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: 935

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
939-935 A Hormigueros PR LUQUPRAEDS0  955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820      
939-935 0 Hormigueros PR   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2024-11-10   
939-935 2 Hormigueros PR   624H ONVOY SPECTRUM, LLC 820   2023-12-02   
939-935 3 Hormigueros PR   559F NEUTRAL TANDEM - PR 820   2021-01-25   
939-935 9 Hormigueros PR   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2016-01-27   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.