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
857-443 A Boston MA   939H COMMIO, LLC 128   2017-07-13   
857-443 0 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 1 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 2 Boston MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2017-07-14   
857-443 3 Boston MA   939H COMMIO, LLC 128   2017-07-13   
857-443 4 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 5 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 6 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 7 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 8 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   
857-443 9 Boston MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-07-14   

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

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