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
240-955 6 La Plata MD VINNVACBDS0  236   2023-08-10   
240-955 7 La Plata MD VINNVACBDS0  236   2023-08-10   
240-955 9 La Plata MD VINNVACBDS0  236   2024-03-03   
240-956 A Washington Zone 2 MD VINNVACBDS0  236      
240-956 4 Washington Zone 2 MD VINNVACBDS0  236   2021-01-07   
240-956 5 Washington Zone 2 MD VINNVACBDS0  236   2021-01-07   
240-956 6 Washington Zone 2 MD VINNVACBDS0  236   2021-01-07   
240-956 7 Washington Zone 2 MD VINNVACBDS0  236   2021-01-07   
240-957 2 Damascus MD VINNVACBDS0  236   2023-06-17   
240-957 3 Damascus MD VINNVACBDS0  236   2022-10-28   
240-957 4 Damascus MD VINNVACBDS0  236   2022-10-28   
240-957 5 Damascus MD VINNVACBDS0  236   2024-06-23   
240-957 6 Damascus MD VINNVACBDS0  236   2024-06-23   
240-960 5 Washington Zone 4 MD VINNVACBDS0  236   2022-10-17   
240-961 4 Poolesville MD VINNVACBDS0  236   2022-12-01   
240-961 5 Poolesville MD VINNVACBDS0  236   2022-12-01   
240-963 7 Washington Zone 3 MD VINNVACBDS0  236   2023-02-26   
240-966 4 Washington Zone 16 MD VINNVACBDS0  236   2022-10-15   
240-966 5 Washington Zone 16 MD VINNVACBDS0  236   2022-10-15   
240-966 8 Washington Zone 16 MD VINNVACBDS0  236   2023-08-10   
240-967 3 Cumberland MD   240   2025-05-03   
240-969 2 Walkersville MD CMLDMDCMEMD  240   2023-10-22   
240-969 3 Walkersville MD CMLDMDCMEMD  240   2023-10-22   
240-969 4 Walkersville MD CMLDMDCMEMD  240   2023-10-22   
240-969 5 Walkersville MD CMLDMDCMEMD  240   2023-10-22   
240-969 6 Walkersville MD CMLDMDCMEMD  240   2023-10-22   
240-969 7 Walkersville MD CMLDMDCMEMD  240   2024-03-02   
240-969 8 Walkersville MD CMLDMDCMEMD  240   2024-04-05   
240-970 A Washington Zone 12 MD VINNVACBDS0  236      
240-970 1 Washington Zone 12 MD VINNVACBDS0  236   2016-01-11   
240-970 4 Washington Zone 12 MD VINNVACBDS0  236   2017-05-25   
240-970 7 Washington Zone 12 MD VINNVACBDS0  236   2015-08-01   
240-972 2 Laurel (Baltimore LATA) MD BLTMMDCH42Z  238   2016-04-28   
240-972 3 Laurel (Baltimore LATA) MD BLTMMDCH42Z  238   2016-04-28   
240-972 7 Laurel (Baltimore LATA) MD BLTMMDCH42Z  238   2016-03-14   
240-972 8 Laurel (Baltimore LATA) MD BLTMMDCH42Z  238   2016-03-14   
240-973 2 Washington Zone 12 MD   236   2025-03-09   
240-973 3 Washington Zone 12 MD VINNVACBDS0  236   2023-01-26   
240-973 4 Washington Zone 12 MD VINNVACBDS0  236   2023-01-26   
240-973 5 Washington Zone 12 MD VINNVACBDS0  236   2023-02-27   
240-973 6 Washington Zone 12 MD VINNVACBDS0  236   2023-02-27   
240-973 7 Washington Zone 12 MD VINNVACBDS0  236   2023-02-27   
240-974 1 Washington Zone 10 MD VINNVACBDS0  236   2023-02-23   
240-974 2 Washington Zone 10 MD VINNVACBDS0  236   2023-02-23   
240-977 A Washington Zone 6 MD VINNVACBDS0  236      
240-977 1 Washington Zone 6 MD VINNVACBDS0  236   2023-09-14   
240-977 2 Washington Zone 6 MD VINNVACBDS0  236   2023-09-14   
240-977 3 Washington Zone 6 MD VINNVACBDS0  236   2023-09-14   
240-977 5 Washington Zone 6 MD VINNVACBDS0  236   2023-04-22   
240-977 6 Washington Zone 6 MD VINNVACBDS0  236   2023-04-22   

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

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