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: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 787

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-787 A Edgartown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
774-787 0 Edgartown MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-06-04   
774-787 1 Edgartown MA SOVLMAABDMD  490J DISH WIRELESS, LLC 128   2024-10-10   
774-787 2 Edgartown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
774-787 4 Edgartown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-03   
774-787 6 Edgartown MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-02-25   
774-787 8 Edgartown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-04   
774-787 9 Edgartown MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2021-07-02   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.