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
617-297 A Dorchester MA BSTNMACODS6  8345 GLOBAL CROSSING LOCAL SERVICES, INC.-MA 128      
617-297 0 Dorchester MA   8345 GLOBAL CROSSING LOCAL SERVICES, INC.-MA 128      
617-297 1 Dorchester MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-297 2 Dorchester MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-01-06   
617-297 3 Dorchester MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-297 4 Dorchester MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-297 5 Dorchester MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2005-01-20   
617-297 6 Dorchester MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-12-15   
617-297 7 Dorchester MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-19   
617-297 8 Dorchester MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-19   
617-297 9 Dorchester MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2012-04-27   

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

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