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: EXSPMOMERS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
816-629 A Excelsior Springs MCA4 MO 9533 SOUTHWESTERN BELL 524      
816-629 2 Excelsior Springs MCA4 MO 9533 SOUTHWESTERN BELL 524      
816-629 3 Excelsior Springs MCA4 MO 9533 SOUTHWESTERN BELL 524      
816-630 A Excelsior Springs MCA4 MO 9533 SOUTHWESTERN BELL 524      
816-637 A Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-637 2 Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-637 3 Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-637 5 Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-637 6 Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-637 9 Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-848 A Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      
816-848 0 Excelsior Springs MO 9533 SOUTHWESTERN BELL 524      

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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