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.
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Ciales, PR

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
787-663 A GUYNPR20DS0  9726 WORLDNET TELECOMMUNICATIONS, INC. - PR 820      
787-663 0   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2016-01-08   
787-663 1   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2016-11-30   
787-663 2   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2017-04-23   
787-663 3   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2017-09-03   
787-663 4   091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820   2020-03-08   
787-663 5   073H TELNYX LLC 820   2022-11-27   
787-663 6   559F NEUTRAL TANDEM - PR 820   2021-01-25   
787-663 7   9726 WORLDNET TELECOMMUNICATIONS, INC. - PR 820   2007-10-27   
787-663 8   559F NEUTRAL TANDEM - PR 820   2022-10-03   
787-663 9   559F NEUTRAL TANDEM - PR 820   2022-10-03   
787-871 A CILSPRURRS1  3201 PUERTO RICO TEL. CO. 820      
787-917 A GUYNPR05DSA  8305 LIBERTY MOBILE PUERTO RICO INC. 820      
939-374 A BYMNPRCO4MD  624H ONVOY SPECTRUM, LLC 820   2024-01-06   
939-374 3   624H ONVOY SPECTRUM, LLC 820   2024-01-06   

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

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