Im not sure but...
try with this
ESF|The Learning zone [Joorir]
199.71.234.2:27018
ESF | Blitzkrit by ~#Revan#~
207.210.239.110:27016
ESForces.Can FFA
96.49.184.247:27022
ESFORCES.LT # Free Fight [24/7]
77.241.199.83:27015
ESForces.lt DUEL [24/7]
77.241.199.84:27015
Pass: NoNoobs
??????? [Argentina]
200.43.192.112:27019
ESFORCES.LT # ECX Arena [24/7]
77.241.194.92:27016
[ESF] by Extremeldm.com
200.58.101.18:27040
[LocalStrike] ESF Public Server
200.43.192.126:27027
Servers/Servidores ------------------------STEAM
ESF Server Dallas, TX #2 - Team DeathMatch
207.210.252.133:27015
ESF 1.2.3 <Chicago>
68.232.172.101:27015
Appelernte [Server: 4Netplayers]
195.4.106.191:27015
Pass: ???????
EPD-clan.it - Esf Team fight 24/7
95.143.38.24:27015
ESF 1.2.3 [Duel] <NewYork>
66.55.137.182:27015
ESF + ECX AF CUSTOM CHICAGO
68.232.164.20:27015
ESF 1.2.3 <London>
217.163.27.151:27015
ESF 1.2.3 [Duel] <Copenhagen>
173.199.69.106:27015
Pass: ??????
ESForces.com #3 TS: ts.corona-networx.com
188.40.15.249:27018