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: 901 [Rate centres in NPA 901] [Dial plan for NPA 901]

NXX: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
901-557 A Arlington TN   525E ONVOY, LLC - TN 468      
901-557 0 Arlington TN   124F BANDWIDTH.COM CLEC, LLC - TN 468   2021-05-15   
901-557 1 Arlington TN   525E ONVOY, LLC - TN 468   2026-02-20   
901-557 2 Arlington TN   5562 METROPCS, INC. 468   2021-05-03   
901-557 3 Arlington TN   525E ONVOY, LLC - TN 468   2021-05-03   
901-557 4 Arlington TN   525E ONVOY, LLC - TN 468   2021-05-03   
901-557 5 Arlington TN   525E ONVOY, LLC - TN 468   2023-11-02   
901-557 6 Arlington TN   124F BANDWIDTH.COM CLEC, LLC - TN 468   2021-05-15   
901-557 7 Arlington TN   276F PEERLESS NETWORK OF TENNESSEE, LLC - TN 468   2021-07-11   
901-557 8 Arlington TN   525E ONVOY, LLC - TN 468   2022-08-25   
901-557 9 Arlington TN   124F BANDWIDTH.COM CLEC, LLC - TN 468   2021-09-20   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.