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
443-397 A Salisbury MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-06-06   
443-397 0 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-06-06   
443-397 1 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-03-13   
443-397 2 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-09-03   
443-397 3 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-02   
443-397 4 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-14   
443-397 5 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-10-14   
443-397 6 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-01-16   
443-397 7 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-08-01   
443-397 8 Salisbury MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2010-02-16   
443-397 9 Salisbury MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2010-03-28   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.