The NBTC will in 2016 auction 45 MHz of bandwidth on the 1800-MHz spectrum now used by Total Access Communication Plc (DTAC).
DTAC signed a concession agreement with CAT Telecom to use the 1800-MHz spectrum to provide second-generation (2G) mobile service.
That concession is due to expire in 2018.DTAC was one of two failed bidders in the marathon Nov 11 auction, with a final bid of only 17.5 billion baht.
"We'll set the reserve price and spectrum value of DTAC's 1800-MHz spectrum ourselves without relying on studies conducted by the International Telecommunication Union like in previous auctions," Mr Takorn said.
"We want to create an appropriate benchmark for future spectrum allocation.