In a statement, it says that preparations for the process will start this month.
The transition will be undertaken step by step on a regional basis, with North East Netherlands being the first on October 2 and other regions following in 2019.
Customers have been informed about the need to change old Digitenne equipment for a new TV receiver. The transition will be completed by January 1, 2020 at the latest.
KPN also says that alongside the transition to DVB-T2 it is improving Digitenne as a product.
While the number of channels will remain the same, they will be offered in HD rather than SD.