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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Cidra, PR

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
787-434 A GUYNPR05DSA  8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 0   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 1   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 2   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 3   559F NEUTRAL TANDEM - PR 820   2021-01-25   
787-434 4   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 5   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 6   9726 WORLDNET TELECOMMUNICATIONS, INC. - PR 820   2007-05-16   
787-434 7   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-434 8   091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820   2020-03-08   
787-434 9   8305 LIBERTY MOBILE PUERTO RICO INC. 820      
787-714 A CDRAPRURRS1  3201 PUERTO RICO TEL. CO. 820      
787-714 0   3201 PUERTO RICO TEL. CO. 820      
787-714 1   3201 PUERTO RICO TEL. CO. 820      
787-714 2   3201 PUERTO RICO TEL. CO. 820      
787-714 3   3201 PUERTO RICO TEL. CO. 820      
787-714 4   3201 PUERTO RICO TEL. CO. 820      
787-714 5   3201 PUERTO RICO TEL. CO. 820      
787-714 6   3201 PUERTO RICO TEL. CO. 820      
787-714 7   3201 PUERTO RICO TEL. CO. 820      
787-714 8   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2016-01-08   
787-714 9   559F NEUTRAL TANDEM - PR 820   2021-07-31   
787-739 A CDRAPRURRS1  3201 PUERTO RICO TEL. CO. 820      
939-893 A PBVJPRCO4MD  624H ONVOY SPECTRUM, LLC 820   2024-01-07   
939-893 0   073H TELNYX LLC 820   2024-01-09   
939-893 3   955G LIBERTY COMMUNICATIONS OF PUERTO RICO LLC 820   2024-04-04   
939-893 8   624H ONVOY SPECTRUM, LLC 820   2024-01-07   

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

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