Local Calling Guide

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

NXX: 249

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-249 A Stevensville MD RMCKMDRRRS0  9212 VERIZON MARYLAND, INC. 242      
443-249 0 Stevensville MD RMCKMDRRRS0  9212 VERIZON MARYLAND, INC. 242      
443-249 1 Stevensville MD SLBRMDFSDS0  2593 CORE COMMUNICATIONS, INC. - MD 242   2004-04-03   
443-249 2 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
443-249 3 Stevensville MD ESTNMDESMMD  228C IDT AMERICA CORP - MD 242   2006-05-21   
443-249 4 Stevensville MD ESTNMDES5MD  7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2011-01-03   
443-249 5 Stevensville MD ESTNMDESMMD  228C IDT AMERICA CORP - MD 242   2012-12-21   
443-249 6 Stevensville MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-249 7 Stevensville MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2004-06-12   
443-249 8 Stevensville MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2006-08-28   
443-249 9 Stevensville MD   145J TERRA NOVA TELECOM INC. 242   2021-01-28   

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

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