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: OCFLWI06GT0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-399 A Oconto Falls WI 375F PLTC, LLC - WI 350      
920-399 1 Oconto Falls WI 375F PLTC, LLC - WI 350   2013-04-05   
920-829 1 Lena WI 375F PLTC, LLC - WI 350   2010-08-23   
920-842 7 Suring WI 375F PLTC, LLC - WI 350   2012-10-06   
920-855 5 Gillett WI 375F PLTC, LLC - WI 350   2012-10-06   
920-897 1 Coleman WI 375F PLTC, LLC - WI 350   2010-08-23   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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