Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 515

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-515 A Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-515 0 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-08-07   
443-515 1 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2010-08-21   
443-515 2 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-08-25   
443-515 3 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-08-25   
443-515 4 Cambridge MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-02-03   
443-515 5 Cambridge MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242   2010-06-27   
443-515 6 Cambridge MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-515 7 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2015-04-12   
443-515 8 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2015-04-12   
443-515 9 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2014-11-08   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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