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: MILXWIJIGT0

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-860 A Manitowoc WI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-912 A Sheboygan WI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-917 A Sheboygan WI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-918 A Sheboygan WI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-943 A Sheboygan WI 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2024-01-18   

<< 1 2

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.