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: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]

NXX: 389

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-389 A Sicily Island LA SCISLAMARS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 486      
318-389 0 Sicily Island LA   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 486      
318-389 1 Sicily Island LA   153F BANDWIDTH.COM CLEC, LLC - LA 486   2012-01-22   
318-389 2 Sicily Island LA   749E ONVOY, LLC - LA 486   2022-12-18   
318-389 4 Sicily Island LA   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 486      
318-389 5 Sicily Island LA   9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 486      
318-389 6 Sicily Island LA   624H ONVOY SPECTRUM, LLC 486   2023-07-21   
318-389 7 Sicily Island LA   749E ONVOY, LLC - LA 486   2023-09-28   
318-389 8 Sicily Island LA   749E ONVOY, LLC - LA 486   2019-03-31   
318-389 9 Sicily Island LA   749E ONVOY, LLC - LA 486   2019-03-31   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.