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: 581 [Rate centres in NPA 581] [Dial plan for NPA 581]

NXX: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
581-636 A Rivière-au-Renard QC   174G 9144-3036 Quebec Inc ( dba Navigue.com) 888 808303    

Last updated: Sun, 29 Nov 2020 13:13:58 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.