Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
223-377 4 Warfordsburg PA 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
227-800 A Frederick MD 624H ONVOY SPECTRUM, LLC 240   2025-01-02   
227-800 0 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2025-01-02   
227-800 2 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2025-01-02   
227-800 6 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2025-01-02   
227-800 8 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2025-01-02   
227-800 9 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2025-01-02   
240-202 5 Highfield MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-202 8 Highfield MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-202 9 Highfield MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-215 9 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-11-18   
240-226 8 Oakland MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-240 5 Damascus (Hagerstown LATA) MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-288 0 Thurmont MD 624H ONVOY SPECTRUM, LLC 240   2022-03-10   
240-410 2 Cumberland MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-574 3 Friendsville MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-574 6 Friendsville MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-574 8 Friendsville MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-576 2 Hagerstown MD 624H ONVOY SPECTRUM, LLC 240   2024-12-05   
240-589 1 McCoole MD 624H ONVOY SPECTRUM, LLC 240   2022-02-26   
240-692 5 Grantsville MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-692 7 Grantsville MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-692 8 Grantsville MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-693 0 Walkersville MD 624H ONVOY SPECTRUM, LLC 240   2022-02-13   
240-693 1 Walkersville MD 624H ONVOY SPECTRUM, LLC 240   2021-12-03   
240-693 5 Walkersville MD 624H ONVOY SPECTRUM, LLC 240   2021-12-03   
240-693 7 Walkersville MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-693 8 Walkersville MD 624H ONVOY SPECTRUM, LLC 240   2022-02-13   
240-698 7 Myersville MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-730 7 Hagerstown MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-735 2 Brunswick MD 624H ONVOY SPECTRUM, LLC 240   2021-12-03   
240-735 3 Brunswick MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-735 6 Brunswick MD 624H ONVOY SPECTRUM, LLC 240   2021-12-03   
240-738 3 Hancock MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-738 4 Hancock MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-738 5 Hancock MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-741 4 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-05-24   
240-741 5 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-02-23   
240-741 6 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-02-23   
240-741 7 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-02-23   
240-741 8 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-02-23   
240-769 5 Keedysville MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-769 6 Keedysville MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-785 5 Oakland MD 624H ONVOY SPECTRUM, LLC 240   2021-12-03   
240-792 4 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-11-18   
240-792 7 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-11-18   
240-792 8 Frederick MD 624H ONVOY SPECTRUM, LLC 240   2021-11-18   
240-807 5 Cumberland MD 624H ONVOY SPECTRUM, LLC 240   2022-02-10   
240-809 8 Smithsburg MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   
240-819 7 Williamsport MD 624H ONVOY SPECTRUM, LLC 240   2021-11-15   

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

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