The Channel Islands' network of DAB radio transmitters has been sold to Tindle, which owns Channel 103 and Island FM.
The media company bought the network from Wales-based Nation Broadcasting.
Digital radio came to the islands in August 2021, after a 10-month delay due to the coronavirus pandemic.
The multiplex currently broadcasts 28 radio services to the Channel Island listeners from operators including the BBC, Global and News UK.
Jason Bryant, found of Nation, says that the DAB multiplex has been a 'tremendous success'.
"It's been a digital pioneer, being the first to launch exclusively in DAB+ and carrying the largest number of stations of any local multiplex currently operating.
We wish Tindle well as they develop their broadcast business on the Channel Islands."
Les Platons transmitter.
James Keen, Managing Director of Tindle CI Broadcasting says it's an exciting development for the Tindle Group, its staff, Channel Island radio listeners and advertisers alike.
"In less than a year, DAB’s reach in the Channel Islands has grown by more than a third with one in three people now using the platform every week.
Nation Broadcasting has delivered a large and diverse selection of radio stations to people in Jersey, Guernsey and Alderney and we look forward to building on their early success in years to come.”

Draft law scraps time limits on abortions in Jersey
Divide over approach to gender guidance in schools
Three charities awarded £500 grants in community campaign
Ministers back principle of social media 'restrictions' for under 16s
Passengers rerouted through Jersey Airport departures
A total ban on disposable vapes in Guernsey and Jersey is poised to take full effect
Islanders with COVID-19 symptoms reminded to avoid the hospital
2025 was the fourth warmest year on record