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: STLSMOPLDS4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
314-296 A St Louis MO 4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2011-11-28   
314-669 A St Louis MO 4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2011-05-21   
636-266 A Washington MO 4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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