View source for Local Access And Transport Area

{{short description|Geographical area of the United States, used in telephone service}}
[[Image:LATAs.png|thumb|right|350px|Map of LATAs in the US]] 
'''Local Access And Transport Area''' ('''LATA''') is a term defined in United States [[telecommunications]] regulation.  A LATA is a geographical area of the United States under the terms of the [[Modification of Final Judgment]] (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 [[American Telephone & Telegraph|AT&T]] into the "[[Regional Bell Operating Company|Baby Bells]]" or created since that time for [[Plain old telephone service|wireline]] regulation.

Generally, a LATA represents an area within which a [[divested]] [[Regional Bell Operating Company]] (RBOC) is permitted to offer [[telephone exchange|exchange]] 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 [[U.S. state|state]] or [[area code]] borders. Some LATAs cross over state boundaries, such as those for the [[New York metropolitan area]] and [[Greenwich, Connecticut]]; [[Chicago|Chicago, Illinois]]; [[Portland, Oregon]]; and areas between [[Maryland]], [[Virginia]], and [[West Virginia]]. 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 [[telephone carrier|carrier]]s or other indications in the following manner:

{| class="wikitable"
|-
!Digit||Area/Use||[[RBOC]]
|-
|0xx||unused||
|-
|1xx||[[New York (state)|New York]] & [[New England]]||[[NYNEX]] (now [[Verizon]] and [[Consolidated Communications]])
|-
|2xx||[[Mid-Atlantic States|Mid-Atlantic]]||[[Bell Atlantic]] (now Verizon and [[Frontier West Virginia|Frontier]])
|-
|3xx||[[Great Lakes region (North America)|Great Lakes]]||[[Ameritech]] (now [[AT&T Inc.]])
|-
|4xx||[[American Southeast|Southeast]]||[[BellSouth]] (now AT&T Inc.)
|-
|5xx||[[American South Central States|South-central]]||[[Southwestern Bell]] (now AT&T Inc.)
|-
|6xx||[[Pacific Northwest]], [[Midwest]], and [[Rocky Mountains]]||[[US West]] (now [[CenturyLink]])
|-
|7xx||[[California]] and [[Nevada]]||[[Pacific Bell]] (now AT&T Inc.)
|-
|8xx||Non-contiguous and international areas||
|-
|9xx||Other/Expansion||
|}

In addition to this list, two local carriers were made independent: [[Cincinnati Bell]] in the [[Cincinnati]] area, and [[Southern New England Telephone|SNET]] (a former unit of AT&T, sold to [[Frontier Communications|Frontier]]) in [[Connecticut]]. These were assigned LATAs in the 9xx range.

Since the [[breakup of the Bell System]] in 1984, however, some amount of [[deregulation]], as well as a number of phone company [[merger]]s, 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 calling|long-distance]] 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]] telephone routing databases between countries, LATAs were later defined for the provinces of [[Canada]], the other countries and territories of the [[North American Numbering Plan]], and [[Mexico]]. 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.
{{TOC right}}

==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]]. 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 [[enclave]]s. 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]] (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. [[Telcordia]] data may provide the most up-to-date details of LATA inclusions.

====Alabama====
* 476 [[Birmingham, Alabama|Birmingham]]
* 477 [[Huntsville, Alabama|Huntsville]]
* 478 [[Montgomery, Alabama|Montgomery]]
**Includes [[Georgetown, Quitman County, Georgia|Georgetown]], Georgia
* 480 [[Mobile, Alabama|Mobile]]
**Includes areas of [[Mississippi]] north of [[Pascagoula, Mississippi|Pascagoula]]
**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 [[Maryland]], 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 [[Virginia]], from [[Sterling, Virginia|Sterling]] to just north of [[Fredericksburg, Virginia|Fredericksburg]] (roughly [[Northern Virginia]])

====Florida====
[[File:Florida LATA.jpg|thumb|right|200px|Map of FL 5-digit LATAs]]
* 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 [[West Virginia]] 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 Dakota<ref name="fargo">Half of LATA 636 occupies eastern [[North Dakota]], the other half takes up the northwest quarter of [[Minnesota]].</ref>

====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:<!--DO NOT link "Central Missouri"—it redirects to the University of 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<ref name="fargo" />
*638 [[Bismarck, North Dakota|Bismarck]]
**Includes portions of [[Montana]] near [[Beach, North Dakota|Beach]] and [[Homesteaders 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 [[Cincinnati]]
** 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 [[Philadelphia]]<ref name="Delaware">LATA 228 includes all of [[Delaware]] as well as the metro area of [[Philadelphia, Pennsylvania|Philadelphia]], Pennsylvania.</ref>
*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 [[Mississippi]] 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 [[Virginia]] 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]], [[Kilgore, Texas|Kilgore]]
** 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<ref>American Samoa entered the [[North American Numbering Plan|NANP]] in October 2004 and presumably was allocated a LATA by that time. Telcordia LERG data suggests that American Samoa uses LATA 884.</ref>
*[[Guam]] - 871
*[[Northern Mariana Islands]] - 870
*[[Puerto Rico]] - 820
*[[U.S. Virgin Islands]] - 822
*[[Wake Island]] - 836

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

*[[Mexico]] - 838
*[[The Bahamas|Bahamas]] - 824
*[[Jamaica]] - 826
*[[Dominican Republic]] - 828
*Other [[Caribbean]] - 830
*[[Canada]] - 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 [[Canada]].

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]].<ref>{{Cite web|url=http://www.crtc.gc.ca/eng/archive/2007/dt2007-23.htm|title = Rogers Wireless Partnership Part VII application regarding the requirement for a central office code in each served exchange|date = 12 April 2007}}</ref> 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 centre]]s, one for each surrounding village, the local interconnect region normally includes each exchange in the city plus all downstream remotes of those exchanges.<ref>[http://www.localcallingguide.com/lca_listlir.php List of Canadian LIRs] on localcallingguide.com</ref> 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.

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.<ref>[http://www.localcallingguide.com/lca_exch.php?exch=172360 Rock Island QC] on localcallingguide.com</ref>

==See also==
*[[Local Exchange Routing Guide]]

==Notes==
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[[Category:Telephony]]