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: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX: 246

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-246 A Lemont IL ELGNILOT0MD  6529 T-MOBILE USA, INC. 358      
331-246 0 Lemont IL   224C ONVOY, LLC 358   2019-07-07   
331-246 1 Lemont IL   224C ONVOY, LLC 358   2019-07-07   
331-246 2 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 3 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 4 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 5 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 6 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 7 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 8 Lemont IL   6529 T-MOBILE USA, INC. 358   2019-07-15   
331-246 9 Lemont IL   6529 T-MOBILE USA, INC. 358   2018-12-16   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.