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: SRBOIAXODS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-527 A Lynnville IA 1232 LYNNVILLE TELEPHONE COMPANY 632      
641-593 A Searsboro IA 1292 SEARSBORO TEL. CO., INC. 632      
641-678 A Searsboro IA 1292 SEARSBORO TEL. CO., INC. 632      
641-741 A Killduff IA 747C KILLDUFF TELEPHONE COMPANY 632      
641-798 A Killduff IA 747C KILLDUFF TELEPHONE COMPANY 632      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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