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.
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Switch: CHCGILPUDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
773-260 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 3 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 4 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 5 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 6 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 7 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 8 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-260 9 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-264 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-291 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-341 5 Chicago Zone 10-Beverly IL 9329 ILLINOIS BELL TEL CO 358   2004-12-11   
773-468 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 0 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 1 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 2 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 3 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 4 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 5 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 6 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-546 7 Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-568 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-660 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-785 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-821 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-928 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      
773-982 3 Chicago Zone 10-Beverly IL 9329 ILLINOIS BELL TEL CO 358   2009-07-30   
773-995 A Chicago Zone 10-Pullman IL 9329 ILLINOIS BELL TEL CO 358      

Last updated: Sun, 17 May 2026 03:26:51 UTC

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