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: KNNTMOTUDS1

Remotes:

Switch Switch name Switch type
CDWLMOOLRSC  CARDWELL  AXR 
CMPBMOCHRSH  CAMPBELL  AXR 
CTVLMOEDRSL  CARUTHERSVILLE  AXR 
DRNGMOPLRSM  DEERING  AXR 
GIDNMOHIRSD  GIDEON  AXR 
HAYTMOFLRSJ  HAYTI  AXR 
HLCMMOSWRSE  HOLCOMB  AXR 
HRNVMOPERSA  HORNERSVILLE  AXR 
MLDNMOCRRSF  MALDEN  AXR 
RISCMOEXRSG  RISCO  AXR 
SENTMORERSB  SENATH  AXR 
WARDMOMARSK  WARDELL MAYFAIR  AXR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-717 A Kennett MO 9533 SOUTHWESTERN BELL 520      
573-888 A Kennett MO 9533 SOUTHWESTERN BELL 520      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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