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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-255 A Newton MA   829J PAETEC ITEL, LLC 128      
857-255 0 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 1 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-06-01   
857-255 2 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 3 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 4 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 5 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 6 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 7 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 8 Newton MA   829J PAETEC ITEL, LLC 128      
857-255 9 Newton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-06-01   

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

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