Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 225 [Rate centres in NPA 225] [Dial plan for NPA 225]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
225-437 A White Castle LA BTRGLA19DMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 492      
225-437 0 White Castle LA   624H ONVOY SPECTRUM, LLC 492   2021-11-19   
225-437 1 White Castle LA   624H ONVOY SPECTRUM, LLC 492   2021-11-19   
225-437 2 White Castle LA   749E ONVOY, LLC - LA 492   2020-11-20   
225-437 3 White Castle LA   749E ONVOY, LLC - LA 492   2020-11-20   
225-437 5 White Castle LA   939H COMMIO, LLC 492   2022-07-23   
225-437 6 White Castle LA   516J TON80 COMMUNICATIONS, LLC 492   2021-06-21   
225-437 7 White Castle LA   749E ONVOY, LLC - LA 492   2021-03-08   
225-437 8 White Castle LA   749E ONVOY, LLC - LA 492   2021-03-08   
225-437 9 White Castle LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 492   2020-03-15   

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

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