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.
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Switch: KSCYMO41DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
816-207 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-246 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-251 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-287 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-317 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-347 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-524 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-525 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-537 A Greenwood MO 9533 SOUTHWESTERN BELL 524      
816-554 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-607 A Lees Summit MO 9533 SOUTHWESTERN BELL 524      
816-623 A Greenwood MO 9533 SOUTHWESTERN BELL 524      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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