AT&T Southwest -- -- A planning tool designed to help carriers identify the most efficient AT&T Southwest tandem to assign their codes in the Telcordia LERG, based on the Rate Center being served. This file includes the geographic map by state. Download the data file by region Rate Center specific information AT&T Southwest has developed a "" (Plan) to optimize interconnection in its network and minimize capacity bottlenecks at constrained tandems. The Plan is intended to ensure Competitive Local Exchange Carriers and Wireless Service Providers adequate sizing of trunks and available capacity for additional growth at all AT&T Southwest tandems. The is a recommendation for carriers to use when designing their network to identify the most efficient AT&T Southwest tandem in which to assign their codes in the LERG based on the Rate Areas being served. The AT&T Southwest identifies every AT&T rate center in a LATA in which AT&T is the Local Exchange Carrier providing service. The Plan principally identifies the AT&T Southwest Tandem Homing Arrangement by Rate Area, thereby allowing Carrier's homing architectures to resemble AT&T's homing architecture. AT&T Southwest is recommending Carriers utilize the tandem associated with the rate center, as identified in the Plan when entering the tandem in Telcordia's Routing Database (LERG) for each NXX allocated to the Carrier. Published Date: 07/01/13 AT&T logo and all other AT&T marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated
AT&T Southwest Southwest States LATA's 534 524 LATA's 532 522 521 520 520, ST LOUIS MISSOURI 521, WESTPHALIA MISSOURI 522, SPRINGFIELD MISSOURI 524, KANSAS CITY MISSOURI 526, FORT SMITH ARKANSAS 528, LITTLE ROCK ARKANSAS 530, PINE BLUFF ARKANSAS 532, WICHITA KANSAS 534, TOPEKA KANSAS 536, OKLAHOMA CITY OKLAHOMA 538, TULSA OKLAHOMA 540, EL PASO TEXAS 542, MIDLAND TEXAS 544, LUBBOCK TEXAS 546, AMARILLO TEXAS 548, WICHITA FALLS TEXAS 550, ABILENE TEXAS 552, DALLAS TEXAS 554, LONGVIEW TEXAS 556, WACO TEXAS 558, AUSTIN TEXAS 560, HOUSTON TEXAS 562, BEAUMONT TEXAS 564, CORPUS CHRISTI TEXAS 566, SAN ANTONIO TEXAS 568, BROWNSVILLE TEXAS 570, HEARNE TEXAS 540 542 546 544 538 526 536 528 548 530 550 552 554 556 570 558 560 562 566 564 564 564 568 568 568 560 560
Arkansas LATA's 526 528 530 LATA's 526, FORT SMITH ARKANSAS 528, LITTLE ROCK ARKANSAS 530, PINE BLUFF ARKANSAS
LATA 526 - Fort Smith AR BENTONVILLE GRAVETTE EUREKA SPRINGS ROGERS SPRINGDALE HINDSVILLE FAYETTEVILLE NATURAL DAM VAN BUREN Rate Centers w/tandem FTSMARSU03T FYVLARHI02T FORT SMITH
LATA 526 - Fort Smith AR - Oklahoma Rate Areas WUNIONTOWN MOFFETT CEDARS FTSMARSU03T
LATA 528 - Little Rock - West CLEVELAND CENTER RIDGE CONCORD BATESVILLEOIL TROUGH GRUBBS NEWPORT HARRISBURG GREERS FERRY HEBER SPRINGS TUPELO HICKORY RIDGE SEARCY WYNNE MORRILTON CONWAY BEEBE FORREST CITY PARON PALARM SYLVAN HILLS SHERWOOD PINNACLE LONOKE FERNDALE LITTLE ROCK BRINKLEY MORO MARIANNA MENA JESSIEVILLE SCOTT BRYANT COLLEGEVILLEWRIGHTSVILLE LONSDALE SPRING LAKE BENTON BAUXITE CRYSTAL SPRINGSHOT SPRINGS JONES MILLS HELENA MALVERN ARKADELPHIA Rate Centers w/tandem JNBOARMA02T LTRKARFR02T ASHDOWN NASHVILLE HOPE GURDON BODCAW
LATA 528 - Little Rock - East BLACK ROCK WALNUT RIDGE PARAGOULD CAVE CITY BLYTHEVILLE CASH JONESBORO DELL LUXORA BATESVILLE NEWARK OSCEOLA CLEVELAND CENTER RIDGE CONCORD GREERS FERRY HEBER SPRINGS SEARCY GRUBBS WILSON (MISSISSIPPI) HARRISBURG OIL TROUGHNEWPORT JOINER TUPELO CHERRY VALLEY TURRELL HICKORY RIDGE EARLE MARION WYNNE PARKIN CRAWFORDSVILLE MORRILTON CONWAY BEEBE WEST MEMPHIS BLACKFISH LAKE FORREST CITY HUGHES PALARM SYLVAN HILLS SHERWOOD PINNACLE LONOKE PARON FERNDALE LITTLE ROCK JESSIEVILLE SCOTT BRYANT COLLEGEVILLEWRIGHTSVILLE LONSDALE SPRING LAKE BENTON BAUXITE HOT SPRINGS JONES MILLS MALVERN BRINKLEY MORO MARIANNA HELENA Rate Centers w/tandem JNBOARMA02T LTRKARFR02T
LATA 528 - Little Rock AR - Missouri Rate Area BLYTHEVILLE Rate Centers w/tandem JNBOARMA02T LTRKARFR02T
LATA 528 - Little Rock AR - Oklahoma Rate Area NEW HOME Rate Centers w/tandem JNBOARMA02T LTRKARFR02T
LATA 530 - Pine Bluff ALTHEIMER PINE BLUFF GRADY WATSON PNBLARJE02T CHIDESTER CAMDEN WARREN WILMAR MONTICELLO MCGEHEE ARKANSAS CITY DERMOTT STEPHENS STAMPS MAGNOLIA MCNEIL MOUNT HOLLY VILLAGE SMACKOVER CALION NORPHLET URBANA HAMBURG PORTLAND LAKE VILLAGE MACEDONIA EL DORADO STRONG EUDORA HUTTIG