Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-580 A Charlestown MA BSTNMABLDS3  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
617-580 0 Charlestown MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-10-16   
617-580 1 Charlestown MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2013-05-20   
617-580 2 Charlestown MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-10-16   
617-580 3 Charlestown MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-04   
617-580 4 Charlestown MA   7135 TC SYSTEMS, INC. 128   2002-05-14   
617-580 5 Charlestown MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-07-14   
617-580 6 Charlestown MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2015-04-12   
617-580 7 Charlestown MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2014-03-23   
617-580 8 Charlestown MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2011-08-23   
617-580 9 Charlestown MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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