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: DVNPIADTXZX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-967 A East Moline IL 516J TON80 COMMUNICATIONS, LLC 634      
319-566 A Richland IA 516J TON80 COMMUNICATIONS, LLC 634      
319-588 A Argyle IA 516J TON80 COMMUNICATIONS, LLC 634      
319-733 A Farmington IA 516J TON80 COMMUNICATIONS, LLC 634      
319-742 A Denmark IA 516J TON80 COMMUNICATIONS, LLC 634      
319-767 A Keokuk IA 516J TON80 COMMUNICATIONS, LLC 634      
319-922 A Salem IA 516J TON80 COMMUNICATIONS, LLC 634      
319-942 A Hillsboro IA 516J TON80 COMMUNICATIONS, LLC 634      
319-966 A Grandview IA 516J TON80 COMMUNICATIONS, LLC 634      
319-995 A Winfield IA 516J TON80 COMMUNICATIONS, LLC 634      
319-996 A Houghton IA 516J TON80 COMMUNICATIONS, LLC 634      
319-997 A New London IA 516J TON80 COMMUNICATIONS, LLC 634      
563-478 A New Vienna IA 516J TON80 COMMUNICATIONS, LLC 634      
563-624 A Epworth IA 516J TON80 COMMUNICATIONS, LLC 634      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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