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: 337 [Rate centres in NPA 337] [Dial plan for NPA 337]

NXX: 444

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-444 A Parks LA LFYTLAMAXEZ  318J COMCAST IP PHONE, LLC 488      
337-444 0 Parks LA   4930 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. 488   2016-07-22   
337-444 1 Parks LA   749E ONVOY, LLC - LA 488   2019-01-05   
337-444 2 Parks LA   749E ONVOY, LLC - LA 488   2022-12-18   
337-444 3 Parks LA   749E ONVOY, LLC - LA 488   2021-04-05   
337-444 4 Parks LA   749E ONVOY, LLC - LA 488   2014-09-06   
337-444 5 Parks LA   749E ONVOY, LLC - LA 488   2021-02-21   
337-444 6 Parks LA   318J COMCAST IP PHONE, LLC 488      
337-444 7 Parks LA   3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488   2014-09-11   
337-444 8 Parks LA   318J COMCAST IP PHONE, LLC 488   2018-04-11   
337-444 9 Parks LA   749E ONVOY, LLC - LA 488   2019-01-05   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.