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: NSVLTN90DS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
615-522 A Nashville TN 7344 XO TENNESSEE, INC. 470      
615-522 0 Nashville TN 7344 XO TENNESSEE, INC. 470      

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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