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: KSCYMO24DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
816-313 A Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-313 0 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-313 1 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-313 3 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-313 4 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-313 6 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-353 A Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-356 A Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-358 A Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 A Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 0 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 1 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 2 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 3 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 4 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 5 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 6 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 7 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-737 9 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 A Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 0 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 2 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 3 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 6 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 8 Kansas City MO 9533 SOUTHWESTERN BELL 524      
816-743 9 Kansas City MO 9533 SOUTHWESTERN BELL 524      

Last updated: Sat, 02 May 2026 12:20:53 UTC

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