Local Calling Guide

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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-337 A Centreville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-337 0 Centreville MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2021-08-14   
667-337 1 Centreville MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-02-05   
667-337 2 Centreville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-07-12   
667-337 3 Centreville MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2024-01-06   
667-337 4 Centreville MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-27   
667-337 5 Centreville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-09-25   
667-337 6 Centreville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-05-17   
667-337 7 Centreville MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2021-07-12   
667-337 8 Centreville MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-02-05   
667-337 9 Centreville MD SLBRMD90DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 242   2021-12-25   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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