Local Calling Guide

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OCN: 876D ONVOY, LLC - MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-452 6 Baltimore MD BLTMMDCH42Z  238   2024-02-24   
443-453 A Baltimore MD BLTMMDCH42Z  238      
443-453 0 Baltimore MD BLTMMDCH42Z  238   2007-12-03   
443-455 9 Baltimore MD BLTMMDCH42Z  238   2024-02-24   
443-456 4 Edgewood MD BLTMMDCH42Z  238   2016-01-21   
443-457 2 Brooklyn Park-Linthicum MD BLTMMDCH42Z  238   2016-03-24   
443-457 9 Brooklyn Park-Linthicum MD BLTMMDCH42Z  238   2016-03-24   
443-464 0 Churchville MD BLTMMDCH42Z  238   2015-10-04   
443-464 1 Churchville MD BLTMMDCH42Z  238   2016-03-25   
443-464 2 Churchville MD BLTMMDCH42Z  238   2016-03-25   
443-484 0 Edgewood MD BLTMMDCH42Z  238   2021-07-11   
443-486 1 Prince Frederick MD BLTMMDCH42Z  238   2016-03-10   
443-486 3 Prince Frederick MD BLTMMDCH42Z  238   2016-03-10   
443-486 6 Prince Frederick MD BLTMMDCH42Z  238   2021-09-23   
443-487 0 Westminster MD BLTMMDCH42Z  238   2022-10-16   
443-489 2 Chase MD BLTMMDCH42Z  238   2016-03-24   
443-489 4 Chase MD BLTMMDCH42Z  238   2016-03-24   
443-491 A Parkton MD   238      
443-491 9 Parkton MD BLTMMDCH42Z  238   2012-10-07   
443-493 7 Delmar MD SLBRMDSBXVX  242   2017-04-13   
443-493 8 Delmar MD SLBRMDSBXVX  242   2021-04-02   
443-494 2 Millersville MD BLTMMDCH42Z  238   2012-10-07   
443-494 5 Millersville MD BLTMMDCH42Z  238   2021-04-02   
443-495 6 Parkville MD BLTMMDCH42Z  238   2018-05-27   
443-496 3 Easton MD SLBRMDSBXVX  242   2018-07-19   
443-499 5 Jarrettsville MD BLTMMDCH42Z  238   2023-10-22   
443-499 9 Jarrettsville MD BLTMMDCH42Z  238   2012-10-07   
443-501 2 Pikesville MD BLTMMDCH42Z  238   2012-10-08   
443-508 7 Hampstead MD BLTMMDCH42Z  238   2012-10-07   
443-512 2 Edgewood MD BLTMMDCH42Z  238   2014-09-05   
443-513 2 Berlin MD SLBRMDSBXVX  242   2020-08-09   
443-516 A Sykesville MD   238      
443-516 8 Sykesville MD BLTMMDCH42Z  238   2016-03-28   
443-516 9 Sykesville MD BLTMMDCH42Z  238   2016-03-28   
443-526 3 Havre de Grace MD BLTMMDCH42Z  238   2016-03-24   
443-526 4 Havre de Grace MD BLTMMDCH42Z  238   2016-03-24   
443-526 7 Havre de Grace MD BLTMMDCH42Z  238   2015-08-01   
443-526 8 Havre de Grace MD BLTMMDCH42Z  238   2015-08-01   
443-530 5 Dundalk MD BLTMMDCH42Z  238   2016-01-22   
443-533 5 Jarrettsville MD BLTMMDCH42Z  238   2016-04-04   
443-533 6 Jarrettsville MD BLTMMDCH42Z  238   2016-04-04   
443-543 8 Arbutus MD BLTMMDCH42Z  238   2014-10-06   
443-543 9 Arbutus MD BLTMMDCH42Z  238   2014-10-06   
443-545 0 Columbia MD BLTMMDCH42Z  238   2021-09-25   
443-545 7 Columbia MD BLTMMDCH42Z  238   2016-03-03   
443-550 7 North Beach MD BLTMMDCH42Z  238   2012-10-07   
443-551 0 Woodlawn MD BLTMMDCH42Z  238   2024-05-11   
443-551 2 Woodlawn MD BLTMMDCH42Z  238   2024-07-05   
443-551 6 Woodlawn MD   238   2025-02-01   
443-551 7 Woodlawn MD   238   2025-02-01   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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