Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 533

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-533 A Jarrettsville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-533 0 Jarrettsville MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-533 1 Jarrettsville MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2003-03-02   
443-533 2 Jarrettsville MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2010-05-18   
443-533 3 Jarrettsville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-10-08   
443-533 4 Jarrettsville MD   145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-533 5 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
443-533 6 Jarrettsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
443-533 7 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-22   
443-533 8 Jarrettsville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-10-22   
443-533 9 Jarrettsville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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