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: 225 [Rate centres in NPA 225] [Dial plan for NPA 225]

NXX: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
225-438 A Springfield LA BTRGLAGWXEY  153F BANDWIDTH.COM CLEC, LLC - LA 492      
225-438 0 Springfield LA   153F BANDWIDTH.COM CLEC, LLC - LA 492   2018-09-07   
225-438 1 Springfield LA   153F BANDWIDTH.COM CLEC, LLC - LA 492   2019-06-07   
225-438 2 Springfield LA   153F BANDWIDTH.COM CLEC, LLC - LA 492   2019-07-26   
225-438 3 Springfield LA   073H TELNYX LLC 492   2019-09-08   
225-438 4 Springfield LA   749E ONVOY, LLC - LA 492   2020-06-27   
225-438 5 Springfield LA   749E ONVOY, LLC - LA 492   2020-06-27   
225-438 6 Springfield LA   749E ONVOY, LLC - LA 492   2020-11-20   
225-438 7 Springfield LA   749E ONVOY, LLC - LA 492   2020-11-20   
225-438 8 Springfield LA   749E ONVOY, LLC - LA 492   2019-08-19   
225-438 9 Springfield LA   749E ONVOY, LLC - LA 492   2019-08-19   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.