http://tracker.flashtorrents.org:6969/announce

http://tracker.dutchtracking.nl/announce

http://tracker.yoshi210.com:6969/announce

http://tracker.tiny-vps.com:6969/announce

http://www.wareztorrent.com/announce

http://tracker.filetracker.pl:8089/announce

http://tracker.ex.ua/announce

http://tracker.grepler.com:6969/announce

http://retracker.gorcomnet.ru/announce

http://retracker.krs-ix.ru/announce

http://open.lolicon.eu:7777/announce

http://185.5.97.139:8089/announce

http://91.217.91.21:3218/announce

http://46.4.109.148:6969/announce

http://51.254.244.161:6969/announce

http://81.200.2.231/announce

http://87.248.186.252:8080/announce

http://188.165.253.109:1337/announce

http://tracker.opentrackr.org:1337/announce

http://p4p.arenabg.com:1337/announce

http://tracker.baravik.org:6970/announce

http://74.82.52.209:6969/announce

http://109.121.134.121:1337/announce

http://178.33.73.26:2710/announce

http://210.244.71.25:6969/announce

http://213.159.215.198:6970/announce

http://178.175.143.27/announce

http://atrack.pow7.com/announce

http://mgtracker.org:2710/announce

http://open.touki.ru/announce.php

http://p4p.arenabg.ch:1337/announce

http://pow7.com/announce

http://pow7.com:80/announce

http://retracker.krs-ix.ru:80/announce

http://secure.pow7.com/announce

http://t1.pow7.com/announce

http://t2.pow7.com/announce

http://torrentsmd.com:8080/announce

http://tracker.bittor.pw:1337/announce

http://tracker.dutchtracking.com/announce

http://tracker.dutchtracking.com:80/announce

http://tracker.dutchtracking.nl:80/announce

http://tracker.edoardocolombo.eu:6969/announce

http://tracker.ex.ua:80/announce

http://tracker.tfile.me/announce

http://tracker1.wasabii.com.tw:6969/announce

http://tracker2.wasabii.com.tw:6969/announce

http://www.wareztorrent.com:80/announce

http://tracker.flashtorrents.org:6969/announce

http://tracker.aletorrenty.pl:2710/announce

udp://tracker.aletorrenty.pl:2710/announce

udp://tracker.flashtorrents.org:6969/announce

udp://explodie.org:6969/announce

udp://9.rarbg.com:2730/announce

udp://tracker.opentrackr.org:1337/announce

udp://tracker.zer0day.to:1337/announce
Best working torrent tracker list as at 2015 May:

udp://exodus.desync.com:6969/announce
udp://coppersurfer.tk:6969/announce
udp://9.rarbg.me:2710/announce
http://tracker.best-torrents.net:6969/announce
http://mgtracker.org:2710/announce
http://announce.torrentsmd.com:6969/announce
http://bt.careland.com.cn:6969/announce
http://exodus.desync.com/announce
http://pow7.com/announce

List of other torrent trackers:
These trackers might work sometimes. You can try adding them too.

http://9.rarbg.com:2710/announce
http://announce.torrentsmd.com:6969/announce
http://bt.careland.com.cn:6969/announce
http://explodie.org:6969/announce
http://mgtracker.org:2710/announce
http://tracker.best-torrents.net:6969/announce
http://tracker.tfile.me/announce
http://tracker.torrenty.org:6969/announce
http://tracker1.wasabii.com.tw:6969/announce
udp://9.rarbg.com:2710/announce
udp://9.rarbg.me:2710/announce
udp://coppersurfer.tk:6969/announce
udp://exodus.desync.com:6969/announce
udp://open.demonii.com:1337/announce
udp://tracker.btzoo.eu:80/announce
udp://tracker.istole.it:80/announce
udp://tracker.openbittorrent.com:80/announce
udp://tracker.prq.to/announce
udp://tracker.publicbt.com:80/announce

Other Working Torrent Trackers list:

http://tracker.yify-torrents.com/announce
udp://tracker.yify-torrents.com/announce
http://retracker.kld.ru:2710/announce
udp://tracker.1337x.org:80/announce
http://exodus.desync.com/announce
http://pow7.com/announce
http://tracker.novalayer.org:6969/announce
udp://tracker.openbittorrent.com:80/announce
http://193.107.16.156:2710/announce
http://cpleft.com:2710/announce
http://retracker.hotplug.ru:2710/announce
http://retracker.kld.ru/announce
http://tracker.coppersurfer.tk:6969/announce
http://inferno.demonoid.me:3414/announce
http://announce.torrentsmd.com:6969/announce
udp://9.rarbg.com:2710/announce
udp://tracker.yify-torrents.com/announce
udp://coppersurfer.tk:6969/announce
udp://exodus.desync.com:6969/announce
udp://open.demonii.com:1337/announce
udp://tracker.istole.it:80/announce
udp://tracker.openbittorrent.com:80/announce
udp://tracker.prq.to/announce
udp://tracker.publicbt.com:80/announce
http://exodus.desync.com/announce
http://ipv4.tracker.harry.lu/announce
http://tracker.torrentbay.to:6969/announce
udp://11.rarbg.com/announce
udp://tracker.1337x.org:80/announce
udp://tracker.istole.it:80/announce
udp://tracker.ccc.de:80/announce
udp://fr33dom.h33t.com:3310/announce
udp://tracker.openbittorrent.com:80/announce
udp://tracker.publicbt.com:80/announce