The 50-year-old actress featured alongside Cox, Aniston, Matt LeBlanc, Matthew Perry and David Schwimmer in the hit sitcom 'Friends', which went off air 10 years back.
Kudrow said the three stars had a great time at the dinner, reported Us magazine.
"It was really fun, great to see them," the actress said of Aniston, 45, and Cox, 50.
The stars have stayed close through the years, despite starring in different projects and Kudrow feels time has not mattered to them.
"Fun, really fun. It's people I spent every day with for 10 years and no matter how much time has passed or how much we haven't been able to see each other, it doesn't matter," she said.