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: WNVLMOXAVMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
636-213 A Warrenton MO 6529 T-MOBILE USA, INC. 520      
636-290 A Troy MO 6529 T-MOBILE USA, INC. 520      
636-293 A O'Fallon MO 6529 T-MOBILE USA, INC. 520      
636-318 A Troy MO 6529 T-MOBILE USA, INC. 520      
636-339 A O'Fallon MO 6529 T-MOBILE USA, INC. 520      
636-378 A St Peters MO 6529 T-MOBILE USA, INC. 520      
636-383 A Troy MO 5562 METROPCS, INC. 520      
636-497 A Wentzville MO 6529 T-MOBILE USA, INC. 520      
636-538 A Wentzville MO 6529 T-MOBILE USA, INC. 520      
636-679 A Wentzville MO 6529 T-MOBILE USA, INC. 520      
636-841 A Wentzville MO 6529 T-MOBILE USA, INC. 520      
636-849 A O'Fallon MO 6529 T-MOBILE USA, INC. 520      

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

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