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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-561 A Duson LA   749E ONVOY, LLC - LA 488      
337-561 0 Duson LA   749E ONVOY, LLC - LA 488   2016-05-30   
337-561 1 Duson LA   749E ONVOY, LLC - LA 488   2016-05-30   
337-561 2 Duson LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2017-07-02   
337-561 3 Duson LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2019-06-23   
337-561 5 Duson LA   088E COMCAST PHONE OF LOUISIANA, LLC - LA 488   2018-04-11   
337-561 8 Duson LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2017-12-26   
337-561 9 Duson LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2017-12-26   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.