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: 985 [Rate centres in NPA 985] [Dial plan for NPA 985]

NXX: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
985-303 A Houma LA NWORLAMTX6Y  5562 METROPCS, INC. 490      
985-303 0 Houma LA   516C AT&T CORP. 490   2015-07-15   
985-303 1 Houma LA   153F BANDWIDTH.COM CLEC, LLC - LA 490   2015-11-15   
985-303 2 Houma LA   749E ONVOY, LLC - LA 490   2016-01-15   
985-303 3 Houma LA   5562 METROPCS, INC. 490   2016-07-29   
985-303 4 Houma LA   653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 490   2017-10-13   
985-303 5 Houma LA   5562 METROPCS, INC. 490   2017-12-04   
985-303 6 Houma LA   3232 LEVEL 3 COMMUNICATIONS, LLC - LA 490   2015-07-12   
985-303 7 Houma LA   508J CENTURYLINK COMMUNICATIONS, LLC 490   2016-01-22   
985-303 8 Houma LA   819C INTRADO COMMUNICATIONS, LLC 490   2016-09-02   
985-303 9 Houma LA   5562 METROPCS, INC. 490   2015-02-22   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.