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: 341

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-341 A Delmar MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
667-341 0 Delmar MD   876D ONVOY, LLC - MD 242   2022-11-28   
667-341 1 Delmar MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2022-11-18   
667-341 2 Delmar MD   876D ONVOY, LLC - MD 242   2021-10-31   
667-341 3 Delmar MD   624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-341 4 Delmar MD   624H ONVOY SPECTRUM, LLC 242   2021-11-15   
667-341 5 Delmar MD   876D ONVOY, LLC - MD 242   2021-12-20   
667-341 6 Delmar MD   876D ONVOY, LLC - MD 242   2021-12-20   
667-341 7 Delmar MD   624H ONVOY SPECTRUM, LLC 242   2022-03-14   
667-341 8 Delmar MD   624H ONVOY SPECTRUM, LLC 242   2022-03-14   
667-341 9 Delmar MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2025-12-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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