Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-493 1 Annapolis MD 876D ONVOY, LLC - MD 238   2025-09-28   
667-493 2 Annapolis MD 876D ONVOY, LLC - MD 238   2025-04-06   
667-493 3 Annapolis MD 876D ONVOY, LLC - MD 238   2026-01-10   
667-502 0 Columbia MD 876D ONVOY, LLC - MD 238   2025-10-13   
667-502 1 Columbia MD 876D ONVOY, LLC - MD 238   2026-01-04   
667-502 4 Columbia MD 876D ONVOY, LLC - MD 238   2026-06-29   
667-502 5 Columbia MD 876D ONVOY, LLC - MD 238   2025-03-02   
667-503 6 Baltimore MD 876D ONVOY, LLC - MD 238   2025-03-24   
667-503 7 Baltimore MD 876D ONVOY, LLC - MD 238   2025-03-24   
667-503 8 Baltimore MD 876D ONVOY, LLC - MD 238   2025-03-24   
667-503 9 Baltimore MD 876D ONVOY, LLC - MD 238   2025-03-24   
667-506 0 Baltimore MD 876D ONVOY, LLC - MD 238   2025-05-05   
667-506 1 Baltimore MD 876D ONVOY, LLC - MD 238   2025-05-05   
667-508 0 Woodlawn MD 876D ONVOY, LLC - MD 238   2025-07-20   
667-508 1 Woodlawn MD 876D ONVOY, LLC - MD 238   2025-09-06   
667-508 2 Woodlawn MD 876D ONVOY, LLC - MD 238   2025-10-12   
667-508 3 Woodlawn MD 876D ONVOY, LLC - MD 238   2026-06-22   
667-509 0 Severna Park MD 876D ONVOY, LLC - MD 238   2025-09-28   
667-509 3 Severna Park MD 876D ONVOY, LLC - MD 238   2026-06-22   
667-525 A Baltimore MD 876D ONVOY, LLC - MD 238   2025-10-04   
667-525 0 Baltimore MD 876D ONVOY, LLC - MD 238   2025-10-04   
667-525 6 Baltimore MD 876D ONVOY, LLC - MD 238   2025-11-08   
667-525 7 Baltimore MD 876D ONVOY, LLC - MD 238   2025-10-18   
667-525 8 Baltimore MD 876D ONVOY, LLC - MD 238   2025-10-18   
667-525 9 Baltimore MD 876D ONVOY, LLC - MD 238   2025-10-18   
667-527 8 Glen Burnie MD 876D ONVOY, LLC - MD 238   2026-01-04   
667-532 A Parkville MD 876D ONVOY, LLC - MD 238   2025-12-26   
667-532 0 Parkville MD 876D ONVOY, LLC - MD 238   2025-12-26   
667-538 A Churchville MD 876D ONVOY, LLC - MD 238   2026-03-20   
667-538 0 Churchville MD 876D ONVOY, LLC - MD 238   2026-03-20   
667-548 A Towson MD 876D ONVOY, LLC - MD 238   2026-07-23   
667-548 0 Towson MD 876D ONVOY, LLC - MD 238   2026-07-23   
667-567 A Havre de Grace MD 876D ONVOY, LLC - MD 238      
667-567 0 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-567 1 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-567 2 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-567 4 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-567 5 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-567 6 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-567 7 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-567 8 Havre de Grace MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-576 A Jarrettsville MD 876D ONVOY, LLC - MD 238      
667-576 2 Jarrettsville MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-576 3 Jarrettsville MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-576 4 Jarrettsville MD 876D ONVOY, LLC - MD 238   2023-11-24   
667-576 6 Jarrettsville MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-577 4 Elkton MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-577 6 Elkton MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-577 8 Elkton MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-577 9 Elkton MD 876D ONVOY, LLC - MD 238   2021-03-04   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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