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: COVLILCQXRX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
730-219 2 Woodburn IL 224C ONVOY, LLC 520   2023-11-12   
730-226 0 Collinsville IL 224C ONVOY, LLC 520   2024-03-01   
730-226 1 Collinsville IL 224C ONVOY, LLC 520   2024-03-01   
730-226 3 Collinsville IL 224C ONVOY, LLC 520   2024-03-01   
730-230 1 Alton IL 224C ONVOY, LLC 520   2024-02-24   
730-230 2 Alton IL 224C ONVOY, LLC 520   2024-02-24   
730-230 3 Alton IL 224C ONVOY, LLC 520   2024-02-24   
730-231 0 East St Louis IL 224C ONVOY, LLC 520   2024-03-12   
730-231 1 East St Louis IL 224C ONVOY, LLC 520   2024-03-12   
730-231 2 East St Louis IL 224C ONVOY, LLC 520   2024-03-12   
730-231 3 East St Louis IL 224C ONVOY, LLC 520   2024-03-12   
730-240 A O'Fallon IL 224C ONVOY, LLC 520   2024-05-02   
730-240 0 O'Fallon IL 224C ONVOY, LLC 520   2024-05-02   
730-240 1 O'Fallon IL 224C ONVOY, LLC 520   2024-05-02   
730-251 A Salem IL 224C ONVOY, LLC 520   2024-07-05   
730-251 0 Salem IL 224C ONVOY, LLC 520   2024-07-05   
730-278 0 Centralia IL 224C ONVOY, LLC 520   2025-10-16   
730-278 1 Centralia IL 224C ONVOY, LLC 520   2025-11-28   
730-292 A East St Louis IL 224C ONVOY, LLC 520   2026-03-20   
730-292 0 East St Louis IL 224C ONVOY, LLC 520   2026-03-20   
730-666 A Dix IL 224C ONVOY, LLC 520   2026-02-17   
730-666 0 Dix IL 224C ONVOY, LLC 520   2026-02-17   
730-666 6 Dix IL 224C ONVOY, LLC 520   2026-02-17   
730-777 A Carlyle IL 224C ONVOY, LLC 520   2024-11-13   
730-777 0 Carlyle IL 224C ONVOY, LLC 520   2024-11-13   
730-777 2 Carlyle IL 224C ONVOY, LLC 520   2025-10-04   
730-777 7 Carlyle IL 224C ONVOY, LLC 520   2024-11-13   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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