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: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-543 A Barnstable MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-19   
774-543 6 Barnstable MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-19   
774-543 7 Barnstable MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-19   
774-543 8 Barnstable MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-19   
774-543 9 Barnstable MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2026-01-19   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.