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
667-600 6 Baltimore MD 876D ONVOY, LLC - MD 238   2016-01-02   
667-644 2 Severna Park MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-644 3 Severna Park MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-644 7 Severna Park MD 876D ONVOY, LLC - MD 238   2021-09-25   
667-644 9 Severna Park MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-646 2 Annapolis MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-646 5 Annapolis MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-647 2 North East MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-647 3 North East MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-647 8 North East MD 876D ONVOY, LLC - MD 238   2025-12-14   
667-656 2 Edgewood MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-656 3 Edgewood MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-656 5 Edgewood MD 876D ONVOY, LLC - MD 238   2021-12-19   
667-657 A Chase MD 876D ONVOY, LLC - MD 238      
667-657 2 Chase MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-657 6 Chase MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-666 A West River MD 876D ONVOY, LLC - MD 238      
667-666 0 West River MD 876D ONVOY, LLC - MD 238   2016-06-13   
667-666 1 West River MD 876D ONVOY, LLC - MD 238   2016-06-13   
667-666 2 West River MD 876D ONVOY, LLC - MD 238   2016-08-05   
667-666 3 West River MD 876D ONVOY, LLC - MD 238   2016-08-05   
667-666 6 West River MD 876D ONVOY, LLC - MD 238   2016-06-02   
667-667 A Pikesville MD 876D ONVOY, LLC - MD 238   2025-10-16   
667-667 0 Pikesville MD 876D ONVOY, LLC - MD 238   2025-10-16   
667-667 6 Pikesville MD 876D ONVOY, LLC - MD 238   2025-10-16   
667-667 7 Pikesville MD 876D ONVOY, LLC - MD 238   2025-10-16   
667-667 8 Pikesville MD 876D ONVOY, LLC - MD 238   2025-10-16   
667-668 2 Fallston MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-668 3 Fallston MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-668 8 Fallston MD 876D ONVOY, LLC - MD 238   2026-01-04   
667-677 A Baltimore MD 876D ONVOY, LLC - MD 238      
667-677 5 Baltimore MD 876D ONVOY, LLC - MD 238   2015-06-09   
667-677 6 Baltimore MD 876D ONVOY, LLC - MD 238   2015-06-09   
667-677 7 Baltimore MD 876D ONVOY, LLC - MD 238   2015-06-09   
667-677 8 Baltimore MD 876D ONVOY, LLC - MD 238   2015-06-09   
667-678 A Columbia MD 876D ONVOY, LLC - MD 238      
667-678 2 Columbia MD 876D ONVOY, LLC - MD 238   2021-10-15   
667-688 3 Parkville MD 876D ONVOY, LLC - MD 238   2020-12-03   
667-688 4 Parkville MD 876D ONVOY, LLC - MD 238   2020-12-03   
667-688 5 Parkville MD 876D ONVOY, LLC - MD 238   2020-12-03   
667-688 6 Parkville MD 876D ONVOY, LLC - MD 238   2020-12-03   
667-701 0 Elkridge MD 876D ONVOY, LLC - MD 238   2015-12-12   
667-701 1 Elkridge MD 876D ONVOY, LLC - MD 238   2016-01-29   
667-701 3 Elkridge MD 876D ONVOY, LLC - MD 238   2016-03-11   
667-701 4 Elkridge MD 876D ONVOY, LLC - MD 238   2016-03-11   
667-746 0 Glenwood MD 876D ONVOY, LLC - MD 238   2023-10-22   
667-746 1 Glenwood MD 876D ONVOY, LLC - MD 238   2023-10-22   
667-746 2 Glenwood MD 876D ONVOY, LLC - MD 238   2023-10-22   
667-746 3 Glenwood MD 876D ONVOY, LLC - MD 238   2023-10-22   
667-746 4 Glenwood MD 876D ONVOY, LLC - MD 238   2023-10-22   

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

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