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.

Dunlap, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-643 A DNLPIAXORS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-643 1 DNLPIAXORS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-643 2 DNLPIAXORS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-643 3 RCCYIAXCHMD  221F ONVOY, LLC - IA 644      
712-643 5 DNLPIAXORS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-643 6 RCCYIAXCHMD  221F ONVOY, LLC - IA 644      
712-643 7 DNLPIAAC0MD  5395 FARMERS MUTUAL COOPERATIVE TELEPHONE COMPANY - IA 644      
712-643 9 DNLPIAXORP0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.