Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 308

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-308 A Towson MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
667-308 0 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-07-20   
667-308 1 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-19   
667-308 2 Towson MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-07-24   
667-308 3 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-01   
667-308 4 Towson MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-08-15   
667-308 5 Towson MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-09-06   
667-308 6 Towson MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-09-06   
667-308 7 Towson MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2013-10-01   
667-308 8 Towson MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-01-11   
667-308 9 Towson MD   515J IP HORIZON LLC 238   2013-09-06   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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