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: 413F HILL COUNTRY TELECOMMUNICATIONS, LLC - TX

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
325-215 2 Junction TX FRDNTXXA0MD  961   2015-10-05   
325-294 A Mason TX FRDNTXXA0MD  961      
325-294 4 Mason TX FRDNTXXA0MD  961   2009-06-14   
325-323 3 Big Lake TX FRDNTXXA0MD  961   2023-12-09   
325-413 1 Sonora TX FRDNTXXA0MD  961   2017-10-26   
325-475 5 London TX   961   2025-10-26   
325-577 4 Eldorado TX FRDNTXXA0MD  961   2023-12-09   
830-304 A Fredericksburg TX CMFTTXXADS1  566      
830-315 A Kerrville TX INGRTXXADS1  566      
830-644 1 Stonewall TX CMFTTXXADS1  566   2016-02-07   
830-942 0 Harper TX INGRTXXADS1  566   2023-12-09   

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

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