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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 931 [Rate centres in NPA 931] [Dial plan for NPA 931]

NXX: 913

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
931-913 A Tullahoma TN NSVMTN177MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470      
931-913 0 Tullahoma TN NSVMTN177MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470      
931-913 1 Tullahoma TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 470   2026-04-04   
931-913 3 Tullahoma TN NSVMTN177MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 470      
931-913 6 Tullahoma TN NSVMTN03DMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 470   2022-09-01   
931-913 8 Tullahoma TN NSVLTNMT83Z  525E ONVOY, LLC - TN 470   2021-10-25   
931-913 9 Tullahoma TN   525E ONVOY, LLC - TN 470   2026-05-08   

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.