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: MNBNIAXO2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
515-581 6 Adel IA 143H MINBURN TELEPHONE COMPANY - IA 632   2022-04-09   
515-642 A Perry IA 143H MINBURN TELEPHONE COMPANY - IA 632      
515-642 0 Perry IA 143H MINBURN TELEPHONE COMPANY - IA 632   2013-08-31   
515-642 6 Perry IA 143H MINBURN TELEPHONE COMPANY - IA 632   2013-08-31   
515-671 6 Des Moines IA 143H MINBURN TELEPHONE COMPANY - IA 632   2022-04-16   
515-969 6 Dallas Center IA 143H MINBURN TELEPHONE COMPANY - IA 632   2022-04-16   

Last updated: Wed, 01 Jan 2025 02:39:49 UTC

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