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: 685

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-685 A Severn MD BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-685 0 Severn MD BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-685 2 Severn MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL INC 238   2020-12-26   
443-685 3 Severn MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2014-05-19   
443-685 4 Severn MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-685 5 Severn MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-11-17   
443-685 6 Severn MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-04-22   
443-685 7 Severn MD BLTMMDCHLMD  082H LOCAL ACCESS LLC - MD 238   2016-10-14   
443-685 8 Severn MD BLTMMDCHFMD  5562 METRO PCS, INC. 238   2016-12-22   
443-685 9 Severn MD BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      

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

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