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: DESMIADTXUX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-888 2 Grinnell IA 965H FRACTEL, LLC 632   2020-03-09   
641-888 4 Grinnell IA 965H FRACTEL, LLC 632   2020-03-09   
641-888 5 Grinnell IA 965H FRACTEL, LLC 632   2020-03-09   
641-888 7 Grinnell IA 965H FRACTEL, LLC 632   2020-03-09   
641-955 A Monroe IA 965H FRACTEL, LLC 632      
641-955 5 Monroe IA 965H FRACTEL, LLC 632   2020-09-14   
641-977 A New Sharon IA 965H FRACTEL, LLC 632      
641-977 7 New Sharon IA 965H FRACTEL, LLC 632   2020-09-14   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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