The Nation reported on 1 December 2011 that Total Access Communication (DTAC) has filed a lawsuit with the Central Administrative Court seeking termination of the National Broadcasting and Telecommunications Commission (NBTC) Notification on “Foreign Domination” of Telecom Businesses, which came into effect on 31 August 2011.

Of the three main mobile telecom operators in Thailand, DTAC has Norway's Telenor as its foreign strategic partner, and Advanced Info Service (AIS) has Singapore Telecom; only True Corp does not have a foreign strategic partner.

The Nation's report cites a source at NBTC as stating that the lawsuit stems from Telenor's concern that the NBTC regulations might adversely affect DTAC's plan to bid for broadband spectrum licenses, which the NBTC is expected to auction in 2012.