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: VCTAILXDRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-484 A Altona IL 1054 MID CENTURY TEL. COOP., INC. 977      
309-639 A Williamsfield IL 1054 MID CENTURY TEL. COOP., INC. 977      
309-875 A Maquon IL 1054 MID CENTURY TEL. COOP., INC. 977      
309-876 A Gilson IL 1054 MID CENTURY TEL. COOP., INC. 977      
309-879 A Victoria IL 1054 MID CENTURY TEL. COOP., INC. 977      
309-927 A Bishop Hill IL 1054 MID CENTURY TEL. COOP., INC. 977      
309-995 A La Fayette IL 1054 MID CENTURY TEL. COOP., INC. 977      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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