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: MDSNWIKWDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-203 A Middleton WI 7804 TDS METROCOM INC. - WI 354      
608-204 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-205 A Stoughton WI 7804 TDS METROCOM INC. - WI 354      
608-210 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-313 A Beloit WI 7804 TDS METROCOM INC. - WI 354      
608-314 A Janesville WI 7804 TDS METROCOM INC. - WI 354      
608-321 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-441 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-442 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-443 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-661 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-662 A Middleton WI 7804 TDS METROCOM INC. - WI 354      
608-663 A Madison WI 7804 TDS METROCOM INC. - WI 354      
608-664 A Middleton WI 7804 TDS METROCOM INC. - WI 354      
815-525 A South Beloit IL 2320 TDS METROCOM INC.-IL 354      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.