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: 775

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-775 A Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-775 0 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2016-05-06   
443-775 1 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-11-25   
443-775 2 Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-775 3 Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-775 4 Annapolis MD BLTQMD012MD  964H BARR TELL USA, INC. 238   2016-12-17   
443-775 5 Annapolis MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2015-11-18   
443-775 6 Annapolis MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-05-28   
443-775 7 Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-02-22   
443-775 8 Annapolis MD BLTMMDCHLMD  082H LOCAL ACCESS LLC - MD 238   2016-05-31   
443-775 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-11-15   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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