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: 205

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-205 A Cambridge MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-205 0 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2004-06-03   
443-205 1 Cambridge MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2013-09-16   
443-205 2 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-08-07   
443-205 3 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2005-07-22   
443-205 4 Cambridge MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2004-07-16   
443-205 5 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2004-03-18   
443-205 6 Cambridge MD   876D ONVOY, LLC - MD 242   2024-03-02   
443-205 7 Cambridge MD   876D ONVOY, LLC - MD 242   2024-04-04   
443-205 8 Cambridge MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2022-11-07   
443-205 9 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-05-03   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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