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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Switch: DVNPIA80XPX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
779-248 2 Galena IL 6529 T-MOBILE USA, INC. 634   2018-04-09   
815-281 3 Galena IL 6529 T-MOBILE USA, INC. 634   2009-06-29   
815-402 1 Galena IL 6529 T-MOBILE USA, INC. 634   2008-01-27   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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