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: 703

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-703 A New Glarus WI MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-703 0 New Glarus WI MDSNWIPUCM4  6274 UNITED STATES CELLULAR - WI 354   2021-09-13   
608-703 1 New Glarus WI   6529 T-MOBILE USA, INC. 354   2025-02-21   
608-703 2 New Glarus WI   6529 T-MOBILE USA, INC. 354   2025-02-21   
608-703 8 New Glarus WI MDSNWI11XAX  225C ONVOY, LLC - WI 354   2021-09-12   
608-703 9 New Glarus WI MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354   2024-03-28   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.