LATA 238

Maryland

Area codes

6

Rate centres

63

Carriers

60

Prefix blocks

14,175

What a LATA is

A Local Access and Transport Area is the region a call is routed within before it becomes long-haul. The boundaries were drawn when the Bell System was broken up in 1984: a local carrier could carry a call inside its LATA, and a long-distance carrier had to take it across one. The division still shapes how calls are routed and rated today, which is why every prefix block on this site carries a LATA.

Area Codes in LATA 238

227240301410443667

Carriers in LATA 238

60 carriers hold blocks here. The 25 largest are shown.

CarrierOCNBlocksShare
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC68551,79112.6%
VERIZON MARYLAND, INC.92121,77712.5%
NEW CINGULAR WIRELESS PCS, LLC - DC40361,69612.0%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD63951,2999.2%
ONVOY, LLC - MD876D1,2779.0%
PAETEC ITEL, LLC829J8886.3%
BANDWIDTH.COM CLEC, LLC - MD071F8225.8%
CORE COMMUNICATIONS, INC.- MD25936194.4%
LEVEL 3 COMMUNICATIONS, LLC - MD61195263.7%
COMCAST IP PHONE, LLC318J4633.3%
METROPCS, INC.55624603.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC72293652.6%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD72283052.2%
ONVOY SPECTRUM, LLC624H2812.0%
TELEPORT COMMUNICATIONS AMERICA, LLC - MD73252812.0%
PEERLESS NETWORK OF MARYLAND, LLC568G2431.7%
IP HORIZON LLC515J1010.7%
TERRA NOVA TELECOM INC.145J1010.7%
LEVEL 3 TELECOM OF MARYLAND, LLC - MD7591880.6%
HD CARRIER LLC321J820.6%
TELNYX LLC073H780.6%
CENTURYLINK COMMUNICATIONS, LLC508J740.5%
YMAX COMMUNICATIONS CORP. - MD281E650.5%
COMMIO, LLC939H490.3%
BOOST SUBSCRIBERCO L.L.C.490J480.3%

Rate Centres in LATA 238

63 rate centres. search them all.

  • Annapolis MD · 410, 443, 667
  • Arbutus MD · 410, 443, 667
  • Armiger-Gibson Island MD · 410, 443, 667
  • Ashton (Baltimore LATA) MD · 227, 240, 301
  • Baltimore MD · 301, 410, 443, 667
  • Bel Air MD · 410, 443, 667
  • Brooklyn Park-Linthicum MD · 410, 443, 667
  • Cardiff MD · 410, 443, 667
  • Catonsville MD · 410, 443, 667
  • Chase MD · 410, 443, 667
  • Churchville MD · 410, 443, 667
  • Cockeysville MD · 410, 443, 667
  • Columbia MD · 410, 443, 667
  • Crofton MD · 410, 443, 667
  • Darlington MD · 410, 443, 667
  • Dundalk MD · 410, 443, 667
  • Edgewood MD · 410, 443, 667
  • Elkridge MD · 410, 443, 667
  • Elkton MD · 410, 443, 667
  • Ellicott City MD · 410, 443, 667
  • Essex MD · 410, 443, 667
  • Fallston MD · 410, 443, 667
  • Fork MD · 410, 443, 667
  • Glen Burnie MD · 410, 443, 667
  • Glenwood MD · 410, 443, 667
  • Hampstead MD · 410, 443, 667
  • Havre de Grace MD · 410, 443, 667
  • Jarrettsville MD · 410, 443, 667
  • Jarrettsville 941 MD · 410
  • Laurel (Baltimore LATA) MD · 240, 301
  • Millersville MD · 410, 443, 667
  • New Windsor MD · 410, 443, 667
  • North Beach MD · 410, 443, 667
  • North East MD · 410, 443, 667
  • Odenton MD · 410, 443, 667
  • Parkton MD · 410, 443, 667
  • Parkville MD · 410, 443, 667
  • Perryville MD · 410, 443, 667
  • Pikesville MD · 410, 443, 667
  • Port Deposit MD · 410, 443, 667
  • Prince Frederick MD · 410, 443, 667
  • Randallstown MD · 410, 443, 667
  • Reisterstown MD · 410, 443, 667
  • Rising Sun MD · 410, 667
  • Severn MD · 410, 443, 667
  • Severna Park MD · 410, 443, 667
  • Sherwood Forest MD · 410, 443, 667
  • Silver Run MD · 410, 443, 667
  • Solomons MD · 410, 443, 667
  • Sparks-Glencoe MD · 410, 443, 667
  • Sparrows Point MD · 410, 443, 667
  • Sykesville MD · 410, 443, 667
  • Taneytown MD · 410, 443, 667
  • Towson MD · 410, 443, 667
  • Union Bridge MD · 410, 443, 667
  • Washington Zone 13 (Baltimore LATA) MD · 240, 301
  • Washington Zone 14 (Baltimore LATA) MD · 240, 301
  • Washington Zone 15 (Baltimore LATA) MD · 227, 240, 301
  • Waterloo MD · 410, 443, 667
  • West River MD · 410, 443, 667
  • Westminster MD · 410, 443, 667
  • Woodlawn MD · 410, 443, 667
  • Worthington MD · 410, 443, 667