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: STLSMOGZTMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
314-636 A Oakville MO 616J LEAP TELECOM, LLC 520      
314-636 0 Oakville MO 616J LEAP TELECOM, LLC 520   2023-04-29   
314-636 1 Oakville MO 616J LEAP TELECOM, LLC 520   2023-04-29   
557-222 A St Louis MO 616J LEAP TELECOM, LLC 520      
557-222 2 St Louis MO 616J LEAP TELECOM, LLC 520   2023-06-18   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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