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
857-284 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-03-07   
857-284 0 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2008-05-19   
857-284 1 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2008-05-19   
857-284 2 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-03-07   
857-284 3 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-03-07   
857-284 4 Boston MA   966C DSCI, LLC 128   2009-09-08   
857-284 5 Boston MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2009-09-29   
857-284 6 Boston MA   6664 SPRINT SPECTRUM L.P. 128   2008-11-23   
857-284 7 Boston MA   6101 COMCAST PHONE OF MASSACHUSETTS, INC. - MA 128   2010-09-21   
857-284 8 Boston MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-03   
857-284 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-03-07   

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

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