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: STLSMOWQDS2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
235-200 A Cardwell MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-200 0 Cardwell MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-200 2 Cardwell MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-210 A Flat River MO 093F ONVOY, LLC - MO 520   2025-06-01   
235-210 0 Flat River MO 093F ONVOY, LLC - MO 520   2025-06-01   
235-222 A Birch Tree MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-222 0 Birch Tree MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-222 2 Birch Tree MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-229 0 Camdenton MO 093F ONVOY, LLC - MO 520   2026-04-04   
235-229 1 Camdenton MO 093F ONVOY, LLC - MO 520   2026-05-21   
235-333 A Jackson MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-333 0 Jackson MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-333 3 Jackson MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-444 A Oran MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-444 0 Oran MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-444 4 Oran MO 093F ONVOY, LLC - MO 520   2025-09-09   
235-529 A Fredericktown MO 093F ONVOY, LLC - MO 520   2026-02-17   
235-529 8 Fredericktown MO 093F ONVOY, LLC - MO 520   2026-02-17   
235-529 9 Fredericktown MO 093F ONVOY, LLC - MO 520   2026-02-17   
235-666 A Eldon MO 093F ONVOY, LLC - MO 520   2026-02-17   
235-666 0 Eldon MO 093F ONVOY, LLC - MO 520   2026-02-17   
235-666 6 Eldon MO 093F ONVOY, LLC - MO 520   2026-02-17   
235-777 A Fisk MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-777 0 Fisk MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-777 7 Fisk MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-999 A Campbell MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-999 0 Campbell MO 093F ONVOY, LLC - MO 520   2024-11-14   
235-999 9 Campbell MO 093F ONVOY, LLC - MO 520   2024-11-14   
314-207 A St Louis MO 093F ONVOY, LLC - MO 520      
314-207 0 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 1 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 2 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 3 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 4 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 5 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 6 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 7 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 8 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-207 9 St Louis MO 093F ONVOY, LLC - MO 520   2016-01-18   
314-208 2 Sappington MO 093F ONVOY, LLC - MO 520   2020-07-04   
314-208 3 Sappington MO 093F ONVOY, LLC - MO 520   2020-07-04   
314-222 A Ladue MO 093F ONVOY, LLC - MO 520      
314-222 4 Ladue MO 093F ONVOY, LLC - MO 520      
314-228 A Creve Coeur MO 093F ONVOY, LLC - MO 520      
314-228 0 Creve Coeur MO 093F ONVOY, LLC - MO 520   2004-07-26   
314-228 1 Creve Coeur MO 093F ONVOY, LLC - MO 520   2004-07-26   
314-228 2 Creve Coeur MO 093F ONVOY, LLC - MO 520   2004-07-26   
314-228 3 Creve Coeur MO 093F ONVOY, LLC - MO 520   2004-07-26   
314-228 4 Creve Coeur MO 093F ONVOY, LLC - MO 520   2004-07-26   
314-228 5 Creve Coeur MO 093F ONVOY, LLC - MO 520   2004-07-26   

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.