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: FLRVMOGEDSA

Remotes:

Switch Switch name Switch type
BNTRMOFLRS4  BONNE TERRE  5ER 
BSMRMOPERS0  BISMARCK  5ER 
LDWDMOLORS3  LEADWOOD  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-327 A Flat River MO 9533 SOUTHWESTERN BELL 520      
573-327 5 Flat River MO 9533 SOUTHWESTERN BELL 520      
573-431 A Flat River MO 9533 SOUTHWESTERN BELL 520      
573-518 A Flat River MO 9533 SOUTHWESTERN BELL 520      
573-518 0 Flat River MO 9533 SOUTHWESTERN BELL 520      
573-518 1 Flat River MO 9533 SOUTHWESTERN BELL 520      
573-518 2 Flat River MO 9533 SOUTHWESTERN BELL 520      
573-518 3 Flat River MO 9533 SOUTHWESTERN BELL 520      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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