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: 706

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-706 A Cambridge MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-706 0 Cambridge MA BSTPMALLOMD  073H TELNYX LLC 128   2021-03-04   
857-706 1 Cambridge MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2015-08-12   
857-706 2 Cambridge MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-04-25   
857-706 4 Cambridge MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-05-16   
857-706 5 Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-12-06   
857-706 6 Cambridge MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-08-07   
857-706 7 Cambridge MA BSTPMALLBMD  814J LIGHTPATH OF NEW ENGLAND 128   2021-12-01   
857-706 8 Cambridge MA WSBOMAGOAMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128   2014-10-10   
857-706 9 Cambridge MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-05-20   

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

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