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: KGTNON08X0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
343-477 A Kingston ON 4727 ISP TELECOM, INC. 888 805121    
343-478 A Napanee ON 4727 ISP TELECOM, INC. 888 805121    
343-479 A Gananoque ON 4727 ISP TELECOM, INC. 888 805121    
343-569 A Enterprise ON 4727 ISP TELECOM, INC. 888 805121    
343-570 A Odessa ON 4727 ISP TELECOM, INC. 888 805121    
343-577 A Bath ON 4727 ISP TELECOM, INC. 888 805121    
343-578 A Harrowsmith ON 4727 ISP TELECOM, INC. 888 805121    
343-701 A Seeleys Bay ON 4727 ISP TELECOM, INC. 888 805121    
343-702 A Selby ON 4727 ISP TELECOM, INC. 888 805121    

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

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