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: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 692

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-692 A Northbrook IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-10-30   
224-692 5 Northbrook IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-10-30   
224-692 6 Northbrook IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-10-30   
224-692 7 Northbrook IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-10-30   
224-692 8 Northbrook IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-10-30   
224-692 9 Northbrook IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-10-30   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.