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: 270

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-270 A Cambridge MA WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-270 0 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2014-11-14   
857-270 1 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-07-27   
857-270 2 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-07-14   
857-270 3 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-07-27   
857-270 4 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2016-06-17   
857-270 5 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-08   
857-270 6 Cambridge MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-08   
857-270 7 Cambridge MA   892D ONVOY, LLC - MA 128   2017-05-10   
857-270 8 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2016-06-17   
857-270 9 Cambridge MA   966G LOCAL ACCESS LLC - MA 128   2016-07-01   

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

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