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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-403 A Aberdeen MD BLTMMDCHXZY  8864 BROADWING COMMUNICATIONS. LLC - MD 236      
443-403 0 Aberdeen MD   8864 BROADWING COMMUNICATIONS. LLC - MD 236      
443-403 1 Aberdeen MD   8864 BROADWING COMMUNICATIONS. LLC - MD 236      
443-403 2 Aberdeen MD   8864 BROADWING COMMUNICATIONS. LLC - MD 236      
443-403 3 Aberdeen MD   8864 BROADWING COMMUNICATIONS. LLC - MD 236      
443-403 4 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-403 5 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-403 6 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-403 7 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-403 8 Aberdeen MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236   2013-08-18   
443-403 9 Aberdeen MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2013-01-25   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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