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: HLCRIAXPRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
563-870 A Holy Cross IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 634      
563-870 1 Holy Cross IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 634      
563-870 2 Holy Cross IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 634      
563-870 3 Holy Cross IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 634      
563-870 4 Holy Cross IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 634      
563-870 5 Holy Cross IA 1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 634      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.