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
857-453 A Boston MA CMBRMAAWRS0  8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 0 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-08-01   
857-453 1 Boston MA   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 2 Boston MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2008-01-08   
857-453 3 Boston MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2008-03-14   
857-453 4 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-15   
857-453 5 Boston MA   4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128   2008-04-16   
857-453 6 Boston MA   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 7 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 8 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-07-10   
857-453 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2005-08-01   

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

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