Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
781-998 1 Burlington MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-998 2 Burlington MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-998 5 Burlington MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-998 6 Burlington MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-998 7 Burlington MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-998 8 Burlington MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-202 3 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2012-01-10   
857-202 4 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2012-01-10   
857-202 5 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2012-01-10   
857-202 6 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2012-01-10   
857-207 3 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-08-17   
857-207 4 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-08-17   
857-227 A Somerville MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-227 0 Somerville MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-241 1 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-06-08   
857-241 5 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-06-08   
857-244 6 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2009-05-15   
857-246 7 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2010-02-27   
857-263 4 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-09-11   
857-263 5 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-09-11   
857-263 6 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-09-11   
857-284 0 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-05-19   
857-284 1 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2008-05-19   
857-288 A Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-288 2 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2009-10-25   
857-288 3 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2009-10-25   
857-288 4 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2009-10-25   
857-288 6 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2006-11-10   
857-288 7 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2006-11-10   
857-300 2 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-11-16   
857-313 7 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2014-02-11   
857-318 A Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-318 0 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-12-10   
857-321 5 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-06-09   
857-321 6 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-06-09   
857-350 1 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-09-07   
857-350 8 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-12-07   
857-350 9 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-12-07   
857-366 8 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-06-08   
857-366 9 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-06-08   
857-394 A Belmont MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-394 3 Belmont MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2022-04-04   
857-413 4 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2006-01-07   
857-413 5 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2006-01-07   
857-416 3 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2023-03-09   
857-472 5 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-04-24   
857-472 6 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-04-24   
857-472 7 Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2005-04-24   
857-500 4 Cambridge MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2011-11-29   
857-524 A South Boston MA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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