Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-859 A Salisbury MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242      
443-859 0 Salisbury MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242      
443-859 1 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-12-14   
443-859 2 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-12-14   
443-859 3 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2008-03-03   
443-859 4 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2008-03-03   
443-859 5 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2008-08-14   
443-859 6 Salisbury MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-07-21   
443-859 7 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2007-08-02   
443-859 8 Salisbury MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 242   2007-08-13   
443-859 9 Salisbury MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2019-05-02   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.