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: 756

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-756 A Cambridge MA CMBRMABEX9Y  0334 METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL 128      
857-756 0 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-08-18   
857-756 1 Cambridge MA   0334 METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL 128   2005-09-17   
857-756 2 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-11-12   
857-756 3 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-08-18   
857-756 4 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 5 Cambridge MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-12-04   
857-756 6 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 7 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 8 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-03-02   
857-756 9 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-03-02   

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

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