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: LCLDMOXAPS0

Remotes:

Switch Switch name Switch type
LCLDMOXARP0  LACLEDE  DLM 
MNDNMOXXRP0  MENDON  RP 
MNDNMOXXRS0  MENDON  1RC 
RTVLMOXXRP0  ROTHVILLE  RP 
RTVLMOXXRS0  ROTHVILLE  1RC 
SMNRMOXARP0  SUMNER  RP 
SMNRMOXARS0  SUMNER  1RC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
660-470 A Laclede MO 1885 WINDSTREAM MISSOURI, INC. 524      

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

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