Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 829

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-829 A Cambridge MA WOBNMACGCMD  6664 SPRINT SPECTRUM L.P. 128      
857-829 0 Cambridge MA   6664 SPRINT SPECTRUM L.P. 128      
857-829 1 Cambridge MA   6664 SPRINT SPECTRUM L.P. 128      
857-829 2 Cambridge MA   6664 SPRINT SPECTRUM L.P. 128      
857-829 3 Cambridge MA   318J COMCAST IP PHONE LLC 128   2013-11-23   
857-829 4 Cambridge MA   892D ONVOY, LLC - MA 128   2014-10-07   
857-829 5 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2010-07-30   
857-829 6 Cambridge MA   892D ONVOY, LLC - MA 128   2014-10-07   
857-829 7 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-12-03   
857-829 8 Cambridge MA   6664 SPRINT SPECTRUM L.P. 128      
857-829 9 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-12-03   

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

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