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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Switch: PBVJPRCOYMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
939-236 A Río Piedras PR 091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820      
939-318 A Santurce PR 091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820      
939-427 A Santurce PR 091J LUMEN TECHNOLOGIES PUERTO RICO, LLC 820   2024-09-12   

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

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