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: IWCYIA7000Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-306 8 Jesup IA 490J DISH WIRELESS, LLC 635   2023-11-15   
319-307 4 Dunkerton IA 490J DISH WIRELESS, LLC 635   2023-11-15   
319-314 5 Readlyn IA 490J DISH WIRELESS, LLC 635   2023-11-15   
319-340 5 Waterloo IA 490J DISH WIRELESS, LLC 635   2023-06-11   
319-381 5 Iowa City IA 490J DISH WIRELESS, LLC 635   2023-06-11   
319-403 A Cedar Rapids IA 490J DISH WIRELESS, LLC 635      
319-403 9 Cedar Rapids IA 490J DISH WIRELESS, LLC 635   2023-06-11   
319-421 2 Shell Rock IA 490J DISH WIRELESS, LLC 635   2023-07-23   
319-445 7 Reinbeck IA 490J DISH WIRELESS, LLC 635   2023-10-15   
319-652 6 Traer IA 490J DISH WIRELESS, LLC 635   2023-10-15   
319-663 5 Blairstown IA 490J DISH WIRELESS, LLC 635   2023-12-18   
319-674 7 Wellman IA 490J DISH WIRELESS, LLC 635   2023-12-18   
319-722 4 Williamsburg IA 490J DISH WIRELESS, LLC 635   2023-12-18   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.