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.
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Switch: HLBOKS100MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
620-416 A Hillsboro KS 433H TC WIRELESS, INC - KS 532      
620-416 0 Hillsboro KS 433H TC WIRELESS, INC - KS 532   2020-11-30   
620-531 1 Durham KS 433H TC WIRELESS, INC - KS 532   2023-08-10   

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

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