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: STLSMOZE7MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
314-204 A St Louis MO 6630 SPOK, INC. 520      
314-245 A St Louis MO 6630 SPOK, INC. 520      
314-318 A St Louis MO 6630 SPOK, INC. 520      
314-460 A St Louis MO 6630 SPOK, INC. 520      
314-507 A Ladue MO 6630 SPOK, INC. 520      
314-751 A St Louis MO 6630 SPOK, INC. 520      
314-870 A Ladue MO 6630 SPOK, INC. 520      
314-902 A St Louis MO 6630 SPOK, INC. 520      
314-903 A St Louis MO 6630 SPOK, INC. 520      
314-905 A St Louis MO 6630 SPOK, INC. 520      
314-908 A St Louis MO 6630 SPOK, INC. 520      
314-927 A St Louis MO 6630 SPOK, INC. 520      
314-929 A St Louis MO 6630 SPOK, INC. 520      
314-945 A St Louis MO 6630 SPOK, INC. 520      
314-990 A St Louis MO 6630 SPOK, INC. 520      
314-999 A St Louis MO 6630 SPOK, INC. 520      
636-320 A Harvester MO 6630 SPOK, INC. 520      
636-403 A Harvester MO 6630 SPOK, INC. 520      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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