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: CRDLILXEX8X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-300 A Carbondale IL 224C ONVOY, LLC 362   2024-12-29   
618-591 A Eldorado IL 224C ONVOY, LLC 362      
618-668 A Golconda IL 224C ONVOY, LLC 362      
618-970 A Ava IL 224C ONVOY, LLC 362      
730-201 A Christopher IL 224C ONVOY, LLC 362      
730-202 A Raleigh Galatia IL 224C ONVOY, LLC 362      
730-203 A Shawneetown IL 224C ONVOY, LLC 362      
730-204 A Villa Ridge IL 224C ONVOY, LLC 362      
730-205 A Dongola IL 224C ONVOY, LLC 362      
730-206 A Ridgway IL 224C ONVOY, LLC 362      
730-252 A Herrin IL 224C ONVOY, LLC 362   2024-08-29   
730-302 A Benton IL 224C ONVOY, LLC 362   2024-05-12   
730-888 A Anna IL 224C ONVOY, LLC 362   2024-11-13   
730-999 A Marion IL 224C ONVOY, LLC 362   2024-11-13   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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