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
857-310 A Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-310 0 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 1 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 2 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 3 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-02-01   
857-310 4 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-01   
857-310 5 Boston MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2015-01-12   
857-310 6 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-15   
857-310 7 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-03-15   
857-310 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-12-13   
857-310 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2014-12-13   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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