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
443-793 A Parkville MD BLTMMDSN5MD  4773 XO MARYLAND, LLC 238      
443-793 0 Parkville MD   4773 XO MARYLAND, LLC 238      
443-793 1 Parkville MD   4773 XO MARYLAND, LLC 238      
443-793 2 Parkville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   
443-793 3 Parkville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   
443-793 4 Parkville MD   4773 XO MARYLAND, LLC 238      
443-793 5 Parkville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
443-793 6 Parkville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-05-29   
443-793 7 Parkville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-08-11   
443-793 8 Parkville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-10-07   
443-793 9 Parkville MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-05-01   

Last updated: Sun, 29 Sep 2019 14:17:11 UTC

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