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
240-663 5 Middletown MD CMLDMDCMEMD  240   2020-01-06   
240-663 8 Middletown MD CMLDMDCMEMD  240   2020-01-06   
240-664 0 Cumberland MD CMLDMDCMEMD  240   2021-09-20   
240-665 5 Washington Zone 10 MD VINNVACBDS0  236   2017-07-13   
240-666 A Nanjemoy MD VINNVACBDS0  236      
240-666 5 Nanjemoy MD VINNVACBDS0  236   2021-04-02   
240-666 6 Nanjemoy MD VINNVACBDS0  236   2015-08-23   
240-666 7 Nanjemoy MD VINNVACBDS0  236   2016-03-14   
240-666 8 Nanjemoy MD VINNVACBDS0  236   2016-03-14   
240-666 9 Nanjemoy MD VINNVACBDS0  236   2021-04-02   
240-670 1 Washington Zone 3 MD VINNVACBDS0  236   2013-05-14   
240-673 2 Washington Zone 2 MD VINNVACBDS0  236   2020-04-30   
240-673 3 Washington Zone 2 MD VINNVACBDS0  236   2020-04-30   
240-673 6 Washington Zone 2 MD VINNVACBDS0  236   2020-09-11   
240-673 7 Washington Zone 2 MD VINNVACBDS0  236   2020-09-11   
240-679 0 Friendsville MD CMLDMDCMEMD  240   2023-05-24   
240-679 1 Friendsville MD CMLDMDCMEMD  240   2023-09-14   
240-679 5 Friendsville MD CMLDMDCMEMD  240   2020-01-06   
240-679 8 Friendsville MD CMLDMDCMEMD  240   2020-01-06   
240-684 8 Washington Zone 13 MD VINNVACBDS0  236   2015-06-27   
240-685 5 Brandywine MD VINNVACBDS0  236   2024-03-07   
240-685 7 Brandywine MD VINNVACBDS0  236   2013-05-29   
240-685 9 Brandywine MD VINNVACBDS0  236   2012-10-06   
240-689 3 Washington Zone 15 MD VINNVACBDS0  236   2021-12-23   
240-689 4 Washington Zone 15 MD VINNVACBDS0  236   2021-12-23   
240-689 5 Washington Zone 15 MD VINNVACBDS0  236   2021-12-23   
240-689 8 Washington Zone 15 MD   236   2025-03-09   
240-690 2 Gaithersburg MD VINNVACBDS0  236   2018-06-14   
240-690 5 Gaithersburg MD VINNVACBDS0  236   2017-12-15   
240-690 6 Gaithersburg MD VINNVACBDS0  236   2017-12-15   
240-690 8 Gaithersburg MD   236   2025-10-12   
240-692 2 Grantsville MD CMLDMDCMEMD  240   2020-01-06   
240-692 3 Grantsville MD CMLDMDCMEMD  240   2020-01-06   
240-692 4 Grantsville MD CMLDMDCMEMD  240   2021-03-04   
240-692 6 Grantsville MD CMLDMDCMEMD  240   2023-06-16   
240-693 2 Walkersville MD CMLDMDCMEMD  240   2020-01-06   
240-693 3 Walkersville MD CMLDMDCMEMD  240   2020-01-06   
240-693 6 Walkersville MD CMLDMDCMEMD  240   2022-10-16   
240-695 1 Washington Zone 5 MD VINNVACBDS0  236   2017-05-19   
240-697 0 Mechanicsville MD VINNVACBDS0  236   2023-06-17   
240-697 2 Mechanicsville MD VINNVACBDS0  236   2020-04-30   
240-697 3 Mechanicsville MD VINNVACBDS0  236   2020-04-30   
240-697 5 Mechanicsville MD VINNVACBDS0  236   2025-01-06   
240-697 7 Mechanicsville MD VINNVACBDS0  236   2021-03-04   
240-697 8 Mechanicsville MD VINNVACBDS0  236   2021-03-04   
240-698 2 Myersville MD CMLDMDCMEMD  240   2020-01-06   
240-698 3 Myersville MD CMLDMDCMEMD  240   2020-01-06   
240-698 4 Myersville MD CMLDMDCMEMD  240   2021-07-11   
240-702 1 Gaithersburg MD VINNVACBDS0  236   2014-12-01   
240-702 2 Gaithersburg MD VINNVACBDS0  236   2014-12-01   

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

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