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: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
939-666 A San Sebastián PR GUYNPRTCDS0  985G NATURAL G.C. INC. - PR 820      
939-666 0 San Sebastián PR   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820      
939-666 1 San Sebastián PR GUYNPR335MD  073H TELNYX LLC 820      
939-666 2 San Sebastián PR BYMNPRCO4MD  624H ONVOY SPECTRUM, LLC 820      
939-666 3 San Sebastián PR BYMNPRCO1MD  559F NEUTRAL TANDEM - PR 820      
939-666 6 San Sebastián PR GUYNPRTCDS0  985G NATURAL G.C. INC. - PR 820      
939-666 7 San Sebastián PR PBVJPRCOYMD  091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.