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: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-315 A Boston MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128      
857-315 0 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 1 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 2 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 3 Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2017-12-08   
857-315 4 Boston MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2017-12-08   
857-315 5 Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2017-12-09   
857-315 7 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-12-11   
857-315 8 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2017-12-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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