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: TYVLILXCBMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-250 0 Litchfield IL 6529 T-MOBILE USA, INC. 976   2018-02-18   
217-250 1 Litchfield IL 6529 T-MOBILE USA, INC. 976   2018-02-18   
217-250 6 Litchfield IL 6529 T-MOBILE USA, INC. 976   2020-12-01   
217-250 7 Litchfield IL 6529 T-MOBILE USA, INC. 976   2020-12-01   
217-565 A Taylorville IL 6529 T-MOBILE USA, INC. 976      
217-565 8 Taylorville IL 6529 T-MOBILE USA, INC. 976   2011-09-16   
217-565 9 Taylorville IL 6529 T-MOBILE USA, INC. 976   2004-08-27   
217-940 A Taylorville IL 6529 T-MOBILE USA, INC. 976      
217-969 A Litchfield IL 6529 T-MOBILE USA, INC. 976      
217-969 9 Litchfield IL 6529 T-MOBILE USA, INC. 976   2021-01-28   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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