800-899
800: Toll-free telephone service (see also 822, 833, 844, 855, 866, 877, 880, 881, 882, 888)
801: Utah (Counties of Davis, Morgan, Salt Lake, Utah, and Weber along the Wasatch Front, including the cities of Salt Lake City, Ogden, and Provo)
- Originally covered all of Utah; split in 1997 to create 435.
- Overlain by 385 in 2009.
802: Vermont (all)
803: South Carolina (Columbia, Rock Hill, Sumter, Aiken, and most of central South Carolina)
- Originally covered all of South Carolina; split twice to create 864 (1995) and 843 (1998).
804: Virginia (the Richmond Metropolitan Area, including Petersburg; also the Northern Neck and Middle Peninsula)
- Created in 1973 by split from 703.
- Split to create 757 (1996) and 434 (2001).
805: California (Ventura County, San Luis Obispo County, Santa Barbara County, Atascadero, Lompoc, Ojai**, Oxnard, Pismo Beach, San Buenaventura, Santa Maria, the Simi Valley, and Vandenberg Air Force Base.
- Created in 1957 by split from 213.
- Split in 1999 to create 661.
806: Texas (Lubbock, Amarillo, Canadian, Canyon, Dalhart, and the entire Texas Panhandle)
- Created in 1957 from parts of 817 and 915.
807: Province of Ontario (Northwestern Ontario: Thunder Bay, Kenora, Dryden, Greenstone)
- Created in 1962 by split from 705.
808: Hawaii (covers all of the Hawaiian Islands to Midway Atoll, and major Hawaiian cities including Honolulu, Kailua, Mililani, Haleiwa, Hilo, Kahului, Lihue, etc. Area code also includes Wake Island)
809: Dominican Republic.
- Originally covered most of the Caribbean; split to create 441 (1995), 787, 268, 246, 664, 758, 345, 242, 869 (1996), 264, 876, 340, 649, 868, 284, 767, 473 (1997), 784 (1998).
- By 2000, served the Dominican Republic exclusively.
- Overlain by 829 (2005) and 849 (2009).
810: Michigan (Port Huron, Flint, Lapeer, and Michigan "Thumb")
- Created in 1993 by split from 313.
- Split to create 248 (1997) and 586.
811: Mobile customer service on some North American cellular carriers, also used as a 9-1-1 like emergency number to handle distress calls in much of Jamaica. This code now has separate mandated usages in the U.S. and Canada. In the U.S., the FCC adopted it as the local underground utility assistance service in 2007. In Canada, the CRTC reserved it for non-urgent telehealth services in 2005, though not all provinces and territories have yet adopted it.
812: Indiana (Southern Indiana, including Bloomington, Evansville, Terre Haute, Columbus, Jeffersonville, Lawrenceburg, Madison, and New Albany.
813: Florida (all of Hillsborough County, including Tampa and its suburbs, MacDill Air Force Base, and Plant City; and also the inland areas of Pasco County)
- Created in 1953 by splitting it off from 305 to give Florida more than one area code.
- Split and resplit to create 941 in 1995 and 727 in 1998.
814: Pennsylvania (Erie, State College, Altoona, Clearfield, Emporium, Johnsonburg, Johnstown, Meyersdale, Ridgway, Somerset, and most of northwestern and parts of central Pennsylvania)
815: Illinois (Rockford, La Salle, DeKalb, and much of northern Illinois, including western Chicago suburbs such as Joliet, Plainfield, and Crystal Lake)
- Split in 1957 to create part of 309.
- Overlain by 779 on March 17, 2007.
816: Missouri (Kansas City, St Joseph, Independence, Harrisonville, and parts of west-central Missouri)
- Split in 1950 to create part of 417.
- Split again in 1997 to create 660.
817: Texas (Fort Worth, Arlington, Grand Prairie, Grandview, Weatherford)
- Created in 1953 from parts of 214 and 915.
- Split in 1957 to create part of 806.
- Three-way split in 1997 created the new 254 and 940.
- Overlain by 682 in 2000.
818: California: the San Fernando Valley of Los Angeles County, including Burbank, Canoga Park, Encino, Glendale, North Hollywood, Northridge, Panorama City, Reseda, San Fernando, Sylmar, Tarzana, Van Nuys, and Woodland Hills.)
- Created in 1984 by split from 213.
- Split in 1997 to create 626.
- Overlain by 747 in 2009.
819: Province of Quebec (Abitibi-Témiscamingue, Estrie, Mauricie, Outaouais, Sherbrooke, and Trois-Rivieres.)
- Created in 1957 by splitting it off from 514.
- Portion of 819 serving the Northwest Territories and Nunavut split in 1997 to form part of the new 867 area.
820–821: not used
822: reserved for future toll-free expansion (see also 800, 833, 844, 855, 866, 877, 888, and 880–882 in this list)
823–824: not used
825: reserved for future usage in Alberta.
826–827: not used
828: North Carolina (Asheville, Franklin, Hickory, Murphy, Waynesville, and parts of western North Carolina)
- Created in 1998 by splitting it off from 704.
829: the Dominican Republic.
- Overlain on 809 in 2005.
830: Texas (Del Rio, Kerrville, Eagle Pass, Fredericksburg, New Braunfels, and part of the Rio Grande Valley)
- Created in 1997 by splitting it off from 210.
831: California (Monterey, Salinas, Monterey County, Hollister, and Santa Cruz)
- Created in 1998 by splitting it off from 408.
832: Texas
- Overlain on 713 and 281 in 1999.
833: reserved for future toll-free expansion (see also 800, 822, 844, 855, 866, 877, 888, and 880–882 in this list)
834: not used
835 was to be an overlay for 610 and 484 (Pennsylvania), but was canceled in 2008.
836–842: not used
843: South Carolina (Charleston, Florence, Hilton Head Island, Myrtle Beach, Charleston Air Force Base, and most of southeastern South Carolina)
- Created in 1998 by splitting it from 803.
844: reserved for future toll-free expansion (see also 800, 822, 833, 855, 866, 877, 888, and 880–882 in this list)
845: New York State (Dutchess, Orange, Putnam, Rockland, Sullivan, and Ulster Counties in southeastern New York State. Includes: Poughkeepsie, Middletown, Kingston, West Point, Newburgh, and the Catskill Mountains west to Margaretville)
- Created in 2000 by splitting it off from 914.
846: not used
847: Illinois (Arlington Heights, Buffalo Grove, Des Plaines, Skokie, Waukegon, etc., near Chicago
- Created in 1996 by split from 708.
- Overlain by 224 in 1998.
848: New Jersey
- Overlain on 732 in 2001.
849: the Dominican Republic
- Overlain on 809 and 829 in 2009
850: northwestern Florida (Appalachicola, Pensacola, Tallahassee, Quincy, Panama City, Naval Air Station Pensacola, Eglin Air Force Base, and all of the Florida Panhandle)
- Created in 1997 by split from 904.
851–854: not used
855: reserved for future toll-free expansion (see also 800, 822, 833, 844, 866, 877, 888, and 880–882 in this list)
856: New Jersey (Cherry Hill, Camden, Millville, Vineland, and most of southwestern New Jersey)
- Created in 1999 by split from 609.
857: Massachusetts (Boston, Cambridge, Quincy, Newton, Everett, and the nearby suburbs)
- Overlain on 617 in 2001.
858: Southern California: the northern half of San Diego, California city and some northern suburbs)
- Created in 1999 by splitting it off from 619.
859: Kentucky (Lexington, Richmond, Danville, Covington, Florence, and northernmost Kentucky)
- Created in 2000 by split from 606.
- Mnemonic: UKY—the University of Kentucky is located in Lexington, the largest city served by this code.
860: Connecticut (Hartford, Bristol, Norwich, and northern and eastern Connecticut)
- Created in 1995 by splitting it off from 203.
- To be overlain by 959 in or about 2011.
861: not used
862: New Jersey
- Overlain on 973 in 2001.
863: Florida (Lakeland, Bartow, Sebring, Winter Haven in south-central Florida)
- Created in 1999 by split from 941.
864: South Carolina (Greenville, Spartanburg, Anderson, Clemson, and most of northwestern South Carolina)
- Created in 1995 by splitting it off from 803.
865: Tennessee (Knoxville, Alcoa, Athens, Clinton, Crossville, Dayton, Gatlinburg, Loudon, Maryville, Newport, Oak Ridge, Oliver Springs, Pigeon Forge, Rockwood, Sweetwater, etc., in East Tennessee)
- Created in 1999 by split from 423.
- Mnemonic: VOL—the University of Tennessee, whose sports teams are the "Volunteers", is in Knoxville, the largest city served by this code.
866: Toll-free telephone service (see also 800, 822, 833, 844, 855, 877, 888, and 880–882 in this list)
867: Yukon, Northwest Territories, and Nunavut
- Created in 1997 from parts of 403 and 819.
- Mnemonic: TOP of the world.
- Mnemonic: 1867 was the year of Canada's confederation (formation) (long-distance calls to the 867 area code must begin 1-867).
868: Trinidad and Tobago (all)
- Created in 1997 by split from 809.
- Mnemonic: TNT
869: Saint Kitts and Nevis (all)
- Created in 1996 by split from 809.
870: Arkansas (Texarkana, Jonesboro, Pine Bluff, and southern, eastern, and northeastern Arkansas)
- Created in 1997 by being split off from 501.
- To be overlain by 327 in 2013.
871: not used
872: Illinois—overlay for 312 and 773, entered service on November 7, 2009
873: Province of Quebec—overlay of 819, will enter service June 1, 2013
874–875: not used
876: Jamaica (all)
- Created in 1997 by split from 809.
877: Toll-free telephone service (see also 800, 822, 833, 844, 855, 866, 888, and 880–882 in this list)
878: Pennsylvania
- Overlain on 412 and area code 724 in 2001.
879: not used
880–882: Codes 880 through 882 were previously used to allow international customers to access toll-free numbers they otherwise could not by paying the international portion of the toll. 880 was paired with 800, 881 with 888, and 882 with 877. As of 2008, they were reserved for toll-free area codes, but were not yet in use.
883–887: not used
888: Toll-free telephone service (see also 800, 822, 833, 844, 855, 866, 877, and 880–882 in this list)
889: not used
890–899: Reserved for potential North American Numbering Plan expansion
Read more about this topic: List Of North American Numbering Plan Area Codes