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: DVNPIAEA9MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-386 A Mediapolis IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
319-388 A Donnellson IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-218 A Wilton IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634   2024-05-07   
563-236 A Andrew IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-240 A LaMotte IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-265 A Davenport IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-266 A Bernard IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-268 A Baldwin IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-269 A Cascade IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-274 A Otter Creek IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      
563-351 A Durant IA 9877 LEVEL 3 COMMUNICATIONS, LLC - IA 634      

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

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