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: 939 [Rate centres in NPA 939] [Dial plan for NPA 939]

NXX: 471

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
939-471 A Caguas PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2025-02-07   
939-471 0 Caguas PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2025-02-07   
939-471 1 Caguas PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2025-02-07   
939-471 2 Caguas PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2025-03-20   
939-471 3 Caguas PR   8645 SUNCOM DBA T-MOBILE USA 820   2025-08-14   
939-471 9 Caguas PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2025-04-23   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.