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: 466

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-466 A Glen Ellyn IL CHCGILWUTMD  516J TON80 COMMUNICATIONS, LLC 358      
331-466 0 Glen Ellyn IL CHCGILCNHMD  073H TELNYX LLC 358   2022-05-12   
331-466 1 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   
331-466 2 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   
331-466 3 Glen Ellyn IL CHCGILWUTMD  516J TON80 COMMUNICATIONS, LLC 358   2022-04-21   
331-466 4 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   
331-466 5 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   
331-466 6 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   
331-466 7 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-07-03   
331-466 8 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   
331-466 9 Glen Ellyn IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-10-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.