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: GRDNNERQRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
308-282 A Gordon NE 1577 GREAT PLAINS COMMUNICATIONS, INC. 646      
605-288 A North Gordon SD 1577 GREAT PLAINS COMMUNICATIONS, INC. 646      

Last updated: Sat, 02 May 2026 12:20:53 UTC

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