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
857-588 A Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-588 0 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-588 1 Charlestown MA   019F CBEYOND COMMUNICATIONS, LLC - MA 128   2010-03-15   
857-588 2 Charlestown MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-11-10   
857-588 3 Charlestown MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-11-10   
857-588 4 Charlestown MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-11-10   
857-588 5 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-588 6 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-588 7 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-588 8 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      
857-588 9 Charlestown MA   4536 XO MASSACHUSETTS, INC. 128      

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

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