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: STLSMO05DS2

Remotes:

Switch Switch name Switch type
STLSMO04RPA  FOREST  G6 
STLSMO05RPA  JEFFERSON  G6 
STLSMO08RPA  PROSPECT  G6 
STLSMO23RPA  OVERLAND  G6 
STLSMO24RPA  RIVERVIEW  RP 
STLSMO40RPA  FLORISSANT  RP 
STLSMO43RPA  HAZELWOOD  G6 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
314-489 A St Louis MO 9533 SOUTHWESTERN BELL 520      
314-489 1 St Louis MO 9533 SOUTHWESTERN BELL 520      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.