Feb 23 (Reuters) - Spain's Telefonica:
* Says it could launch a market listing of radio mast unit Telxius at anytime but has made no commitment on a potential stock flotation to stake-holder KKR
* Says the company is closely monitoring any potential purchase opportunities in Mexican market
* Chairman Jose Maria Alvarez-Pallete says: "We are very interested in any consolidation or transformation moves in the Mexican market and believe that we have room to play in Mexico, organically or inorganically, if something arises."
* Says still preparing a listing, or partial listing, of British subsidiary O2 Source text for Eikon: Further company coverage: (Reporting by Madrid Newsroom; Editing by Sonya Dowsett)