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: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-331 A Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 0 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2021-08-23   
667-331 1 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-05-10   
667-331 2 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-05-10   
667-331 3 Towson MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-05-10   
667-331 4 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 238   2021-08-23   
667-331 5 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 6 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 7 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 8 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   
667-331 9 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2021-08-22   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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