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.
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Audubon, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-205 A ADBNIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-205 0   444G AUREON COMMUNICATIONS, LLC 644   2020-08-28   
712-205 1   6701 AERIAL COMMUNICATIONS, INC. 644   2024-09-05   
712-205 4   5562 METROPCS, INC. 644   2025-04-27   
712-205 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2024-08-17   
712-205 9   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644   2016-09-08   
712-563 A ADBNIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 0   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 1   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 2   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 3   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 4   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 5   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-563 6   6266 UNITED STATES CELLULAR - IA 644   2009-04-20   
712-563 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2021-05-31   
712-563 8   145J TERRA NOVA TELECOM INC. 644   2026-02-05   
712-563 9   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-588 A ADBNIAXO0MD  593K MCC TELEPHONY LLC 644      
712-588 1   593K MCC TELEPHONY LLC 644   2010-04-16   
712-588 5   145J TERRA NOVA TELECOM INC. 644   2025-05-31   
712-588 7   221F ONVOY, LLC - IA 644   2021-05-21   
712-588 8   221F ONVOY, LLC - IA 644   2021-09-20   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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