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
857-600 A Cambridge MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 0 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 1 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 2 Cambridge MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-05   
857-600 3 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2011-06-07   
857-600 4 Cambridge MA   4536 XO MASSACHUSETTS, INC. 128   2011-06-07   
857-600 5 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   
857-600 6 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-07   
857-600 7 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   
857-600 8 Cambridge MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-06-07   
857-600 9 Cambridge MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

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