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
410-650 8 Dundalk MD   238   2016-03-31   
410-656 6 North East MD   238   2012-10-07   
410-657 0 Parkville MD   238   2016-05-06   
410-657 4 Parkville MD   238   2016-03-28   
410-657 6 Parkville MD   238   2016-03-28   
410-670 0 Edgewood MD   238   2016-05-06   
410-671 0 Edgewood MD   238   2016-03-30   
410-673 4 Preston MD   242   2017-04-14   
410-680 2 Ellicott City MD   238   2016-02-15   
410-680 3 Ellicott City MD   238   2016-02-15   
410-695 9 Odenton MD   238   2016-05-04   
410-699 9 Chestertown MD   242   2024-03-03   
410-701 2 Randallstown MD   238   2016-04-06   
410-701 3 Randallstown MD   238   2016-04-06   
410-705 2 Waterloo (Washington DC LATA) MD   236   2020-10-17   
410-705 7 Waterloo (Washington DC LATA) MD   236   2020-10-17   
410-709 4 Sparrows Point MD   238   2016-03-08   
410-709 6 Sparrows Point MD   238   2016-03-24   
410-709 7 Sparrows Point MD   238   2016-03-24   
410-729 6 Severn MD   238   2016-03-14   
410-734 3 Churchville MD   238   2016-03-25   
410-734 5 Churchville MD   238   2016-03-07   
410-755 5 Warwick MD   242   2022-11-24   
410-755 7 Warwick MD   242   2017-04-14   
410-756 8 Taneytown MD   238   2016-04-08   
410-762 3 Glen Burnie MD   238   2024-02-25   
410-762 4 Glen Burnie MD   238   2016-01-15   
410-763 2 Easton MD   242   2024-04-13   
410-769 0 Towson MD   238   2016-03-28   
410-769 3 Towson MD   238   2016-03-28   
410-770 2 Easton MD   242   2017-04-13   
410-775 9 Union Bridge MD   238   2016-03-28   
410-781 1 Ellicott City MD   238   2016-03-10   
410-781 3 Ellicott City MD   238   2024-04-13   
410-784 4 Deal Island MD   242   2017-04-13   
410-801 1 Baltimore MD   238   2024-02-24   
410-801 7 Baltimore MD   238   2017-03-02   
410-807 3 Catonsville MD   238   2012-10-08   
410-817 1 Fork MD   238   2025-08-18   
410-817 2 Fork MD   238   2025-08-18   
410-817 7 Fork MD   238   2016-03-27   
410-824 5 Waterloo (Washington DC LATA) MD   236   2022-11-24   
410-826 A Baltimore MD BLTMMDCH42Z  238      
410-826 0 Baltimore MD   238   2016-01-18   
410-826 1 Baltimore MD   238   2016-01-18   
410-826 2 Baltimore MD   238   2016-01-18   
410-826 3 Baltimore MD   238   2016-01-18   
410-826 4 Baltimore MD   238   2016-01-18   
410-826 5 Baltimore MD   238   2016-01-18   
410-826 6 Baltimore MD   238   2016-01-18   

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

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