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: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 381

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-381 A La Salle IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
779-381 0 La Salle IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-04-05   
779-381 1 La Salle IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2024-01-16   
779-381 2 La Salle IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2024-04-28   
779-381 8 La Salle IL CHCGILWUKMD  939H COMMIO, LLC 358   2024-02-04   
779-381 9 La Salle IL CHCGILWUKMD  939H COMMIO, LLC 358   2024-02-04   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.