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: 274 [Rate centres in NPA 274] [Dial plan for NPA 274]

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
274-200 A Winneconne WI   624H ONVOY SPECTRUM, LLC 350   2024-12-14   
274-200 0 Winneconne WI   225C ONVOY, LLC - WI 350      
274-200 1 Winneconne WI   225C ONVOY, LLC - WI 350      
274-200 2 Winneconne WI   624H ONVOY SPECTRUM, LLC 350      
274-200 3 Winneconne WI   225C ONVOY, LLC - WI 350      
274-200 4 Winneconne WI   225C ONVOY, LLC - WI 350      
274-201 A New London WI   6529 T-MOBILE USA, INC. 350   2024-12-27   
274-201 7 New London WI   6529 T-MOBILE USA, INC. 350      
274-201 8 New London WI   6529 T-MOBILE USA, INC. 350      
274-201 9 New London WI   6529 T-MOBILE USA, INC. 350      
274-274 A Manitowoc WI   624H ONVOY SPECTRUM, LLC 356   2024-12-14   
274-274 0 Manitowoc WI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
274-274 2 Manitowoc WI   624H ONVOY SPECTRUM, LLC 356      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.