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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
417-655 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-655 9 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 0 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 1 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 2 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 3 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 4 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 5 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 6 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 8 Springfield MO 9533 SOUTHWESTERN BELL 522      
417-833 9 Springfield MO 9533 SOUTHWESTERN BELL 522      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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