Local Calling Guide

Area code/prefix search

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OCN: 876D ONVOY, LLC - MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
667-480 0 Waterloo (Washington DC LATA) MD VINNVACBDS0  236   2024-05-17   
667-484 6 Westminster MD   238   2026-01-11   
667-484 8 Westminster MD   238   2025-11-28   
667-484 9 Westminster MD   238   2025-04-06   
667-485 1 Cambridge MD SLBRMDSBXVX  242   2024-07-21   
667-489 A Hampstead MD BLTMMDCH42Z  238   2024-08-04   
667-489 0 Hampstead MD BLTMMDCH42Z  238   2024-08-04   
667-492 0 Severn MD BLTMMDCH42Z  238   2024-07-23   
667-492 8 Severn MD BLTMMDCH42Z  238   2024-07-23   
667-492 9 Severn MD BLTMMDCH42Z  238   2024-07-23   
667-493 1 Annapolis MD   238   2025-09-28   
667-493 2 Annapolis MD   238   2025-04-06   
667-493 3 Annapolis MD   238   2026-01-10   
667-497 0 Ocean City MD   242   2025-05-10   
667-502 0 Columbia MD   238   2025-10-13   
667-502 1 Columbia MD   238   2026-01-04   
667-502 4 Columbia MD   238   2026-06-29   
667-502 5 Columbia MD   238   2025-03-02   
667-503 6 Baltimore MD   238   2025-03-24   
667-503 7 Baltimore MD   238   2025-03-24   
667-503 8 Baltimore MD   238   2025-03-24   
667-503 9 Baltimore MD   238   2025-03-24   
667-506 0 Baltimore MD   238   2025-05-05   
667-506 1 Baltimore MD   238   2025-05-05   
667-508 0 Woodlawn MD   238   2025-07-20   
667-508 1 Woodlawn MD   238   2025-09-06   
667-508 2 Woodlawn MD   238   2025-10-12   
667-508 3 Woodlawn MD   238   2026-06-22   
667-509 0 Severna Park MD   238   2025-09-28   
667-509 3 Severna Park MD   238   2026-06-22   
667-525 A Baltimore MD   238   2025-10-04   
667-525 0 Baltimore MD   238   2025-10-04   
667-525 6 Baltimore MD   238   2025-11-08   
667-525 7 Baltimore MD   238   2025-10-18   
667-525 8 Baltimore MD   238   2025-10-18   
667-525 9 Baltimore MD   238   2025-10-18   
667-526 2 Centreville MD SLBRMDSBXVX  242   2024-03-07   
667-526 4 Centreville MD SLBRMDSBXVX  242   2024-06-23   
667-527 8 Glen Burnie MD   238   2026-01-04   
667-529 4 Hurlock MD SLBRMDSBXVX  242   2021-08-06   
667-529 5 Hurlock MD SLBRMDSBXVX  242   2021-08-06   
667-529 6 Hurlock MD SLBRMDSBXVX  242   2022-03-13   
667-529 7 Hurlock MD SLBRMDSBXVX  242   2022-03-13   
667-532 A Parkville MD   238   2025-12-26   
667-532 0 Parkville MD   238   2025-12-26   
667-538 A Churchville MD   238   2026-03-20   
667-538 0 Churchville MD   238   2026-03-20   
667-545 6 Warwick MD SLBRMDSBXVX  242   2021-04-02   
667-545 7 Warwick MD SLBRMDSBXVX  242   2021-04-02   
667-545 8 Warwick MD SLBRMDSBXVX  242   2019-03-10   

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Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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