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: 363

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-363 A Severn MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238      
443-363 0 Severn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-363 1 Severn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-363 2 Severn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-10-23   
443-363 3 Severn MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2019-03-31   
443-363 4 Severn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-363 5 Severn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-363 6 Severn MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-363 7 Severn MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2018-10-05   
443-363 8 Severn MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-25   
443-363 9 Severn MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2020-12-31   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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