Local Calling Guide

Area code/prefix search

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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
240-624 2 Washington Zone 13 MD   236   2008-10-05   
240-624 4 Washington Zone 13 MD   236   2016-04-28   
240-624 6 Washington Zone 13 MD   236   2016-04-28   
240-624 7 Washington Zone 13 MD   236   2014-10-24   
240-624 9 Washington Zone 13 MD   236   2014-10-24   
240-627 0 Washington Zone 11 MD   236   2024-11-10   
240-627 2 Washington Zone 11 MD   236   2024-05-24   
240-628 6 Mechanicsville MD   236   2019-02-19   
240-628 7 Mechanicsville MD   236   2018-09-13   
240-628 8 Mechanicsville MD   236   2019-02-19   
240-633 6 Hughesville MD   236   2015-07-14   
240-633 7 Hughesville MD   236   2016-03-14   
240-633 8 Hughesville MD   236   2016-03-14   
240-634 3 Ridge MD   236   2020-10-17   
240-634 8 Ridge MD   236   2019-02-19   
240-634 9 Ridge MD   236   2019-02-19   
240-635 8 Tompkinsville MD   236   2020-04-30   
240-635 9 Tompkinsville MD   236   2020-04-30   
240-641 0 Washington Zone 3 MD   236   2015-08-02   
240-641 1 Washington Zone 3 MD   236   2015-08-02   
240-641 7 Washington Zone 3 MD   236   2015-06-27   
240-647 5 Clear Spring MD   240   2020-01-05   
240-647 9 Clear Spring MD   240   2020-01-05   
240-648 9 Keedysville MD   240   2021-04-29   
240-649 5 Smithsburg MD   240   2021-05-21   
240-649 7 Smithsburg MD   240   2021-04-29   
240-649 9 Smithsburg MD   240   2021-04-29   
240-650 A Washington Zone 3 MD VINNVACBDS0  236      
240-650 9 Washington Zone 3 MD   236   2012-02-29   
240-652 2 Mechanicsville MD   236   2012-09-13   
240-655 A Kitzmiller MD CMLDMDCMEMD  240      
240-655 5 Kitzmiller MD   240   2018-02-16   
240-655 8 Kitzmiller MD   240   2020-01-06   
240-655 9 Kitzmiller MD   240   2020-01-06   
240-656 2 Frederick MD   240   2020-01-05   
240-656 3 Frederick MD   240   2020-01-05   
240-657 1 Frostburg MD   240   2016-09-12   
240-657 2 Frostburg MD   240   2016-09-12   
240-658 8 Gaithersburg MD   236   2021-02-18   
240-658 9 Gaithersburg MD   236   2021-02-18   
240-660 3 Washington Zone 10 MD   236   2016-04-28   
240-660 4 Washington Zone 10 MD   236   2016-03-14   
240-660 5 Washington Zone 10 MD   236   2016-03-14   
240-661 0 Lexington Park-Great Mills MD   236   2015-10-09   
240-661 6 Lexington Park-Great Mills MD   236   2015-07-13   
240-661 7 Lexington Park-Great Mills MD   236   2016-03-14   
240-661 8 Lexington Park-Great Mills MD   236   2016-03-14   
240-663 2 Middletown MD   240   2024-03-02   
240-663 5 Middletown MD   240   2020-01-06   
240-663 8 Middletown MD   240   2020-01-06   
240-664 0 Cumberland MD   240   2021-09-20   
240-665 5 Washington Zone 10 MD   236   2017-07-13   
240-666 A Nanjemoy MD VINNVACBDS0  236      
240-666 5 Nanjemoy MD   236   2021-04-02   
240-666 6 Nanjemoy MD   236   2015-08-23   
240-666 7 Nanjemoy MD   236   2016-03-14   
240-666 8 Nanjemoy MD   236   2016-03-14   
240-666 9 Nanjemoy MD   236   2021-04-02   
240-670 1 Washington Zone 3 MD   236   2013-05-14   
240-673 2 Washington Zone 2 MD   236   2020-04-30   
240-673 3 Washington Zone 2 MD   236   2020-04-30   
240-673 6 Washington Zone 2 MD   236   2020-09-11   
240-673 7 Washington Zone 2 MD   236   2020-09-11   
240-679 0 Friendsville MD   240   2023-05-24   
240-679 1 Friendsville MD   240   2023-09-14   
240-679 5 Friendsville MD   240   2020-01-06   
240-679 8 Friendsville MD   240   2020-01-06   
240-684 8 Washington Zone 13 MD   236   2015-06-27   
240-685 5 Brandywine MD   236   2024-03-07   
240-685 7 Brandywine MD   236   2013-05-29   
240-685 9 Brandywine MD   236   2012-10-06   
240-689 3 Washington Zone 15 MD   236   2021-12-23   
240-689 4 Washington Zone 15 MD   236   2021-12-23   
240-689 5 Washington Zone 15 MD   236   2021-12-23   
240-689 8 Washington Zone 15 MD   236   2025-03-09   
240-690 2 Gaithersburg MD   236   2018-06-14   
240-690 5 Gaithersburg MD   236   2017-12-15   
240-690 6 Gaithersburg MD   236   2017-12-15   
240-690 8 Gaithersburg MD   236   2025-10-12   
240-692 2 Grantsville MD   240   2020-01-06   
240-692 3 Grantsville MD   240   2020-01-06   
240-692 4 Grantsville MD   240   2021-03-04   
240-692 6 Grantsville MD   240   2023-06-16   
240-693 2 Walkersville MD   240   2020-01-06   
240-693 3 Walkersville MD   240   2020-01-06   
240-693 6 Walkersville MD   240   2022-10-16   
240-695 1 Washington Zone 5 MD   236   2017-05-19   
240-697 0 Mechanicsville MD   236   2023-06-17   
240-697 2 Mechanicsville MD   236   2020-04-30   
240-697 3 Mechanicsville MD   236   2020-04-30   
240-697 5 Mechanicsville MD   236   2025-01-06   
240-697 7 Mechanicsville MD   236   2021-03-04   
240-697 8 Mechanicsville MD   236   2021-03-04   
240-698 2 Myersville MD   240   2020-01-06   
240-698 3 Myersville MD   240   2020-01-06   
240-698 4 Myersville MD   240   2021-07-11   
240-702 1 Gaithersburg MD   236   2014-12-01   
240-702 2 Gaithersburg MD   236   2014-12-01   
240-712 5 Laurel (Baltimore LATA) MD   238   2012-10-07   
240-713 5 Laurel MD   236   2014-10-28   

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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