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: CKVLTNNK0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
931-322 0 Monterey TN 204G TWIN LAKES COMMUNICATIONS, INC. - TN 470   2020-09-15   
931-340 0 Crossville TN 204G TWIN LAKES COMMUNICATIONS, INC. - TN 470   2021-02-11   
931-400 A Cookeville TN 204G TWIN LAKES COMMUNICATIONS, INC. - TN 470      
931-400 0 Cookeville TN 204G TWIN LAKES COMMUNICATIONS, INC. - TN 470   2011-01-28   
931-559 A Cookeville TN 204G TWIN LAKES COMMUNICATIONS, INC. - TN 470      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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