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: DFNCMOXARS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
636-798 A Defiance MCA5 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-798 0 Defiance MCA5 MO 993E BANDWIDTH.COM CLEC, LLC - MO 520   2022-02-21   
636-798 2 Defiance MCA5 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-798 5 Defiance MCA5 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520   2007-10-18   
636-987 A Defiance MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-987 2 Defiance MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-987 9 Defiance MO 993E BANDWIDTH.COM CLEC, LLC - MO 520   2021-08-06   

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

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