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
667-345 9 Catonsville MD 876D ONVOY, LLC - MD 238   2021-04-29   
667-353 4 Cardiff MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-353 5 Cardiff MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-353 7 Cardiff MD 876D ONVOY, LLC - MD 238   2021-12-19   
667-356 A Severn MD 876D ONVOY, LLC - MD 238      
667-356 4 Severn MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-356 5 Severn MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-356 6 Severn MD 876D ONVOY, LLC - MD 238   2021-09-25   
667-356 7 Severn MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-359 3 Columbia MD 876D ONVOY, LLC - MD 238   2022-04-25   
667-359 4 Columbia MD 876D ONVOY, LLC - MD 238   2022-12-18   
667-360 A Odenton MD 876D ONVOY, LLC - MD 238      
667-360 0 Odenton MD 876D ONVOY, LLC - MD 238   2024-04-05   
667-360 1 Odenton MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-360 2 Odenton MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-360 5 Odenton MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-360 6 Odenton MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-360 9 Odenton MD 876D ONVOY, LLC - MD 238   2024-04-05   
667-363 A Sherwood Forest MD 876D ONVOY, LLC - MD 238      
667-363 4 Sherwood Forest MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-363 5 Sherwood Forest MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-363 6 Sherwood Forest MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-366 7 Hampstead MD 876D ONVOY, LLC - MD 238   2019-02-19   
667-366 9 Hampstead MD 876D ONVOY, LLC - MD 238   2019-02-19   
667-367 5 Westminster MD 876D ONVOY, LLC - MD 238   2016-01-22   
667-368 1 Elkton MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-368 2 Elkton MD 876D ONVOY, LLC - MD 238   2022-01-09   
667-368 5 Elkton MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-370 A Parkton MD 876D ONVOY, LLC - MD 238      
667-370 0 Parkton MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-370 1 Parkton MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-370 2 Parkton MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-370 3 Parkton MD 876D ONVOY, LLC - MD 238   2021-05-23   
667-370 7 Parkton MD 876D ONVOY, LLC - MD 238   2021-05-22   
667-371 2 Ellicott City MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-371 5 Ellicott City MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-371 8 Ellicott City MD 876D ONVOY, LLC - MD 238   2022-04-25   
667-374 3 Waterloo MD 876D ONVOY, LLC - MD 238   2025-02-01   
667-374 7 Waterloo MD 876D ONVOY, LLC - MD 238   2022-09-25   
667-375 3 Chase MD 876D ONVOY, LLC - MD 238   2022-04-25   
667-375 6 Chase MD 876D ONVOY, LLC - MD 238   2023-10-22   
667-375 7 Chase MD 876D ONVOY, LLC - MD 238   2023-10-22   
667-378 2 Essex MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-380 A Annapolis MD 876D ONVOY, LLC - MD 238      
667-380 2 Annapolis MD 876D ONVOY, LLC - MD 238   2021-10-31   
667-383 7 Towson MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-383 8 Towson MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-385 0 Solomons MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-385 1 Solomons MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-385 2 Solomons MD 876D ONVOY, LLC - MD 238   2023-08-10   

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

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