The 225 area code is one of the five telephone area codes designated for the state of Louisiana. Specifically, the 225 area code covers Baton Rouge and its surrounding areas. Louisiana's telecommunication infrastructure has evolved over time, with the introduction of new area codes to cater to the growing population and increasing demand for telephone services. The state's other area codes include 318, 337, 504, and 985, serving various regions such as Shreveport, Lafayette, New Orleans, and Houma, respectively. The Louisiana Public Service Commission (LPSC) has
approved an overlay area code, 457, to provide additional numbering resources in the 318 area code region. Existing customers will retain their current telephone numbers, but new customers or additional lines will receive the new overlay. This change necessitates 10-digit dialing for local calls. The decision was made as the 318 area code is anticipated to exhaust its new numbers by early 2026. The 318 area code caters to multiple parishes in Louisiana.
Louisiana has seen a notable shift toward mobile communication. Data from 2023 shows that 79.6% of adults in Louisiana rely solely on mobile phones, up from 64.0% in 2019—a gain of nearly 16 percentage points in four years. Louisiana residents who primarily use a wireless phone make up 11.6%, while 3.8% rely on both mobile and landline. Adults who mainly rely on landlines and those who only use landlines have declined to 2.3% and 1.5% respectively. The proportion of adults without phones stands at 1.2%. Louisiana's dual-user segment has dropped sharply since 2019, reflecting a strong embrace of mobile-first communication across the state.