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: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-242 A Cambridge MA CHTWMABFDS2  966C DSCI, LLC 128      
857-242 0 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2012-10-06   
857-242 1 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2012-10-06   
857-242 2 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2012-04-30   
857-242 3 Cambridge MA   318J COMCAST IP PHONE LLC 128   2012-09-29   
857-242 4 Cambridge MA   318J COMCAST IP PHONE LLC 128   2014-05-12   
857-242 5 Cambridge MA   966C DSCI, LLC 128   2011-12-15   
857-242 6 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2014-06-05   
857-242 7 Cambridge MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2013-09-26   
857-242 8 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-10-11   
857-242 9 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-10-11   

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

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