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: 383

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-383 A Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-383 0 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-04-03   
667-383 1 Towson MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-03-20   
667-383 2 Towson MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-03-20   
667-383 4 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-04-03   
667-383 5 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-383 6 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-19   
667-383 7 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-10-16   
667-383 8 Towson MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-10-16   
667-383 9 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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