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
667-239 8 Baltimore MD 876D ONVOY, LLC - MD 238   2014-10-06   
667-239 9 Baltimore MD 876D ONVOY, LLC - MD 238   2014-10-06   
667-240 8 Columbia MD 876D ONVOY, LLC - MD 238   2018-05-27   
667-256 8 Aberdeen MD 876D ONVOY, LLC - MD 236   2019-02-19   
667-256 9 Aberdeen MD 876D ONVOY, LLC - MD 236   2019-02-19   
667-257 5 Columbia MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-260 A Baltimore MD 876D ONVOY, LLC - MD 238      
667-260 0 Baltimore MD 876D ONVOY, LLC - MD 238   2025-01-06   
667-260 1 Baltimore MD 876D ONVOY, LLC - MD 238   2025-01-06   
667-260 6 Baltimore MD 876D ONVOY, LLC - MD 238   2016-02-12   
667-261 6 Columbia MD 876D ONVOY, LLC - MD 238   2021-01-11   
667-261 7 Columbia MD 876D ONVOY, LLC - MD 238   2021-01-11   
667-262 6 Baltimore MD 876D ONVOY, LLC - MD 238   2019-11-17   
667-262 7 Baltimore MD 876D ONVOY, LLC - MD 238   2019-11-17   
667-263 3 Dundalk MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-263 4 Dundalk MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-263 6 Dundalk MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-268 7 Darlington MD 876D ONVOY, LLC - MD 238   2022-12-03   
667-272 0 Westminster MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-275 3 Towson MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-275 4 Towson MD 876D ONVOY, LLC - MD 238   2021-07-12   
667-276 6 Bel Air MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-276 7 Bel Air MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-276 8 Bel Air MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 4 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 5 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 6 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-280 9 Ellicott City MD 876D ONVOY, LLC - MD 238   2021-09-23   
667-283 2 Fork MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-283 3 Fork MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-283 4 Fork MD 876D ONVOY, LLC - MD 238   2021-07-11   
667-290 6 Baltimore MD 876D ONVOY, LLC - MD 238   2020-12-26   
667-290 7 Baltimore MD 876D ONVOY, LLC - MD 238   2020-12-26   
667-290 8 Baltimore MD 876D ONVOY, LLC - MD 238   2021-02-18   
667-290 9 Baltimore MD 876D ONVOY, LLC - MD 238   2021-02-18   
667-294 2 Towson MD 876D ONVOY, LLC - MD 238   2025-09-28   
667-295 3 Crofton MD 876D ONVOY, LLC - MD 238   2023-08-10   
667-295 7 Crofton MD 876D ONVOY, LLC - MD 238   2019-02-19   
667-295 8 Crofton MD 876D ONVOY, LLC - MD 238   2019-02-19   
667-296 0 Reisterstown MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-296 1 Reisterstown MD 876D ONVOY, LLC - MD 238   2021-03-04   
667-296 5 Reisterstown MD 876D ONVOY, LLC - MD 238   2025-03-07   
667-296 9 Reisterstown MD 876D ONVOY, LLC - MD 238   2022-10-16   
667-297 3 Edgewood MD 876D ONVOY, LLC - MD 238   2021-05-21   
667-297 5 Edgewood MD 876D ONVOY, LLC - MD 238   2021-04-29   
667-297 6 Edgewood MD 876D ONVOY, LLC - MD 238   2021-01-31   
667-297 7 Edgewood MD 876D ONVOY, LLC - MD 238   2021-01-31   
667-297 8 Edgewood MD 876D ONVOY, LLC - MD 238   2021-04-29   
667-301 2 Prince Frederick MD 876D ONVOY, LLC - MD 238   2021-03-27   
667-301 3 Prince Frederick MD 876D ONVOY, LLC - MD 238   2021-03-27   

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

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