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: 773 [Rate centres in NPA 773] [Dial plan for NPA 773]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
773-868 A Chicago Zone 04-Lakeview IL CHCGILLWDS1  9329 AMERITECH ILLINOIS 358      
773-868 0 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 1 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 2 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 3 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 4 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 5 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 6 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 7 Chicago Zone 04-Lakeview IL   5562 METRO PCS, INC. 358   2014-10-12   
773-868 8 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      
773-868 9 Chicago Zone 04-Lakeview IL   9329 AMERITECH ILLINOIS 358      

Last updated: Wed, 01 Apr 2020 02:09:16 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.