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: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-558 A Neenah WI APPLWI01XWX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350      
920-558 0 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 1 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 2 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 3 Neenah WI GNBYWIATVMD  516C AT&T CORP. 350      
920-558 4 Neenah WI APPLWI01XWX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350      
920-558 5 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 6 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 7 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 8 Neenah WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350      
920-558 9 Neenah WI   145J TERRA NOVA TELECOM INC. 350      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.