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
857-413 A Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-413 0 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-10-15   
857-413 1 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-10-15   
857-413 2 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-10   
857-413 3 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-11-10   
857-413 4 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2006-01-07   
857-413 5 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2006-01-07   
857-413 6 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-10-15   
857-413 7 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2006-03-09   
857-413 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-02-03   
857-413 9 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2006-02-03   

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

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