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.
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Switch: CLMAMOXADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-214 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-474 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-771 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-814 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-882 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-884 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      
573-886 A Columbia MO 9784 BRIGHTSPEED OF MISSOURI, LLC 521      

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

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