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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OCN: 2214 COLUMBINE TELCO DBA SILVER STAR COMMUNICATIONS

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
208-354 A Driggs ID DRGSIDMADS2  652      
208-456 A Driggs ID DRGSIDMADS2  652      
208-456 0 Driggs ID DRGSIDMADS2  652      
208-456 2 Driggs ID DRGSIDMADS2  652      
208-483 A Irwin ID DRGSIDMADS2  652      
208-483 2 Irwin ID DRGSIDMADS2  652      
208-483 3 Irwin ID DRGSIDMADS2  652      
208-483 4 Irwin ID   652   2025-03-25   
208-483 6 Irwin ID   652   2025-09-18   
208-491 A Driggs ID DRGSIDMADS2  652      
208-491 0 Driggs ID DRGSIDMADS2  652   2019-09-15   
208-574 A Wayan ID DRGSIDMADS2  652      
208-787 A Driggs ID DRGSIDMADS2  652      
307-353 A Alta WY DRGSIDMADS2  652      
307-576 A Leigh Canyon WY DRGSIDMADS2  652      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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