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: 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  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-481 1 Annapolis MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-481 2 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
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      
443-481 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-481 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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