TG clan's TAM server (mostly this one, but the level of player sometimes are very very high. One Fella the other day had something like 10 headshots in a grendel match, above 100 in damage points - which equates to few thousand damage done)
PST clan's TAM server (quite like this one, level is a tad lower that TG, and the ressurect adrenaline combo is nice and adds tactical play)
UIE clan's TAM server (Irish TAM server, seldom people there, but have had some very late night sessions ~ 3-4 in the morning)
edit: will add the IP's later tonight
TG = The GIfted clan
PST = Parasite Lost
UIE = United Irish ... err dunno what the E stands for