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.

Williamsburg, ON

NPA-NXX BLOCK Switch OCN LATA Eff date Disc date Map
343-449 A   383H InnSysVoice Corp 888     map
343-482 A   4727 ISP Telecom 888     map
613-535 A WLBGON31RS0  8051 Bell Canada 888     map
613-641 A CRNWONCE0MD  4878 Bragg Communications Inc. 888     map

Last updated: Sat, 09 Jun 2018 13:21:19 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.