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: STLSMO01DSC

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
314-247 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-259 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-342 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-436 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-552 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-554 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-588 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-589 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-601 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-612 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-613 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-617 A St Louis MO 6844 METROTEL 520      
314-621 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-622 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-632 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-641 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-877 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-969 A St Louis MO 9533 SOUTHWESTERN BELL 520      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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