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: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-301 A Cambridge MA CMBSMA01GT4  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
617-301 0 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2004-09-12   
617-301 1 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2004-09-12   
617-301 2 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2004-09-12   
617-301 3 Cambridge MA   6664 SPRINT SPECTRUM L.P. 128   2004-12-16   
617-301 4 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2004-11-15   
617-301 5 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2004-11-27   
617-301 6 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2004-11-27   
617-301 7 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2006-03-08   
617-301 8 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2006-03-15   
617-301 9 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-22   

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

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