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
667-456 4 Dundalk MD 876D ONVOY, LLC - MD 238   2024-12-02   
667-456 5 Dundalk MD 876D ONVOY, LLC - MD 238   2024-12-02   
667-456 6 Dundalk MD 876D ONVOY, LLC - MD 238   2024-12-02   
667-456 8 Dundalk MD 876D ONVOY, LLC - MD 238   2024-10-21   
667-458 0 Annapolis MD 876D ONVOY, LLC - MD 238   2016-08-05   
667-460 0 Pikesville MD 876D ONVOY, LLC - MD 238   2024-02-25   
667-460 1 Pikesville MD 876D ONVOY, LLC - MD 238   2024-02-25   
667-460 2 Pikesville MD 876D ONVOY, LLC - MD 238   2024-02-25   
667-462 2 Elkton MD 876D ONVOY, LLC - MD 238   2024-03-01   
667-462 3 Elkton MD 876D ONVOY, LLC - MD 238   2024-04-04   
667-464 3 Baltimore MD 876D ONVOY, LLC - MD 238   2022-05-22   
667-464 4 Baltimore MD 876D ONVOY, LLC - MD 238   2022-05-22   
667-465 5 Aberdeen MD 876D ONVOY, LLC - MD 236   2024-07-06   
667-469 A Bel Air MD 876D ONVOY, LLC - MD 238   2024-04-04   
667-469 0 Bel Air MD 876D ONVOY, LLC - MD 238   2024-04-04   
667-469 1 Bel Air MD 876D ONVOY, LLC - MD 238   2024-04-04   
667-470 2 Glen Burnie MD 876D ONVOY, LLC - MD 238   2024-07-06   
667-474 A Armiger-Gibson Island MD 876D ONVOY, LLC - MD 238   2024-05-11   
667-474 0 Armiger-Gibson Island MD 876D ONVOY, LLC - MD 238   2024-05-11   
667-474 1 Armiger-Gibson Island MD 876D ONVOY, LLC - MD 238   2024-05-11   
667-474 2 Armiger-Gibson Island MD 876D ONVOY, LLC - MD 238   2024-05-11   
667-474 9 Armiger-Gibson Island MD 876D ONVOY, LLC - MD 238   2025-12-14   
667-475 A Crofton MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-475 0 Crofton MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-476 A Glenwood MD 876D ONVOY, LLC - MD 238      
667-476 2 Glenwood MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-476 3 Glenwood MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-476 6 Glenwood MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-476 7 Glenwood MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-476 8 Glenwood MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-476 9 Glenwood MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-477 A Hampstead MD 876D ONVOY, LLC - MD 238      
667-477 5 Hampstead MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-477 6 Hampstead MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-477 7 Hampstead MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-477 8 Hampstead MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-478 A Sykesville MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-478 0 Sykesville MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-478 1 Sykesville MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-479 A Ellicott City MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-479 0 Ellicott City MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-479 1 Ellicott City MD 876D ONVOY, LLC - MD 238   2024-05-12   
667-484 6 Westminster MD 876D ONVOY, LLC - MD 238   2026-01-11   
667-484 8 Westminster MD 876D ONVOY, LLC - MD 238   2025-11-28   
667-484 9 Westminster MD 876D ONVOY, LLC - MD 238   2025-04-06   
667-489 A Hampstead MD 876D ONVOY, LLC - MD 238   2024-08-04   
667-489 0 Hampstead MD 876D ONVOY, LLC - MD 238   2024-08-04   
667-492 0 Severn MD 876D ONVOY, LLC - MD 238   2024-07-23   
667-492 8 Severn MD 876D ONVOY, LLC - MD 238   2024-07-23   
667-492 9 Severn MD 876D ONVOY, LLC - MD 238   2024-07-23   

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

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