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.

Río Piedras, PR

<< 1 2 3 4 5

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
939-399 1 GUYNPRTCDS0  985G NATURAL G.C. INC. - PR 820   2018-10-22   
939-399 2 PBVJPRCOYMD  091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820   2021-02-14   
939-399 3 LUQUPRAEDS0  955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2016-01-27   
939-399 4 PBVJPRCOYMD  091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820   2020-11-21   
939-709 A GUYNPRTCDS0  985G NATURAL G.C. INC. - PR 820      
939-709 1 GUYNPRTCDS0  985G NATURAL G.C. INC. - PR 820   2013-07-06   

<< 1 2 3 4 5

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.