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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-856 A Forestville WI FSVLWIXADS0  0884 CENTURYTEL OF FORESTVILLE, LLC DBA CENTURYLINK 350      
920-856 0 Forestville WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2018-10-25   
920-856 4 Forestville WI GNBYWI01VMD  624H ONVOY SPECTRUM, LLC 350   2021-06-21   
920-856 5 Forestville WI MRNTWI24DS0  766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-12   
920-856 6 Forestville WI FSVLWIXADS0  0884 CENTURYTEL OF FORESTVILLE, LLC DBA CENTURYLINK 350      
920-856 7 Forestville WI GNBYWIEL1MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2014-11-25   
920-856 8 Forestville WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2021-03-29   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.