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: 210

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-210 A Boston MA WOBNMACGCM0  6664 SPRINT SPECTRUM L.P. 128   2011-05-01   
857-210 0 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2011-05-01   
857-210 1 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2011-05-01   
857-210 2 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-05-20   
857-210 3 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-05-20   
857-210 4 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-05-20   
857-210 5 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-05-20   
857-210 6 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-05-20   
857-210 7 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-05-20   
857-210 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2011-06-28   
857-210 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2011-06-28   

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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