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: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-375 A Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
667-375 0 Chase MD BLTQMD013MD  939H COMMIO, LLC 238   2022-11-06   
667-375 1 Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-07-22   
667-375 2 Chase MD BLTQMD01BMD  516J TON80 COMMUNICATIONS, LLC 238   2022-04-01   
667-375 3 Chase MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-04-25   
667-375 4 Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-30   
667-375 5 Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2023-09-30   
667-375 6 Chase MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-10-22   
667-375 7 Chase MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-10-22   
667-375 8 Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   
667-375 9 Chase MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2022-01-21   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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