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: DVNPIA80XPX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
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   
815-776 4 Galena IL 6529 T-MOBILE USA, INC. 634   2021-06-11   
815-776 6 Galena IL 6529 T-MOBILE USA, INC. 634   2021-06-11   
815-776 8 Galena IL 6529 T-MOBILE USA, INC. 634   2021-06-11   

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Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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