexico 575 New Mexico 585 New York 845 New York 917 New York City 516 New York - Nassau County LI 212 New York - Manhattan 646 New York - Manhattan (split from 212) 315 New York - North Central 518 New York - NorthEast 347 New York - NYC-not Mnhtn (split from 718) 718 New York - NYC except Mnhtn 607 New York - South Central 914 New York - Southern 631 New York - Suffolk County LI 716 New York - Western 709 Newfndlnd, Labradr 252 North Carolina 336 North Carolina 828 North Carolina 910 North Carolina 980 North Carolina 984 North Carolina 919 North Carolina - Eastern 704 North Carolina - Western 701 North Dakota 283 Ohio 380 Ohio 567 Ohio 216 Ohio - Cleveland 614 Ohio - Columbus Area 937 Ohio - Dayton, SW Ohio 330 Ohio - Eastern 234 Ohio (overlay 330) 440 Ohio - Northeast 419 Ohio - NorthWest 740 Ohio - SouthEast 513 Ohio - SouthWest 580 Oklahoma 918 Oklahoma - NorthEast 405 Oklahoma- Southern & Western 905 Greater Toronto Area, except Toronto 289 Ontario 647 Ontario 705 Ontario - Northern 807 Ontario - NorthWest 613 Ontario - SouthEast 519 Ontario - SouthWest 416 Ontario - City of Toronto 503 Oregon - Portland tri-metro 541 Oregon 971 Oregon 445 Pennsylvania 610 Pennsylvania 835 Pennsylvania 878 Pennsylvania 484 Pennsylvania (overlay 610) 717 Pennsylvania - East Central 570 Pennsylvania - (split 717) 412 Pennsylvania - Pittsburgh 215 Pennsylvania - SouthEast 267 Pennsylvania (overlay 215) 814 Pennsylvania - West Central 724 Pennsylvania - Western 902 Pr Edwrd Is, Nva Sctia 787 Puerto Rico - Carib 939 Puerto Rico 438 Quebec 450 Quebec-Laval (Montreal North) 819 Quebec - Eastern 418 Quebec - NorthEast 514 Quebec, Montreal 401 Rhode Island 306 Saskatchewan 803 South Carolina 843 South Carolina 864 South Carolina 605 South Dakota 869 St. Kitts and Nevis-Carib 758 St. Lucia-Carib 784 St. Vincent/Grenadines 731 Tennessee 865 Tennessee 931 Tennessee 423 Tennessee - Eastern 615 Tennessee - Middle/Western 901 Tennessee - Western 325 Texas 361 Texas - (split from 512) 430 Texas 432 Texas 469 Texas 682 Texas 737 Texas 979 Texas 214 Texas - Dallas 972 Texas - Dallas 254 Texas - Ft. Worth 940 Texas - Ft. Worth 713 Texas - Houston 281 Texas - Houston Area 832 Texas - Houston area 956 Texas - Laredo/Brownsville 817 Texas - North Central 806 Texas - North Panhandle 903 Texas - NorthEast 210 Texas - San Antonio 830 Texas - South, near San Antonio 409 Texas - SouthEast 936 Texas - (split from 409) 512 Texas - Southern 915 Texas - Western 868 Trinidad and Tobago-Carib 649 Turks & Caicos 340 US Virgin Islands 385 Utah 435 Utah 801 Utah 802 Vermont 276 Virginia 434 Virginia 540 Virginia 571 Virginia 757 Virginia 703 Virginia - Northern & Western 804 Virginia - SouthEast 509 Washington - Eastern 206 Washington - Seattle 425 Washington - Seattle east suburbs 253 Washington - Tacoma 360 Washington - Western 564 Washington - (overlay 360) 304 West Virginia 262 Wisconsin 920 Wisconsin 414 Wisconsin - Eastern 715 Wisconsin - Northern 608 Wisconsin - SouthWest 307 Wyoming 867 Yukon/N.W.Terr´s 822 Future Toll-Free Svc. 833 Future Toll-Free Svc. 844 Future Toll-Free Svc. 855 Future Toll-Free Svc. 866 Future Toll-Free Svc. 456 Inbound International 011 International Access 555 Not Available 880 Paid 800 Service 881 Paid 888 Service 882 Paid 877 Service 500 Personal Communication Svcs 611 Repair Service 311 Reserved Special Function 200 Service access code 300 Service Access Code 400 Service Access Code 700 Service Varies by LD Carrier 711 Special Function 811 Special Function 800 Toll-Free Calling 877 Toll-Free Calling 888 Toll-Free Calling 900 Value Added Info Svc Code |
When a area code split takes place, some of the prefixes remain with the old area code and some move to the new area code. Where can that information be found?
When a new area code is assigned, NANPA issues a press release that provides an overview of how the new code will be used. If the new area code will be used for a split, and if the list of prefixes is available, it will be included in the NANPA press release. Check the "Press Releases" section of the web site. Details of each split, once finalized, are included in a planning letter on our web site. The planning letter typically contains prefix lists, maps, dialing plans, and key dates. Check the "Planning Letters" section of the web site.
With all of the area code splits that happen every year, how can phone number databases be kept up to date?
Some companies have aggregated split-related area code and prefix information to assist in updating phone number databases. One example is Telcordia's ACSED product, described at www.trainfo.com.
Who publishes LATA maps?
LATA maps are available from several vendors. One way to identify possible sources is to search the internet using the key words "LATA maps".
What is area code 700 used for?
Area code 700 was assigned in 1983 on the eve of the introduction of long distance competition in the US. The intent was that interexchange carriers could use 700 numbers to implement new services quickly. When a 700 number is dialed, the local exchange carrier processing the call routes it to the presubscribed interexchange carrier, unless the caller has overridden presubscription by dialing 101XXXX before the number. Thus each interexchange carrier has access to all 7.92 million 700 numbers. 700 numbers are different from all other North American Numbering Plan numbers because the destinations are not unique, and, in fact, depend on the network the caller has selected.
What are area codes 880, 881, and 882 used for?
These codes provide a way to extend toll-free calling beyond the borders of the country in which the party paying for the calls resides. These codes have been used primarily to allow Caribbean callers to reach toll free numbers in the US. With this arrangement, the caller pays for the international segment of the call (to the US gateway), and the called party pays for the remainder. In theory, this concept can be implemented between any of the countries sharing the NANP.
How does NANPA decide who is entitled to the assignment of a NANP numbering resource; e.g., central office code, carrier identification code?
NANPA follows assignment guidelines developed by the industry. These guidelines specify who is entitled to an assignment, how to apply, and what obligations the assignee must meet to retain the assignment. The guidelines and applications forms may be found on the Alliance for Telecommunications Industry Solutions (ATIS) web site. The URL is http://www.atis.org/atis/clc/inc/incdocs.htm.
The NANP is the numbering plan for the Public Switched Telephone Network in the United States and its territories, Canada, Bermuda, and many Caribbean nations, including Anguilla, Antigua & Barbuda, Bahamas, Barbados, British Virgin Islands, Cayman Islands, Dominica, Dominican Republic, Grenada, Jamaica, Montserrat, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Trinidad and Tobago, and Turks & Caicos
Courtesy: NANPA (North American Numbering Plan Administration)
- 011 [ International Access Code ]
- 200 [ Reserved - Service Access Code ]
- 201 Morristown, Newark and Jersey City, (Northeast) New Jersey
- 202 Washington, District of Columbia
- 203 Fairfield & New Haven County, Connecticut
- 204 All parts of Manitoba, CANADA
- 205 All parts of Alabama
- 206 Seattle, Tacoma and Vancouver, (Western) Washington
- 207 All parts of Maine
- 208 All parts of Idaho
- 209 Fresno and Stockton, (Central) California
- 210 San Antonio, (Southern) Texas [512 until 1 Nov 1992]
- 211 [ Coin-operated Telephone Refunds ]
- 212 New York City (Manhattan only), New York
- 213 Los Angeles, California
- 214 Dallas, (Northeast) Texas
- 215 Allentown, Chester and Philadelphia, (Southeast) Pennsylvania
- 216 Akron, Cleveland, Massillon and Youngstown, (Northeast) Ohio
- 217 Springfield and Champaign-Urbana, (South Central) Illinois
- 218 Duluth, (Northern) Minnesota
- 219 Gary, Hammond, Fort Wayne and South Bend, (Northern) Indiana
- 228 Southern Mississippi
- 240 Western Maryland
- 242 Bahamas
- 246 Barbados
- 248 OaklandCounty,Michigan
- 250 BritishColumbia, Canada
- 253 Kent & Tacoma, Washington (South of Seattle)
- 254 Central Texas, Waco
- 264 Anguilla
- 268 Amtogia, Antigua and Barbuda
- 281 Houston,TX suburbs
- 284 British Virgin Islands
- 300 [ Reserved - Service Access Code ]
- 301 Silver Spring and Frederick, (Southern and Western) Maryland
- 302 All parts of Delaware
- 303 Boulder, Denver and Grand Junction, (Northern and Western) Colorado
- 304 All parts of West Virginia
- 305 Fort Lauderdale, Key West and Miami, (Southeast) Florida
- 306 All parts of Saskatchewan, CANADA
- 307 All parts of Wyoming
- 308 North Platte and Grand Island, (Western) Nebraska
- 309 Moline, Rock Island and Peoria, (West Central) Illinois
- 310 Parts of Los Angeles, California
- 311 [ Reserved - Special Function ]
- 312 Chicago, Illinois
- 313 Detroit and Ann Arbor, (Eastern) Michigan
- 314 Saint Louis and Columbia, (Eastern) Missouri
- 315 Oswego, Syracuse and Utica, (North Central) New York
- 316 Dodge City and Wichita, (Southern) Kansas
- 317 Indianapolis and Kokomo, (Central) Indiana
- 318 Lake Charles and Shreveport, (Western) Louisiana
- 319 Dubuque, Cedar Rapids and Iowa City, (Eastern) Iowa
- 320 Central Minnesota, St. Cloud
- 330 Northeaster Ohio: Akron, Canton, Youngstown
- 334 Southern Alabama: Mobile, Montgomery
- 360 Bellingham, Washington
- 336 North Carolina
- 340 U.S. Virgin Islands
- 345 Cayman Islands
- 352 Northern Florida
- 360 Western Washington state
- 400 [ Reserved - Service Access Code ]
- 401 All parts of Rhode Island
- 402 Lincoln and Omaha, (Eastern) Nebraska
- 403 Alberta, Yukon Territory and (Western) Northwest Territories, CANADA
- 404 Atlanta, (Northern) Georgia
- 405 Oklahoma City, (Southern and Western) Oklahoma
- 406 All parts of Montana
- 407 Orlando, West Palm Beach, (Eastern) Florida
- 408 San Jose and Sunnyvale, (Central Coastal/Silicon Valley) California
- 409 Galveston and Port Arthur, (Southeast) Texas
- 410 Baltimore and Annapolis, (Eastern) Maryland
- 411 [ Local Directory Assistance ]
- 412 Pittsburgh and New Castle, (Western) Pennsylvania
- 413 Springfield and Pittsfield, (Western) Massachusetts
- 414 Green Bay, Milwaukee and Racine, (Eastern) Wisconsin
- 415 San Francisco, (West Bay Area) California
- 416 Toronto, (South Central) Ontario, CANADA
- 417 Joplin and Springfield, (Southwest) Missouri
- 418 Quebec City, (Northeast) Quebec, CANADA
- 419 Toledo and Lima, (Northwest) Ohio
- 423 Eastern Tennessee: Chattanooga
- 425 Western Washington: Bellevue, Redmond, Renton & Everett (North & East of Seattle)
- 435 Utah
- 440 Northeastern Ohio
- 441 Bermuda
- 443 Eastern Maryland
- 450 Suburban Montreal area, Quebec
- 473 Grenadaand Carriacou
- 500 [ Reserved - Service Access Code ]
- 501 All parts of Arkansas
- 502 Louisville and Paducah, (Western) Kentucky
- 503 Most parts of Oregon
- 504 Baton Rouge and New Orleans, (Eastern) Louisiana
- 505 All parts of New Mexico
- 506 All parts of New Brunswick, CANADA
- 507 Rochester, Austin and Winona, (Southern) Minnesota
- 508 Worcester, Framingham and New Bedford, (Eastern) Massachusetts
- 509 Spokane and Walla Walla, (Eastern) Washington
- 510 Oakland, (East Bay Area) California
- 511 [ Reserved - Special Function ]
- 512 Austin and Corpus Christi, (Southern) Texas
- 513 Cincinnati and Dayton, (Southwest) Ohio
- 514 Montreal, (Southern) Quebec, CANADA
- 515 Des Moines and Fort Dodge, (Central) Iowa
- 516 Hempstead, (Long Island) New York
- 517 Lansing and Saginaw, (Central) Michigan
- 518 Albany and Schenectady, (Northeast) New York
- 519 London, (Southwest) Ontario, CANADA
- 520 Arizona: Flagstaff, Winslow
- 530 Northeastern California
- 540 Central Virginia Area
- 541 Oregon: Eugene
- 561 Southeast Florida: Belle Glade, Boca Raton, Ft. Pierce
- 562 Los Angeles Metro area
- 573 Columbia, Missouri
- 580 Western Oklahoma
- 600 [ Reserved - Service Access Code ]
- 601 All parts of Mississippi
- 602 Most parts of Arizona
- 603 All parts of New Hampshire
- 604 All parts of British Columbia, CANADA
- 605 All parts of South Dakota
- 606 Ashland and Covington, (Eastern) Kentucky
- 607 Binghamton, Elmira and Ithaca, (South Central) New York
- 608 Beloit and Madison, (Southwest) Wisconsin
- 609 Atlantic City, Camden and Trenton, (Southern) New Jersey
- 610 [Telex II (TWX) Service for CANADA]
- 611 [ Repair Service ]
- 612 Minneapolis and Saint Paul, (Central) Minnesota
- 613 Ottawa, (Southeast) Ontario, CANADA
- 614 Columbus and Zanesville, (Southeast) Ohio
- 615 Chattanooga and Nashville, (Eastern) Tennessee
- 616 Battle Creek and Grand Rapids, (Western) Michigan
- 617 Boston and surrounding area, (Eastern) Massachusetts
- 618 Alton and Centralia, (Southern) Illinois
- 619 San Diego, Palm Springs and the Imperial Valley, California
- 626 Suburban Los Angeles
- 630 Chicago Metro area
- 649 Turks and Caicos Islands
- 650 San Francisco area, CA
- 660 Northwestern Missouri
- 664 Montserrat
- 678 Atlanta Metro area
- 700 Value Added Information Service Access Code (varies by LD carrier)
- 701 All parts of North Dakota
- 702 All parts of Nevada
- 703 Arlington and Roanoke, (Northern and Western) Virginia
- 704 Charlotte and Salisbury, (Western) North Carolina
- 705 North Bay, (Northern) Ontario, CANADA
- 706 [Formerly Tijuana, (Northwest) MEXICO equivalent to +52 6X XXX XXX]
- 706 Augusta, Columbus and Rome, (Northern) Georgia
- 707 Eureka, Napa and Santa Rosa, (North Coastal) California
- 708 Aurora, Elgin, Evanston and Waukegan, (Northeast) Illinois
- 709 All parts of Newfoundland and Labrador, CANADA
- 710 [ Government Special Services ]
- 711 [ Reserved - Special Function ]
- 712 Council Bluffs and Sioux City, (Western) Iowa
- 713 Houston and surrounding area, Texas
- 714 Orange County, California
- 715 Eau Claire and Wausau, (Northern) Wisconsin
- 716 Buffalo, Niagara Falls and Rochester, (Western) New York
- 717 Harrisburg, Pottsville and Scranton, (East Central) Pennsylvania
- 718 New York City (Bronx, Brooklyn, Queens, Staten Island), New York
- 719 Colorado Springs and Pueblo, (Southeast) Colorado
- 724 South Western Pennsylvania
- 732 Central New Jersey
- 734 South Eastern Michigan
- 740 South Eastern Ohio
- 757 Eastern Virginia
- 758 St. Lucia
- 760 Southern California
- 765 Central Indiana
- 767 Dominica
- 770 Parts of Atlanta & Northern Georgia
- 773 Chicago Metro Area
- 781 Suburban Boston, MA
- 784 St. Vincent and Grenadines
- 785 Northern Kansas
- 787 Puerto Rico
- 800 "Toll-Free" Incoming WATS Service Access Code
- 801 All parts of Utah
- 802 All parts of Vermont
- 803 Most parts of South Carolina
- 804 Charlottesville, Norfolk and Richmond, (Southeast) Virginia
- 805 Bakersfield, Ventura and Simi Valley, (South Central) California
- 806 Amarillo, (North Panhandle) Texas
- 807 Thunder Bay and Fort William, (Northwest) Ontario, CANADA
- 808 All parts of Hawaii
- 809 Bahamas, Bermuda, Puerto Rico, the Virgin Islands, etc.
- 810 future: northern part of present area 313 in Michigan
- 811 [ Reserved - Special Function ]
- 812 Bloomington, Evansville and Terre Haute, (Southern) Indiana
- 813 Fort Myers, St. Petersburg and Tampa, (Southwest) Florida
- 814 Altoona and Erie, (West Central) Pennsylvania
- 815 Freeport, Joliet and Rockford, (Northern) Illinois
- 816 Kansas City and Saint Joseph, (Northwest) Missouri
- 817 Fort Worth, Temple and Waco, (North Central) Texas
- 818 Pasadena and San Fernando (area north of Los Angeles), California
- 819 Hull and Sherbrooke, (Western) Quebec and (Eastern) N.W. Territories, CANADA
- 830 San Antonio area, TX
- 843 Coastal South Carolina
- 847 Chicago Mmetro area
- 850 Florida panhandles
- 860 Connecticut: Hartford, Litchfield, Middlesex, New London, Tolland and Windham Counties
- 864 Greenville, South Carolina
- 867 Yukon /NWT, Canada
- 868 Trinidad & Tobago
- 869 St. Kitts & Nevis Islands
- 870 Arkansas
- 876 Jamaica
- 900 Mass Calling and Value Added Information Service Access Code
- 901 Memphis and Jackson, (Western) Tennessee
- 902 All parts of Prince Edward Island and Nova Scotia, CANADA
- 903 Texarkana and Paris, (Northeast) Texas
- 904 Jacksonville and Pensacola, (Northern) Florida
- 905 [Formerly Mexico City, (Northern) MEXICO equivalent to +52 5 XXX XXXX]
- 905 to be formed by splitting 416 (Ontario)
- 906 Sault Ste. Marie and Marquette, (Upper North) Michigan
- 907 All parts of Alaska
- 908 Elizabeth and New Brunswick, (Central) New Jersey
- 909 [ has been Telenet Communications Data Network ]
- 909 Riverside and San Bernardino, California [currently 714]
- 910 Davidson County, NC
- 911 [ Police/Fire Emergency Service ]
- 912 Macon and Savannah, (Southern) Georgia
- 913 Salina and Topeka, (Northern) Kansas
- 914 New Rochelle, White Plains and Poughkeepsie, (Southern) New York
- 915 Abilene, El Paso and Odessa, (Western) Texas
- 916 Sacramento and Davis, (Northern) California
- 917 Cellular and Paging for New York City
- 918 Muskogee and Tulsa, (Northeast) Oklahoma
- 919 Greenville, Raleigh and Winston-Salem, (Eastern) North Carolina
- 920 South Eastern Wisconsin
- 925 Walnut Creek area, California
- 931 Central Tennessee
- 937 Cincinnati area
- 940 Central Texas
- 941 Southwestern Florida: Ft. Myers
- 949 Southern OrangeCounty, CA
- 954 Southern Florida: Ft. Lauderdale, Hollywood, Pompano Beach
- 956 San Antonio area, TX
- 970 Northern / Western Colorado: Aspen, Breckenridge, Vail
- 972 Dallas,TX Suburbs
- 973 Northern New Jersey
- 978 Northern Massachusetts
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