NA - 8 years FFA/UM/Alliance/EC
LAE - on and off since '03 or so FFA
renegades - couple years alliance
paradigm - 2.5 years, and then another year later on both alliance
UCN - 1 set back on echelon
rage - about a year alliance
omega - about a year alliance
ska - a few sets alliance
sanct - a few sets alliance
sol - about a year alliance
tie - about a year alliance
tics - a couple sets alliance
saints - one set alliance
thunderdragons - one set alliance
RD - team server a set or two
lcn - can't remember
monks - a few sets, alliance and team
elysium - ffa
hells saints - ffa or team i believe
valks - limited
ninja - current FFA
sysoolae - couple sets FFA
atlantis - 1 set FFA
dwar - 1 set FFA
moral decay - a few sets
fallen angels - pretty sure i was there
Mphoenix - a set before i was kicked ;)
justice - about a year
teamhunters - about a year
carpe cerevisi - a set here and there FFA
MKR - team server a set
KOTG - FFA a set or two
Mercs - FFA my first set
killers elite - ffa a couple set

not all of the above was under my llaar name :P i'm sure i missed several clans too in that list, cant remember.