Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 575

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-575 A Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 0 Somerville MA BSTPMALLOMD  073H TELNYX LLC 128      
857-575 1 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 2 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 3 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 4 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 5 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 6 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 7 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 8 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-575 9 Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.