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: 754

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-754 A Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-754 0 Quincy MA BSTPMALLOMD  073H TELNYX LLC 128   2021-03-04   
857-754 1 Quincy MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-04-16   
857-754 2 Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-03-28   
857-754 3 Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-03-28   
857-754 4 Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-02-07   
857-754 5 Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-02-07   
857-754 6 Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-02-07   
857-754 7 Quincy MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-02-07   
857-754 8 Quincy MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-04-12   
857-754 9 Quincy MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2021-04-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.