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: SPFDMOTUDS0

Remotes:

Switch Switch name Switch type
JPLNMOMARS0  JOPLIN  RSC 
SPFDMOMCRS0  SPRINGFIELD  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
417-730 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-820 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-823 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-841 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-877 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-881 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-882 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-883 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-885 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-886 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-887 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-888 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-889 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-890 A Springfield MO 9533 SOUTHWESTERN BELL 522      
417-891 A Springfield MO 9533 SOUTHWESTERN BELL 522      

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

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