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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-514 A Dorchester MA CMBRMAORDS0  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-514 0 Dorchester MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2013-03-01   
617-514 1 Dorchester MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-514 2 Dorchester MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2013-03-01   
617-514 3 Dorchester MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2008-03-07   
617-514 4 Dorchester MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2008-03-07   
617-514 5 Dorchester MA   7135 TC SYSTEMS, INC. 128   2010-04-30   
617-514 6 Dorchester MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2013-01-05   
617-514 7 Dorchester MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2009-07-03   
617-514 8 Dorchester MA   7421 AT&T LOCAL 128   2011-09-22   
617-514 9 Dorchester MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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