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.
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NPA: 418 [Rate centres in NPA 418] [Dial plan for NPA 418]

NXX: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
418-423 A Black Lake QC BKLKPQ27RS1  8050 BELL QUEBEC 888 805023    

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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