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: ROLLMOXAWMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-426 A Rolla MO 3275 FIDELITY CABLEVISION, LLC 520      
573-451 A St Robert MO 3275 FIDELITY CABLEVISION, LLC 520      
573-452 A Fort Leonard Wood MO 3275 FIDELITY CABLEVISION, LLC 520      
573-453 A Salem MO 3275 FIDELITY CABLEVISION, LLC 520      
573-456 A Newburg MO 3275 FIDELITY CABLEVISION, LLC 520      
573-460 A Richland MO 3275 FIDELITY CABLEVISION, LLC 520      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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