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: KTNRON06X3X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
226-473 A Preston ON 4727 ISP TELECOM, INC. 888 805143    
226-474 A Galt ON 4727 ISP TELECOM, INC. 888 805143    
226-475 A Hespeler ON 4727 ISP TELECOM, INC. 888 805143    
226-476 A Kitchener-Waterloo ON 4727 ISP TELECOM, INC. 888 805143    
548-312 A New Hamburg ON 4727 ISP TELECOM, INC. 888 805143    
548-313 A Wellesley ON 4727 ISP TELECOM, INC. 888 805143    
548-509 A Plattsville ON 4727 ISP TELECOM, INC. 888 805143    
548-578 A St Jacobs ON 4727 ISP TELECOM, INC. 888 805143    
548-867 A Ayr ON 4727 ISP TELECOM, INC. 888 805143    
548-868 A Breslau ON 4727 ISP TELECOM, INC. 888 805143    
548-869 A Baden ON 4727 ISP TELECOM, INC. 888 805143    
548-870 A St Clements ON 4727 ISP TELECOM, INC. 888 805143    
548-871 A Linwood ON 4727 ISP TELECOM, INC. 888 805143    
548-872 A Elmira ON 4727 ISP TELECOM, INC. 888 805143    
548-928 A Drayton ON 4727 ISP TELECOM, INC. 888 805143    
548-973 A New Dundee ON 4727 ISP TELECOM, INC. 888 805143    

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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