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: OFLNMOXADS0

Remotes:

Switch Switch name Switch type
FOLYMOXARS1  FOLEY  RLC 
OLMRMOXARS1  OLD MONROE  RSS 
WNFDMOXARS0  WINFIELD  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
636-240 A O'Fallon MCA4 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-272 A O'Fallon MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-281 A O'Fallon MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-379 A O'Fallon MCA4 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-385 A O'Fallon MCA4 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-474 A O'Fallon MCA4 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-978 A O'Fallon MCA4 MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-980 A O'Fallon MO 9787 BRIGHTSPEED OF MISSOURI, LLC 520      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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