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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
787-866 A Guayama PR GUYMPRURRS1  3201 PUERTO RICO TELEPHONE CO. 820      

Last updated: Wed, 01 Apr 2020 02:09:16 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.