It currently serves as a relay station of FM Radio in Manila.

The station's transmitter is located in PLDT Building, Beatiles St., General Santos.

[1][2] The station began operations in 1976 as MRS 97.5, airing an adult contemporary format.

In 1998, after NBC was acquired by PLDT subsidiary MediaQuest Holdings, the station rebranded as Anna @ Rhythms 97.5 (later on shortened to Anna 97.5) and switched to a Top 40 format.

On November 4, 2024 it became relay station of FM Radio Manila 92.3 as part of its agreement in which PCMC will acquire most of NBC radio assets and frequencies, except for its Cebu and Cagayan de Oro stations.