Local Calling Guide

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

NXX: 481

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-481 A Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 0 Annapolis MD BLTMMDCH40Z  6664 SPRINT SPECTRUM, L.P. 238   2005-09-08   
443-481 1 Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 2 Annapolis MD BLTMMDCH40Z  6664 SPRINT SPECTRUM, L.P. 238   2006-06-02   
443-481 3 Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 4 Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 5 Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 6 Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 7 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-12   
443-481 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-09-12   
443-481 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-06   

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

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