Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sudlersville, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-438 A SDVLMDSDRS0  9212 VERIZON MARYLAND, INC. 242      
410-438 0   2593 CORE COMMUNICATIONS, INC. - MD 242   2004-04-03   
410-438 1   073H TELNYX LLC 242   2017-09-13   
410-438 2   9212 VERIZON MARYLAND, INC. 242      
410-438 3   9212 VERIZON MARYLAND, INC. 242      
410-438 4   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-07-02   
410-438 5   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-07-02   
410-438 6   228C IDT AMERICA CORP - MD 242   2006-05-21   
410-438 7   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2016-10-16   
410-438 8   876D ONVOY, LLC - MD 242   2017-04-14   
410-438 9   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-07-02   
667-727 A   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-12-07   
667-727 0   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-12-07   
667-727 1   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-12-07   
667-727 2   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-12-07   
667-727 3   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2019-04-22   
667-727 4   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
667-727 5   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
667-727 6   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
667-727 7   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-03-29   
667-727 8   876D ONVOY, LLC - MD 242   2019-03-10   
667-727 9   876D ONVOY, LLC - MD 242   2019-03-10   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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