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: 546

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-546 A Dennis MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2024-01-15   
774-546 0 Dennis MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2025-05-30   
774-546 1 Dennis MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-08   
774-546 7 Dennis MA SOVLMAABDMD  490J DISH WIRELESS, LLC 128   2024-06-13   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.