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: 764

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-764 A Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 0 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 1 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 2 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 3 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2010-09-25   
617-764 4 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2012-11-24   
617-764 5 Somerville MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
617-764 6 Somerville MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2018-07-23   
617-764 7 Somerville MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2024-10-26   
617-764 8 Somerville MA   515J IP HORIZON LLC 128   2013-08-08   
617-764 9 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-02-22   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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