Local access and transport area (LATA) is a term used in U.S. telecommunications regulation. It represents a geographical area of the United States under the terms of the

Modification of Final Judgment In United States telecommunication law, the Modification of Final Judgment (MFJ) is the August 1982 consent decree concerning the American Telephone & Telegraph Company (AT&T) and its subsidiaries. The terms required the Bell System divestiture &n ...

(MFJ) entered by the United States District Court for the District of Columbia in Civil Action number 82-0192 or any other geographic area designated as a LATA in the National Exchange Carrier Association, Inc. Tariff FCC No. 4. that precipitated the breakup of the original

AT&T AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile te ...

into the "

Baby Bells The Regional Bell Operating Companies (RBOC) are the result of '' United States v. AT&T'', the U.S. Department of Justice antitrust suit against the former American Telephone & Telegraph Company (later known as AT&T Corp.). On January 8, 19 ...

" or created since that time for wireline regulation. Generally, a LATA represents an area within which a

divested In finance and economics, divestment or divestiture is the reduction of some kind of asset for financial, ethical, or political objectives or sale of an existing business by a firm. A divestment is the opposite of an investment. Divestiture is a ...

Regional Bell Operating Company The Regional Bell Operating Companies (RBOC) are the result of '' United States v. AT&T'', the U.S. Department of Justice antitrust suit against the former American Telephone & Telegraph Company (later known as AT&T Corp.). On January 8, 1 ...

(RBOC) is permitted to offer

exchange Exchange may refer to: Physics *Gas exchange is the movement of oxygen and carbon dioxide molecules from a region of higher concentration to a region of lower concentration. Places United States * Exchange, Indiana, an unincorporated community * ...

telecommunications and exchange access services. Under the terms of the MFJ, the RBOCs are generally prohibited from providing services that originate in one LATA and terminate in another. LATA boundaries tend to be drawn around markets, and not necessarily along existing

state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...

or area code borders. Some LATAs cross over state boundaries, such as those for the

New York metropolitan area The New York metropolitan area, also commonly referred to as the Tri-State area, is the largest metropolitan area in the world by urban landmass, at , and one of the most populous urban agglomerations in the world. The vast metropolitan area ...

and

Greenwich, Connecticut Greenwich (, ) is a town in southwestern Fairfield County, Connecticut, United States. At the 2020 census, the town had a total population of 63,518. The largest town on Connecticut's Gold Coast, Greenwich is home to many hedge funds and other ...

;

Chicago, Illinois (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...

;

Portland, Oregon Portland (, ) is a port city in the Pacific Northwest and the list of cities in Oregon, largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette River, Willamette and Columbia River, Columbia rivers, Portland is ...

; and areas between

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...

Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...

, and

West Virginia West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the B ...

. Area codes and LATAs do not necessarily share boundaries; many LATAs exist in multiple area codes, and many area codes exist in multiple LATAs. Originally, the LATAs were grouped into regions within which one particular RBOC was allowed to provide services. The LATAs in each of these regions are numbered beginning with the same digit. Generally, the LATAs were associated with carriers or other indications in the following manner: In addition to this list, two local carriers were made independent:

Cincinnati Bell Cincinnati Bell, doing business as Altafiber (typeset as altafiber), is a regional telecommunications service provider based in Cincinnati, Ohio, United States. It provides landline telephone, fiber-optic Internet, and IPTV services through ...

in the

Cincinnati Cincinnati ( ) is a city in the U.S. state of Ohio and the county seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line wit ...

area, and SNET (a former unit of AT&T, sold to Frontier) in

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capita ...

. These were assigned LATAs in the 9xx range. Since the breakup of the original AT&T in 1984, however, some amount of deregulation, as well as a number of phone company mergers, have blurred the significance of these regions. A number of new LATAs have been formed within these regions since their inception, most beginning with the digit 9. LATAs contribute to an often confusing aspect of

long-distance Long distance or Long-distance may refer to: *Long-distance calling * Long-distance operator * Long-distance relationship * Long-distance train *Long-distance anchor pylon, see dead-end tower Footpaths * Long-distance trail *European long-d ...

telephone service. Due to the various and overlapping regulatory limitations and inter-business arrangements, phone companies typically provide differing types of “long distance” service, each with potentially different rates: * within same LATA, within same state * within same LATA, between different states * between different LATAs, within same state * between different LATAs, between different states Given the complexity of the legal and financial issues involved in each distinction, many long-distance companies tend to not explain the details of these different rates, which can lead to billing questions from surprised customers. Local carriers have various alternative terms for LATAs such as “Service Area” by Pacific Bell in California, or “Regional Calling Area” by Verizon in Maryland. To facilitate the sharing of

Telcordia iconectiv is a supplier of network planning and network management services to telecommunications providers. Known as Bellcore after its establishment in the United States in 1983 as part of the break-up of the Bell System, the company's name ...

telephone routing databases between countries, LATAs were later defined for the provinces of

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

, the other countries and territories of the

North American Numbering Plan The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international calling ...

, and

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. Aside from U.S. territories, LATAs have no regulatory purpose in these areas. In 2000, the Canadian Radio-television and Telecommunications Commission eliminated all Canadian provincial LATAs in favor of a single LATA for Canada (888). No LATAs exist with a second digit of 0 or 1, which distinguished them from traditional area codes.

List of LATAs

US state LATAs

The city or place name given with some LATAs is the name given to identify the LATA, not the limit of its boundary. Generally this is the most significant metropolitan area in the LATA. In some cases, a LATA is named after the largest phone exchange in the LATA that was historically served by an RBOC. For example, the largest city in the Pahrump LATA in Nevada is

Las Vegas Las Vegas (; Spanish for "The Meadows"), often known simply as Vegas, is the 25th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County. The city anchors the Las Vegas ...

. Since Las Vegas was not historically served by an RBOC, the LATA is named after the smaller town of Pahrump, which was historically served by Nevada Bell (now AT&T Inc.). Also, listing under a state does not necessarily limit the LATA's territory to that state; there may be overlaps as well as enclaves. Areas that include notable portions of other states are explained, but not all LATA state overlaps may be detailed. LATA boundaries are not always solidly defined. Inter-carrier agreements, change proposals to the

Federal Communications Commission The Federal Communications Commission (FCC) is an independent agency of the United States federal government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisdicti ...

(FCC), and new wiring developments into rural areas can and do often alter the effective borders between LATAs. Many sources on LATA boundary information conflict with each other at detailed levels.

data may provide the most up-to-date details of LATA inclusions.

Alabama

* 476

Birmingham Birmingham ( ) is a City status in the United Kingdom, city and metropolitan borough in the metropolitan county of West Midlands (county), West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1. ...

* 477

Huntsville Huntsville is a city in Madison County, Limestone County, and Morgan County, Alabama, United States. It is the county seat of Madison County. Located in the Appalachian region of northern Alabama, Huntsville is the most populous city in th ...

* 478 Montgomery **Includes Georgetown, Georgia * 480

Mobile Mobile may refer to: Places * Mobile, Alabama, a U.S. port city * Mobile County, Alabama * Mobile, Arizona, a small town near Phoenix, U.S. * Mobile, Newfoundland and Labrador Arts, entertainment, and media Music Groups and labels * Mobile ( ...

**Includes areas of

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...

north of

Pascagoula The Pascagoula (also Pascoboula, Pacha-Ogoula, Pascagola, Pascaboula, Paskaguna) were an indigenous group living in coastal Mississippi on the Pascagoula River. The name ''Pascagoula'' is a Mobilian Jargon term meaning "bread people". Choctaw ...

**Includes parts of northern Escambia County, Florida, Escambia County, Florida in the Century, Florida, Century and Walnut Hill, Florida, Walnut Hill areas

Alaska

* 832

Arizona

* 666 Phoenix, Arizona, Phoenix ** Includes Winterhaven, California, Winterhaven, California ** Includes Spirit Mountain, Nevada, Spirit Mountain, Nevada ** Includes Glen Canyon Dam, Glen Canyon, Utah * 668 Tucson, Arizona, Tucson ** Includes Rodeo, New Mexico, Rodeo and Virden, New Mexico, Virden, New Mexico * 980 Navajo Nation (Arizona portion) ** Includes southwestern San Juan County, Utah

Arkansas

* 526 Fort Smith, Arkansas, Fort Smith ** Includes part of Oklahoma from Pocola, Oklahoma, Pocola to Moffett, Oklahoma, Moffett ** Includes section of Oklahoma from Colcord, Oklahoma, Colcord to Watts, Oklahoma, Watts ** Includes small part of Barry County, Missouri, Barry County, Missouri ** Includes area of Oklahoma near Maysville, Arkansas ** Includes area of Oklahoma near Uniontown, Arkansas * 528 Little Rock, Arkansas, Little Rock ** Includes Watson, Oklahoma * 530 Pine Bluff, Arkansas, Pine Bluff ** Includes Junction City, Louisiana, Junction City, Louisiana

California

* 722 San Francisco * 724 Chico, California, Chico * 726 Sacramento, California, Sacramento * 728 Fresno, California, Fresno * 730 Los Angeles ** Includes La Paz County, Arizona, La Paz County, Arizona * 732 San Diego * 734 Bakersfield, California, Bakersfield * 736 Monterey, California, Monterey * 738 Stockton, California, Stockton * 740 San Luis Obispo, California, San Luis Obispo * 973 Palm Springs, California, Palm Springs

Colorado

* 656 Denver * 658 Colorado Springs, Colorado, Colorado Springs

Connecticut

* 920

Washington, D.C.

*236 ** Includes the west portion of the West Bay of

, as far north as Damascus, Maryland, Damascus, Maryland (roughly Montgomery County, Maryland, Montgomery, Prince George's County, Maryland, Prince George's, Charles County, Maryland, Charles, and St. Mary's County, Maryland, St. Mary's counties of Maryland) ** Includes the northeasternmost portion of

, from Sterling, Virginia, Sterling to just north of Fredericksburg, Virginia, Fredericksburg (roughly Northern Virginia)

Florida

* 448 Pensacola, Florida, Pensacola ** Includes Clear Springs, Alabama, Clear Springs, Wing, Alabama, Wing and Florala, Alabama, Florala, Alabama * 450 Panama City, Florida, Panama City ** Includes a small portion of Georgia (U.S. state), Georgia near Tallahassee, Florida, Tallahassee * 452 Jacksonville, Florida, Jacksonville * 454 Gainesville, Florida, Gainesville * 456 Daytona Beach, Florida, Daytona Beach * 458 Orlando, Florida, Orlando * 460 Southeast Florida * 939 Fort Myers, Florida, Fort Myers * 952 Tampa, Florida, Tampa * 953 Tallahassee, Florida, Tallahassee *Florida is a special case in which state regulators have also assigned 5-digit LATA codes which overlay the Federally-assigned 3-digit LATAs. See map on the right for details. Some carriers refer to these by the 3-digit LATA, others by the 5-digit.

Georgia

* 438 Atlanta ** Includes portion of Alabama from Oakland, Chambers County, Alabama, Oakland to Huguley, Alabama, Huguley ** Includes Phenix City, Alabama, Phenix City, Alabama ** Includes Ranburne, Alabama, Ranburne, Alabama * 440 Savannah, Georgia, Savannah ** Includes part of southern South Carolina as far north as Hardeeville, South Carolina, Hardeeville and Hilton Head Island, South Carolina, Hilton Head Island * 442 Augusta, Georgia, Augusta ** Includes Aiken County, South Carolina, Aiken County and Edgefield County, South Carolina, Edgefield County, South Carolina * 444 Albany, Georgia, Albany * 446 Macon, Georgia, Macon

Hawaii

* 834

Idaho

* 652 Southern Idaho ** Includes Malheur County, Oregon, Malheur County, Oregon, especially the Ontario, Oregon, Ontario area ** Includes Jackpot, Nevada, Jackpot, Jarbidge, Nevada, Jarbidge, and Owyhee, Nevada, Owyhee, Nevada ** Includes Alta, Wyoming, Alta and Border, Wyoming, Border, Wyoming * 960 Coeur d'Alene, Idaho, Coeur d'Alene ** Includes part of northwest Montana as far east as Eureka, Montana, Eureka and as far south as Libby, Montana, Libby ** Includes Pullman, Washington, Pullman, Washington and surrounding area ** Includes Pend Oreille County, Washington, Pend Oreille County, Washington

Illinois

* 358 Chicago ** Includes Lake County, Indiana, Lake County and Newton County, Indiana, Newton County, Indiana, especially the Gary, Indiana, Gary, Indiana area ** Includes Demotte, Indiana, Demotte, Hebron, Indiana, Hebron, and Lakes of the Four Seasons, Indiana, Lakes of the Four Seasons, Indiana ** Extends into Wisconsin Salem, Kenosha County, Wisconsin, Salem Township * 360 Rockford, Illinois, Rockford ** Extends into Wisconsin near Apple River, Illinois, Apple River, Illinois * 362 Cairo, Illinois, Cairo * 364 Sterling, Illinois, Sterling * 366 Forrest, Illinois, Forrest * 368 Peoria, Illinois, Peoria * 370 Champaign, Illinois, Champaign ** May include areas of Indiana near Danville, Illinois, Danville, Illinois * 374 Springfield, Illinois, Springfield * 376 Quincy, Illinois, Quincy * 976 Mattoon, Illinois, Mattoon * 977 Macomb, Illinois, Macomb * 978 Olney, Illinois, Olney

Indiana

* 330 Evansville, Indiana, Evansville * 332 South Bend, Indiana, South Bend * 334 Auburn, Indiana, Auburn-Huntington, Indiana, Huntington * 336 Indianapolis ** Extends into Illinois near Dana, Indiana, Dana, Indiana * 338 Bloomington, Indiana, Bloomington * 937 Richmond, Indiana, Richmond ** Includes Union City, Ohio, Union City, Ohio * 938 Terre Haute, Indiana, Terre Haute ** Includes Edgar County, Illinois, Edgar and Clark County, Illinois, Clark counties of Illinois ** May include Robinson, Illinois, Robinson, Illinois

Iowa

* 630 Sioux City, Iowa, Sioux City ** Extends into Minnesota near incorporated areas of Iowa along its length ** Includes the eastern portions of Dakota County, Nebraska, Dakota and Thurston County, Nebraska, Thurston counties of Nebraska ** Includes North Sioux City, South Dakota, North Sioux City, South Dakota, and extends into South Dakota near Akron, Iowa, Akron and Hawarden, Iowa, Hawarden, Iowa * 632 Des Moines, Iowa, Des Moines ** Extends into Missouri from Andover, Missouri, Andover, Missouri to south of Davis City, Iowa, Davis City, Iowa * 634 Davenport, Iowa, Davenport ** Includes portion of Illinois as far as Geneseo, Illinois, Geneseo and Aledo, Illinois, Aledo ** Includes the Galena, Illinois, Galena, Illinois area * 635 Cedar Rapids, Iowa, Cedar Rapids

Kansas

*524 Kansas City, Kansas, Kansas City (see Missouri for details) *532 Wichita, Kansas, Wichita *534 Topeka, Kansas, Topeka

Kentucky

* 462 Louisville, Kentucky, Louisville ** Includes the central southern area of Indiana around Salem, Indiana, Salem * 464 Owensboro, Kentucky, Owensboro * 466 Winchester, Kentucky, Winchester

Louisiana

* 492 Baton Rouge, Louisiana, Baton Rouge * 486 Shreveport, Louisiana, Shreveport * 488 Lafayette, Louisiana, Lafayette * 490 New Orleans

Maine

* 120

Maryland

* 236 ''see Washington, D.C.; most of this LATA is actually in Maryland'' * 238 Baltimore * 240 Hagerstown, Maryland, Hagerstown ** Includes the easternmost part of

around Martinsburg, West Virginia, Martinsburg as far as Route 9 ** Includes the northwestern part of the Eastern Panhandle of West Virginia including Keyser, West Virginia, Keyser, from Grant County, West Virginia, Grant County to Short Gap, West Virginia, Short Gap ** Includes area of Pennsylvania just north of Hancock, Maryland, Hancock, Maryland * 242 Salisbury, Maryland, Salisbury

Massachusetts

* 126 Western Massachusetts * 128 Eastern Massachusetts

Michigan

* 340 Detroit * 342 Upper Peninsula of Michigan ** Includes portion of Wisconsin around Iron Mountain, Michigan, Iron Mountain, Michigan as far as Rhinelander, Wisconsin, Rhinelander and Townsend, Wisconsin, Townsend, Wisconsin * 344 Saginaw, Michigan, Saginaw * 346 Lansing, Michigan, Lansing * 348 Grand Rapids, Michigan, Grand Rapids

Minnesota

* 620 Rochester, Minnesota, Rochester * 624 Duluth, Minnesota, Duluth * 626 St. Cloud, Minnesota, St. Cloud * 628 Minneapolis * 636 Brainerd, Minnesota, Brainerd, Minnesota-Fargo, North Dakota, Fargo, North DakotaHalf of LATA 636 occupies eastern North Dakota, the other half takes up the northwest quarter of Minnesota.

Mississippi

* 482 Jackson, Mississippi, Jackson ** Includes parts of Alabama around Columbus, Mississippi, Columbus, Mississippi * 484 Biloxi, Mississippi, Biloxi

Missouri

* 520 St. Louis ** Includes part of south-central Illinois southwest of Springfield. * 521 Westphalia, Missouri, Westphalia (per locallingguide.com, includes Columbia MO) * 522 Springfield, Missouri, Springfield * 524 Kansas City, Missouri, Kansas City ** Includes eastern portion of Kansas as far out as U.S. 73 and U.S. 59 and south as far as U.S. 54 * 521 Central Missouri: Columbia, Missouri, Columbia and surrounding areas

Montana

* 648 Great Falls, Montana, Great Falls * 650 Billings, Montana, Billings * 963 Kalispell, Montana, Kalispell ''(historical)'' **note: LATA 963 appears on many LATA lists, and at least one map, but is no longer a separate LATA-equivalent area. It is now part of LATA 648.

Nebraska

* 644 Omaha, Nebraska, Omaha * 646 Grand Island, Nebraska, Grand Island * 958 Lincoln, Nebraska, Lincoln

Nevada

* 720 Reno, Nevada, Reno ** May include Alpine, California, Alpine, Verdi, California, Verdi and Coleville, California, Coleville, California * 721 Pahrump, Nevada, Pahrump

New Hampshire

* 122 ** Includes part of Vermont around Groton, Vermont, Groton ** Includes part of Maine around Kittery, Maine, Kittery and Wilsons Mills, Maine, Wilsons Mills

New Jersey

* 220 Atlantic Coastal New Jersey * 222 Delaware Valley * 224 North Jersey

New Mexico

* 664

New York

*132 New York City and surrounding metropolitan area ** Includes Greenwich, Connecticut *133 Poughkeepsie (city), New York, Poughkeepsie ** Includes Milford, Pennsylvania, Milford, Pennsylvania and surrounding area *134 Albany, New York, Albany ** Includes Hancock, Massachusetts *136 Syracuse, New York, Syracuse *138 Binghamton, New York, Binghamton ** Includes Sayre, Pennsylvania, Sayre, Pennsylvania and surrounding area *140 Buffalo, New York, Buffalo ** Includes Ulysses, Pennsylvania, Ulysses, Pennsylvania and surrounding area *921 Fishers Island, New York, Fishers Island *974 Rochester, New York, Rochester

North Carolina

*420 Asheville, North Carolina, Asheville *422 Charlotte, North Carolina, Charlotte ** Includes York County, South Carolina, York County and Lancaster County, South Carolina, Lancaster County, South Carolina *424 Greensboro, North Carolina, Greensboro-Winston-Salem, North Carolina, Winston-Salem area *426 Raleigh, North Carolina, Raleigh *428 Wilmington, North Carolina, Wilmington *949 Fayetteville, North Carolina, Fayetteville *951 Rocky Mount, North Carolina, Rocky Mount

North Dakota

*636 Brainerd, Minnesota, Brainerd, Minnesota-Fargo, North Dakota, Fargo, North Dakota *638 Bismarck, North Dakota, Bismarck **Includes portions of Montana near Beach, North Dakota, Beach and Squaw Gap, North Dakota, Squaw Gap, North Dakota

Ohio

*320 Cleveland *322 Youngstown, Ohio, Youngstown *324 Columbus, Ohio, Columbus *325 Akron, Ohio, Akron *326 Toledo, Ohio, Toledo *328 Dayton, Ohio, Dayton *922

** Includes Rising Sun, Indiana, Rising Sun, Indiana and surrounding area ** Includes the northern tip of Kentucky as far south as Williamstown, Kentucky, Williamstown *923 Lima, Ohio, Lima-Mansfield, Ohio, Mansfield

Oklahoma

*536 Oklahoma City *538 Tulsa, Oklahoma, Tulsa

Oregon

*670 Eugene, Oregon, Eugene *672 Portland, Oregon, Portland ** Includes Southwestern Washington from Willapa Bay to Goldendale, Washington, Goldendale

Pennsylvania

*226 Harrisburg, Pennsylvania, Harrisburg *228 PhiladelphiaLATA 228 includes all of Delaware as well as the metro area of Philadelphia, Pennsylvania, Philadelphia, Pennsylvania. *230 Altoona, Pennsylvania, Altoona *232 Wilkes-Barre, Pennsylvania, Wilkes-Barre/Scranton, Pennsylvania, Scranton *234 Pittsburgh *924 Erie, Pennsylvania, Erie

Rhode Island

*130 Rhode Island

South Carolina

*430 Greenville, South Carolina, Greenville ** Includes Polk County, North Carolina, Polk County, North Carolina *432 Florence, South Carolina, Florence *434 Columbia, South Carolina, Columbia *436 Charleston, South Carolina, Charleston

South Dakota

*640

Tennessee

*468 Memphis, Tennessee, Memphis ** Includes part of

from south of Memphis to as far south as Hernando, Mississippi, Hernando *470 Nashville, Tennessee, Nashville *472 Chattanooga, Tennessee, Chattanooga ** Includes northwestern tip of Georgia (U.S. state), Georgia *474 Knoxville, Tennessee, Knoxville *956 Bristol, Tennessee, Bristol-Kingsport, Tennessee, Kingsport-Johnson City, Tennessee, Johnson City ** Includes part of

from Abingdon, Virginia, Abingdon to Wytheville, Virginia, Wytheville

Texas

*540 El Paso, Texas, El Paso *542 Midland, Texas, Midland *544 Lubbock, Texas, Lubbock *546 Amarillo, Texas, Amarillo ** Includes the southern half of the Oklahoma Panhandle *548 Wichita Falls, Texas, Wichita Falls *550 Abilene, Texas, Abilene *552 Dallas *554 Longview, Texas, Longview ** Includes Miller County, Arkansas, Miller County, Arkansas *556 Waco, Texas, Waco *558 Austin, Texas, Austin *560 Houston *562 Beaumont, Texas, Beaumont *564 Corpus Christi, Texas, Corpus Christi *566 San Antonio *568 Brownsville, Texas, Brownsville *570 Hearne, Texas, Hearne *961 San Angelo, Texas, San Angelo

Utah

*660 Utah ** May include Mesquite, Nevada, Mesquite and Partoun, Nevada, Partoun, Nevada ** May include Fredonia, Arizona, Fredonia and Colorado City, Arizona, Colorado City, Arizona *981 Navajo Nation (Utah portion)

Vermont

*124 Vermont ** Includes West Lebanon, New Hampshire, West Lebanon and West Chesterfield, New Hampshire

Virginia

*236 Arlington County, Virginia, Arlington, Fairfax County, Virginia, Fairfax, Prince William County, Virginia, Prince William, and Stafford County, Virginia, Stafford counties, and enclosed independent city, cities. ''See #Washington, D.C., Washington, D.C.'' *244 Roanoke, Virginia, Roanoke *246 Culpeper, Virginia, Culpeper *248 Richmond, Virginia, Richmond *250 Lynchburg, Virginia, Lynchburg *252 Norfolk, Virginia, Norfolk *927 Harrisonburg, Virginia, Harrisonburg *928 Charlottesville, Virginia, Charlottesville *929 Edinburg, Virginia, Edinburg *932 (Shared with WV)

Washington

*674 Seattle *676 Spokane, Washington, Spokane ** Includes parts of Oregon including Milton-Freewater, Oregon, Milton-Freewater and Troy, Oregon, Troy ** Includes a section of Idaho from Lewiston, Idaho, Lewiston to Grangeville, Idaho, Grangeville, up to Troy, Idaho, Troy, and Elk City, Idaho, Elk City ** Includes Tensed, Idaho, Tensed, Idaho

West Virginia

*254 Charleston *256 Clarksburg *240 Martinsburg *932 (overlap with VA)

Wisconsin

*350 Northeast Wisconsin ** Includes the southern corner of Michigan's Upper Peninsula of Michigan, Upper Peninsula *352 Northwest Wisconsin *354 Southwest Wisconsin *356 Southeast Wisconsin

Wyoming

*654 Wyoming

U.S. territory LATAs

*American Samoa - 884 *Guam - 871 *Northern Mariana Islands - 870 *Puerto Rico - 820 *U.S. Virgin Islands - 822 *Wake Island - 836

Non-U.S. LATAs (non-regulatory)

- 838 *The Bahamas, Bahamas - 824 *Jamaica - 826 *Dominican Republic - 828 *Other Caribbean - 830 *

- 888

Canada

As LATAs exist for US regulatory purposes, where they serve as a demarcation between intra-LATA calls (handled by regional Bell operating companies) and inter-LATA calls (handled by interstate long-distance carriers such as AT&T), they have no legal significance in

. As of 2000, all of Canada (except for non-geographic numbers) is identified as LATA 888. The use of this LATA set to identify individual provinces is therefore deprecated: *Alberta - 881, 884 *British Columbia - 886 *Manitoba - 888 *New Brunswick - 890 *Newfoundland and Labrador, Newfoundland - 885 *Nova Scotia/Prince Edward Island, P.E.I. - 887, 889 *Ontario - 851 *Quebec - 850, 883 *Saskatchewan - 891 *Yukon, Yukon Territory - 892

Local interconnection region

Canada does define local interconnection regions (LIR's), which determine where points of interconnection (POI) must be provided by Competitive local exchange carrier, competing local exchange and mobile carriers to provide local number portability. A Canadian LIR is geographically smaller than a US LATA, typically comparable in size to a small city's flat-rate local calling area or to an entire large regional municipality. In areas where a small-city Digital Multiplex System controls a group of remote switching centres, one for each surrounding village, the local interconnect region normally includes each exchange in the city plus all downstream remotes of those exchanges. In a Toronto-sized city, the LIR will include only the city itself. While the LIRs resemble local calling areas in geographic size, there are some key differences: * LIR's normally do not include incumbent local independent telephone company exchanges in locations not opened to competition, where the independent numbers are currently not portable. * LIR's do not cross provincial boundaries. Lloydminster has an LIR for each province, as does Ottawa-Hull, Quebec, Hull. * LIR's closely follow network topology, which often does not match a local flat-rate calling area as local calling is defined by arbitrary regulatory constructs. One example: The tiny unincorporated village of Beebe Plain, divided by the Quebec-Vermont border, is served by +1-819-876 Rock Island, Quebec, Canada (a remote station controlled from Magog, Quebec, Magog) and +1-802-873 Derby Line, Vermont, USA (a remote station controlled from St. Johnsbury, Vermont, St. Johnsbury). Magog and St. Johnsbury are both a long-distance call from anywhere in Beebe Plain, even though Canadian subscribers can place local calls to Sherbrooke, US subscribers can locally call Newport (city), Vermont, Newport and an international call within the village is local. An LIR assignment which follows network topology places the Canadian remote station in Magog's LIR, not Sherbrooke's LIR.Rock Island QC
on localcallingguide.com

Notes

{{reflist

External link

Telephony