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.

NPA: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 453

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-453 A Sun Prairie WI MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-453 0 Sun Prairie WI   225C ONVOY, LLC - WI 354   2023-08-25   
608-453 1 Sun Prairie WI   225C ONVOY, LLC - WI 354   2023-07-08   
608-453 2 Sun Prairie WI   225C ONVOY, LLC - WI 354   2022-09-30   
608-453 3 Sun Prairie WI   225C ONVOY, LLC - WI 354   2021-02-19   
608-453 4 Sun Prairie WI   225C ONVOY, LLC - WI 354   2021-02-19   
608-453 5 Sun Prairie WI   225C ONVOY, LLC - WI 354   2021-02-19   
608-453 6 Sun Prairie WI   225C ONVOY, LLC - WI 354   2021-02-19   
608-453 7 Sun Prairie WI   520K TDS METROCOM, LLC 354   2022-06-24   
608-453 8 Sun Prairie WI   225C ONVOY, LLC - WI 354   2022-09-30   
608-453 9 Sun Prairie WI   225C ONVOY, LLC - WI 354   2023-08-25   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.