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: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 528

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-528 A Cascade WI CSCDWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-528 1 Cascade WI CSCDWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-528 5 Cascade WI MILWWIAUDS1  225C ONVOY, LLC - WI 356      
920-528 7 Cascade WI CSCDWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-528 8 Cascade WI CSCDWIXARS0  0886 FRONTIER NORTH INC. - WI 356      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.