The England international is in the final year of his contract, prompting speculation linking the Chelsea vice-captain with a move to Major League Soccer’s LA Galaxy and China’s Guizhou Rehne.
“There have been no talks about anything about an extension,” said Lampard.
“The ball is in Chelsea’s court. I’m a Chelsea player, as simple as that. I’ve had a great, great time here.
“Maybe things don’t last forever. Although I want it to last forever, you have to be big enough to know what it is.”
Lampard came on as a second-half substitute in a 3-1 victory over Monterrey in the Club World Cup semi-final on Thursday, his second appearance since returning from a calf problem.
The 34-year-old also revealed his desire to continue to play regular first-team football at the top level, with a summer exit looking increasingly likely.
“I’m not the kind of player to see out my time and sit with my bum on the bench too much. I want to be involved,” he added.
“That’s my character. I will keep trying to do that, whatever the circumstances.
“I can’t predict anything but I feel like I have two or three years at least in me at the top level. It is not for me to decide on this one.
“Whatever happens, I have had a great time at Chelsea. I am determined to play a few more years and see what pans out in the near future.”
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