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

NXX: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
225-233 A Denham Springs LA BTRGLAGWFMD  749E ONVOY, LLC - LA 492   2024-04-01   
225-233 0 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-04-01   
225-233 1 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-04-01   
225-233 2 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-04-01   
225-233 3 Denham Springs LA   145J TERRA NOVA TELECOM INC. 492   2024-04-21   
225-233 4 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-06-07   
225-233 5 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-06-07   
225-233 6 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-06-07   
225-233 7 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-07-15   
225-233 8 Denham Springs LA   515J IP HORIZON LLC 492   2024-04-20   
225-233 9 Denham Springs LA   749E ONVOY, LLC - LA 492   2024-05-03   

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

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