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: 708 [Rate centres in NPA 708] [Dial plan for NPA 708]

NXX: 773

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
708-773 A Chicago Heights IL CHCGILWURMD  965H FRACTEL, LLC 358      
708-773 0 Chicago Heights IL   224C ONVOY, LLC 358   2022-12-11   
708-773 1 Chicago Heights IL   224C ONVOY, LLC 358   2022-12-11   
708-773 2 Chicago Heights IL   224C ONVOY, LLC 358   2022-12-11   
708-773 3 Chicago Heights IL   965H FRACTEL, LLC 358   2022-01-02   
708-773 4 Chicago Heights IL   224C ONVOY, LLC 358   2022-09-30   
708-773 5 Chicago Heights IL   224C ONVOY, LLC 358   2022-09-30   
708-773 6 Chicago Heights IL   224C ONVOY, LLC 358   2022-09-30   
708-773 7 Chicago Heights IL   224C ONVOY, LLC 358   2022-09-30   
708-773 8 Chicago Heights IL   224C ONVOY, LLC 358   2022-09-30   
708-773 9 Chicago Heights IL   224C ONVOY, LLC 358   2022-12-11   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.