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: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-401 A Cambridge MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-401 0 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-02-07   
617-401 1 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-09-14   
617-401 2 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2006-07-06   
617-401 3 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2006-07-06   
617-401 4 Cambridge MA   966C DSCI, LLC 128   2007-08-05   
617-401 5 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-09-14   
617-401 6 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-12-17   
617-401 7 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-17   
617-401 8 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-06-17   
617-401 9 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-01-03   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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