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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-309 A Boston MA CMBRMAWA0MD  3370 CTC COMMUNICATIONS CORP. - MA 128   2005-01-21   
617-309 0 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2005-02-07   
617-309 1 Boston MA   3370 CTC COMMUNICATIONS CORP. - MA 128   2005-01-21   
617-309 2 Boston MA   3370 CTC COMMUNICATIONS CORP. - MA 128   2005-01-21   
617-309 3 Boston MA   3370 CTC COMMUNICATIONS CORP. - MA 128   2005-01-21   
617-309 4 Boston MA   3370 CTC COMMUNICATIONS CORP. - MA 128   2005-01-21   
617-309 5 Boston MA   3370 CTC COMMUNICATIONS CORP. - MA 128   2005-01-21   
617-309 6 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2005-02-07   
617-309 7 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2005-01-23   
617-309 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2005-01-23   
617-309 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2005-01-23   

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

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