Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Williamsburg, ON

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
343-449 A CRNWON24FMD  383H INNSYSVOICE CORP - ON 888 805142    
343-482 A CRNWON24EMD  4727 ISP TELECOM, INC. 888 805142    
343-684 A CRNWON240MD  464D FIBERNETICS CORPORATION 888 805142    
613-535 A WLBGON31RS0  8051 BELL ONTARIO 888 805142    
613-641 A CRNWONCE0MD  4878 BRAGG COMMUNICATIONS INC. 888 805142    

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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