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: MTONILXCX4X

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-933 0 Humboldt IL 6529 T-MOBILE USA, INC. 976   2022-08-20   
217-933 2 Humboldt IL 6529 T-MOBILE USA, INC. 976   2018-02-18   
217-933 5 Humboldt IL 5562 METROPCS, INC. 976   2026-06-20   
217-940 A Taylorville IL 6529 T-MOBILE USA, INC. 976      
217-962 A Mattoon IL 6529 T-MOBILE USA, INC. 976      
217-962 0 Mattoon IL 5562 METROPCS, INC. 976      
217-962 1 Mattoon IL 6529 T-MOBILE USA, INC. 976      
217-969 A Litchfield IL 6529 T-MOBILE USA, INC. 976      
217-969 2 Litchfield IL 6529 T-MOBILE USA, INC. 976   2021-10-15   
217-969 9 Litchfield IL 6529 T-MOBILE USA, INC. 976   2021-01-28   
217-994 7 Effingham IL 6529 T-MOBILE USA, INC. 976   2011-08-29   
447-219 A Charleston IL 6529 T-MOBILE USA, INC. 976      
447-219 9 Charleston IL 6529 T-MOBILE USA, INC. 976   2022-01-21   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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