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.

Switch: CHCGILLWDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
773-248 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-281 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-327 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-348 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-472 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-525 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-549 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 0 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 1 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 2 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 3 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 4 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 5 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 6 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 8 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-868 9 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-880 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-883 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-935 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-975 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.