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: 787 [Rate centres in NPA 787] [Dial plan for NPA 787]

NXX: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
787-777 A Río Piedras PR RPDRPRCODS1  3201 PUERTO RICO TEL. CO. 820      
787-777 0 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 1 Río Piedras PR   9726 WORLDNET TELECOMMUNICATIONS, INC. - PR 820   2010-09-24   
787-777 2 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 3 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 4 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 5 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 6 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 7 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 8 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      
787-777 9 Río Piedras PR   3201 PUERTO RICO TEL. CO. 820      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.