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: DCTRILATGMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-775 9 Decatur IL 6529 T-MOBILE USA, INC. 374      
217-848 A Decatur IL 6529 T-MOBILE USA, INC. 374      
217-848 0 Decatur IL 6529 T-MOBILE USA, INC. 374      
217-848 1 Decatur IL 6529 T-MOBILE USA, INC. 374      
217-848 2 Decatur IL 6529 T-MOBILE USA, INC. 374   2007-04-23   
217-848 3 Decatur IL 6529 T-MOBILE USA, INC. 374   2009-02-12   
217-848 4 Decatur IL 6529 T-MOBILE USA, INC. 374   2009-03-25   
217-848 5 Decatur IL 6529 T-MOBILE USA, INC. 374   2009-03-25   
217-848 6 Decatur IL 6529 T-MOBILE USA, INC. 374   2010-09-16   
217-848 7 Decatur IL 6529 T-MOBILE USA, INC. 374   2010-09-16   
217-848 8 Decatur IL 6529 T-MOBILE USA, INC. 374   2014-04-11   
217-848 9 Decatur IL 6529 T-MOBILE USA, INC. 374      
217-865 6 Elwin IL 6529 T-MOBILE USA, INC. 374   2024-02-08   
217-865 7 Elwin IL 6529 T-MOBILE USA, INC. 374   2024-02-08   
217-917 0 Decatur IL 6529 T-MOBILE USA, INC. 374   2004-03-20   
217-917 1 Decatur IL 6529 T-MOBILE USA, INC. 374   2004-03-20   
217-917 2 Decatur IL 6529 T-MOBILE USA, INC. 374   2004-03-20   
217-917 6 Decatur IL 6529 T-MOBILE USA, INC. 374   2016-10-09   
217-917 7 Decatur IL 6529 T-MOBILE USA, INC. 374   2016-10-09   
217-917 8 Decatur IL 6529 T-MOBILE USA, INC. 374   2016-10-09   
217-963 0 Harristown IL 5562 METROPCS, INC. 374   2015-07-04   
447-786 0 Harristown IL 6529 T-MOBILE USA, INC. 374   2024-02-08   
447-786 3 Harristown IL 6529 T-MOBILE USA, INC. 374   2024-02-08   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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