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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-356 A Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2019-11-25   
857-356 0 Boston MA   116E WEST TELECOM SERVICES, LLC - MA 128   2019-11-26   
857-356 1 Boston MA   116E WEST TELECOM SERVICES, LLC - MA 128   2019-11-26   
857-356 2 Boston MA   116E WEST TELECOM SERVICES, LLC - MA 128   2019-11-26   
857-356 3 Boston MA   268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2019-12-28   
857-356 4 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-07-29   
857-356 5 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2019-11-25   
857-356 6 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2019-11-25   
857-356 7 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2019-11-25   
857-356 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2019-11-25   
857-356 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2019-11-25   

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

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