Yes there are a few that I am aware of. I know on my fight list I see maybe 3 or 4 depending on the day. Several have over 1700. I know there are 28 people in my clan of a higher level than me, so I don't know if they have full clan or not. Oh, and I have seen someone with 1999 clan, and someone with 2000 clan. Not sure how that worked out.
would be interesting to see how facebook would fare against myspace. facebook has higher levels but myspace has the highest level(and hes a brick wall)