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.

Switch: CLTNON055MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
226-532 A Clinton ON 464D FIBERNETICS CORPORATION 888 805127    
548-248 A Goderich ON 464D FIBERNETICS CORPORATION 888 805127    
548-433 A Goderich ON 464D FIBERNETICS CORPORATION 888 805127    
548-569 A Auburn ON 464D FIBERNETICS CORPORATION 888 805127    
548-570 A Blyth ON 464D FIBERNETICS CORPORATION 888 805127    
548-571 A Brussels ON 464D FIBERNETICS CORPORATION 888 805127    
548-572 A Hensall ON 464D FIBERNETICS CORPORATION 888 805127    
548-573 A Lucknow ON 464D FIBERNETICS CORPORATION 888 805127    
548-574 A Seaforth ON 464D FIBERNETICS CORPORATION 888 805127    
548-575 A Wingham ON 464D FIBERNETICS CORPORATION 888 805127    
548-972 A Clinton ON 464D FIBERNETICS CORPORATION 888 805127    

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

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