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: 439

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-439 A Trappe MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-439 0 Trappe MD SLBRMD90DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 242   2018-11-20   
443-439 1 Trappe MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2023-12-22   
443-439 2 Trappe MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2016-10-16   
443-439 3 Trappe MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
443-439 4 Trappe MD SLBRMD90DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 242   2018-03-11   
443-439 6 Trappe MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-05-04   
443-439 8 Trappe MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
443-439 9 Trappe MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-06-02   

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

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