Oxígeno (first era)
After 2003, the station was renamed to 40 Principales, keeping their music format managed by Top 40; this did not last, as the brand would be quickly retired.
Oxígeno (second era)
In 2007, the former 40 Principales was rebranded to Oxígeno.
Oxígeno by Los 40
On July 1, 2020, Oxígeno and Los 40 were merged, forming Oxígeno by Los 40.