Local Calling Guide

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

NXX: 733

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-733 A Waterloo MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-733 0 Waterloo MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-733 1 Waterloo MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-733 2 Waterloo MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-733 3 Waterloo MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
443-733 4 Waterloo MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-733 5 Waterloo MD PIVLMDPKQMD  9170 BROADVIEW NETWORKS, INC. - MD 238      
443-733 6 Waterloo MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-733 7 Waterloo MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-733 8 Waterloo MD   515J IP HORIZON LLC 238      
443-733 9 Waterloo MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

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

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