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: 937

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-937 A Union Bridge MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-937 0 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-937 1 Union Bridge MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-937 2 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-937 3 Union Bridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-937 4 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-937 5 Union Bridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-937 6 Union Bridge MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-937 7 Union Bridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-937 8 Union Bridge MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-937 9 Union Bridge MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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