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: 433

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-433 A Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
774-433 0 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2020-10-31   
774-433 1 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2020-10-31   
774-433 2 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-03-06   
774-433 3 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-08-17   
774-433 4 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-03-06   
774-433 5 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-01-01   
774-433 6 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-01-01   
774-433 7 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-08-08   
774-433 8 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2021-01-01   
774-433 9 Barnstable MA BRTNMACRLMD  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2020-10-29   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.