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: 628

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-628 A Glen Burnie MD BLTMMDCHYMD  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-628 0 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-628 1 Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-08-01   
443-628 2 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-628 3 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-628 4 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-628 5 Glen Burnie MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-628 6 Glen Burnie MD   318J COMCAST IP PHONE LLC 238   2018-09-30   
443-628 7 Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2018-04-02   
443-628 8 Glen Burnie MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-13   
443-628 9 Glen Burnie MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-01-17   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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