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: KSCYMO09QMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
660-324 A Slater MO 516C AT&T CORP. 524      
816-208 A Leavenworth Lansing MO 516C AT&T CORP. 524      
816-239 A Adrian MO 516C AT&T CORP. 524      
816-492 A Kansas City MO 516C AT&T CORP. 524      
816-615 A Richmond MO 516C AT&T CORP. 524      
816-673 A Kansas City MO 516C AT&T CORP. 524      
816-851 A San Antonio MO 516C AT&T CORP. 524      
913-675 A Leavenworth KS 516C AT&T CORP. 524      

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

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