Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-755 A CCTNMDCLRS0  9212 VERIZON MARYLAND, INC. 242      
410-755 0   228C IDT AMERICA, CORP. - MD 242   2012-07-07   
410-755 1   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-755 2   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-07-02   
410-755 3   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-07-02   
410-755 4   318J COMCAST IP PHONE LLC 242   2014-05-12   
410-755 5   7421 AT&T - LOCAL 242   2007-05-29   
410-755 6   9212 VERIZON MARYLAND, INC. 242      
410-755 7   876D ONVOY, LLC - MD 242   2017-04-14   
410-755 8   073H TELNYX LLC 242   2017-09-13   
410-755 9   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-07-02   
667-545 A ESTNMDBNGT0  2593 CORE COMMUNICATIONS, INC.- MD 242      
667-545 0   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-545 1   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-545 2   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-545 3   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-545 4   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
667-545 5   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-12-07   
667-545 6   876D ONVOY, LLC - MD 242   2021-04-02   
667-545 7   876D ONVOY, LLC - MD 242   2021-04-02   
667-545 8   876D ONVOY, LLC - MD 242   2019-03-10   
667-545 9   876D ONVOY, LLC - MD 242   2019-03-10   
667-687 A SLBRMDSBX1Y  566J RADIANTIQ LLC 242   2021-05-17   
667-687 0   939H COMMIO LLC 242   2022-03-27   
667-687 6   566J RADIANTIQ LLC 242   2021-05-17   
667-687 8   624H ONVOY SPECTRUM, LLC 242   2021-05-27   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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