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: STLSMOGZHMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-916 A Cherryville MO 516J TON80 COMMUNICATIONS, LLC 520      
618-832 A Jerseyville IL 516J TON80 COMMUNICATIONS, LLC 520      
618-872 A Glen Carbon IL 516J TON80 COMMUNICATIONS, LLC 520      
618-886 A Troy IL 516J TON80 COMMUNICATIONS, LLC 520      
618-989 A Wood River IL 516J TON80 COMMUNICATIONS, LLC 520      
636-746 A Maxville MO 516J TON80 COMMUNICATIONS, LLC 520      
636-837 A Herculaneum-Pevely MO 516J TON80 COMMUNICATIONS, LLC 520      
636-867 A Jonesburg MO 516J TON80 COMMUNICATIONS, LLC 520      
636-874 A O'Fallon MO 516J TON80 COMMUNICATIONS, LLC 520      

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

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