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.

Grundy Center, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-245 A GNCTIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-245 0 CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635   2024-08-15   
319-245 1 CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635   2024-08-15   
319-245 2 CDRRIADTDMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 635   2018-03-01   
319-245 3 CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-05-07   
319-245 5 MNTIIAAKDS0  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-05-11   
319-245 7 CDRRIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 635   2017-06-10   
319-245 9 GNCTIAXOPS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635   2015-09-14   
319-823 A CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-823 0 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635      
319-823 1 CDRRIADTX9X  6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 635   2014-02-06   
319-823 3 CDRRIAAX7MD  5562 METROPCS, INC. 635   2018-08-03   
319-823 6 CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-10-29   
319-823 8   593K MCC TELEPHONY LLC 635   2010-05-06   
319-824 A GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 1 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 2 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 3 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 4 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 5 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 6 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-824 8 CDRRIADTKMD  221F ONVOY, LLC - IA 635   2021-09-25   
319-824 9 GNCTIAXODS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 635      
319-825 A GNCTIAAJDS0  3614 GRUNDY CENTER COMMUNICATIONS UTILITY - IA 635      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.