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: 329

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-329 A Green Lake WI GNBYWIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 350      
920-329 0 Green Lake WI GNBYWIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 350      
920-329 1 Green Lake WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2021-06-27   
920-329 2 Green Lake WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2021-07-02   
920-329 3 Green Lake WI MRNTWI24DS0  766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-12   
920-329 4 Green Lake WI STPTWI01HMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 350   2016-11-21   
920-329 5 Green Lake WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2021-08-20   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.