Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-401 A South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 0 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 1 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 2 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 3 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 4 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 5 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 6 South Boston MA   829J PAETEC ITEL, LLC 128      
857-401 7 South Boston MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-24   
857-401 8 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-09-13   
857-401 9 South Boston MA   829J PAETEC ITEL, LLC 128   2001-08-13   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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