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: OKLWILOLDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
708-229 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-346 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-422 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-423 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-424 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-425 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-499 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-520 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-636 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-684 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-857 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      
708-952 A Oak Lawn IL 9329 ILLINOIS BELL TEL CO 358      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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