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.

NPA: 314 [Rate centres in NPA 314] [Dial plan for NPA 314]

NXX: 742

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
314-742 A Mehlville MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520      
314-742 0 Mehlville MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2020-03-09   
314-742 1 Mehlville MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2020-08-30   
314-742 2 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-07-04   
314-742 3 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-07-04   
314-742 4 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-08   
314-742 5 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-08   
314-742 6 Mehlville MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2020-01-17   
314-742 7 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-26   
314-742 8 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-26   
314-742 9 Mehlville MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2020-11-26   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.