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
443-792 8 Brooklyn Park-Linthicum MD   238   2014-10-07   
443-806 7 Baltimore MD   238   2024-06-23   
443-806 8 Baltimore MD   238   2024-06-23   
443-806 9 Baltimore MD   238   2024-06-23   
443-815 4 Essex MD   238   2014-11-01   
443-815 7 Essex MD   238   2014-11-01   
443-816 9 Severna Park MD   238   2025-04-06   
443-819 1 Bel Air MD   238   2015-07-30   
443-819 2 Bel Air MD   238   2015-07-30   
443-830 3 Catonsville MD   238   2021-09-23   
443-830 5 Catonsville MD   238   2021-07-11   
443-830 6 Catonsville MD   238   2021-07-11   
443-836 4 Baltimore MD   238   2018-12-13   
443-836 5 Baltimore MD   238   2020-02-13   
443-843 0 Havre de Grace MD   238   2012-10-07   
443-853 8 Baltimore MD   238   2018-12-13   
443-853 9 Baltimore MD   238   2018-12-13   
443-863 2 Baltimore MD   238   2010-10-20   
443-863 3 Baltimore MD   238   2010-10-20   
443-868 2 Essex MD   238   2014-09-01   
443-870 4 Pikesville MD   238   2014-12-31   
443-870 5 Pikesville MD   238   2014-12-31   
443-873 A Baltimore MD BLTMMDCH42Z  238      
443-873 2 Baltimore MD   238   2010-04-16   
443-879 2 Dundalk MD   238   2014-09-05   
443-879 7 Dundalk MD   238   2014-12-31   
443-879 8 Dundalk MD   238   2014-12-31   
443-888 0 Princess Anne MD   242   2017-04-14   
443-888 2 Princess Anne MD   242   2019-03-10   
443-888 3 Princess Anne MD   242   2019-03-10   
443-888 5 Princess Anne MD   242   2023-10-22   
443-892 7 New Windsor MD   238   2012-10-07   
443-898 4 Pikesville MD   238   2014-09-06   
443-899 1 Waterloo MD   238   2021-05-21   
443-899 3 Waterloo MD   238   2021-07-12   
443-901 3 Towson MD   238   2020-08-09   
443-901 4 Towson MD   238   2020-08-09   
443-901 5 Towson MD   238   2020-08-09   
443-903 2 Bel Air MD   238   2012-10-07   
443-903 3 Bel Air MD   238   2016-01-18   
443-909 1 Baltimore MD   238   2024-07-12   
443-909 2 Baltimore MD   238   2024-07-12   
443-909 3 Baltimore MD   238   2024-07-12   
443-909 4 Baltimore MD   238   2024-07-12   
443-909 5 Baltimore MD   238   2024-07-12   
443-912 5 Towson MD   238   2015-07-29   
443-917 A Columbia MD BLTMMDCH42Z  238      
443-917 3 Columbia MD   238   2012-02-29   
443-920 7 Sykesville MD   238   2016-03-25   
443-920 8 Sykesville MD   238   2016-03-25   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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