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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
574-297 1 Monticello IN 6529 T-MOBILE USA, INC. 332   2003-12-03   
574-373 1 Warsaw IN 6529 T-MOBILE USA, INC. 332   2021-03-05   
574-373 6 Warsaw IN 6529 T-MOBILE USA, INC. 332   2021-12-16   
574-373 7 Warsaw IN 5562 METROPCS, INC. 332   2021-10-15   
574-373 9 Warsaw IN 6529 T-MOBILE USA, INC. 332   2021-12-16   
574-376 A Warsaw IN 6529 T-MOBILE USA, INC. 332      
574-376 0 Warsaw IN 6529 T-MOBILE USA, INC. 332      
574-376 3 Warsaw IN 5562 METROPCS, INC. 332   2011-04-12   
574-376 9 Warsaw IN 5562 METROPCS, INC. 332   2006-09-10   
574-549 8 Warsaw IN 6529 T-MOBILE USA, INC. 332   2006-10-28   
574-581 2 Monticello IN 6529 T-MOBILE USA, INC. 332   2022-08-02   
574-581 3 Monticello IN 6529 T-MOBILE USA, INC. 332   2022-08-02   
574-581 4 Monticello IN 6529 T-MOBILE USA, INC. 332   2022-08-02   
574-808 A Monticello IN 6529 T-MOBILE USA, INC. 332      
574-808 8 Monticello IN 6529 T-MOBILE USA, INC. 332   2006-04-20   
574-808 9 Monticello IN 6529 T-MOBILE USA, INC. 332   2005-01-07   

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

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