net.ru
org.ru
pp.ru

Это ещё не всё, вот ещё нормальные 3 уровня:
CO.CC
Da.Ru
Tut.Ru
Eu.Org

А теперь представители которые делают редирект
Dot.tk - *.tk
Co.nr - *.co.nr
JoyNic.Ru - *.us.tt *.uk.tt *.co.uk.tt *.me.uk.tt *.org.uk.tt *.ca.tt *.au.tt *.com.au.tt *.eu.tt *.de.tt *.at.tt *.co.at.tt *.ch.tt *.fr.tt *.nl.tt *.it.tt *.es.tt *.be.tt
SmartDots.Ru - *.net.tc *.ru.tc *.eu.tc *.us.tc *.uk.tc *.co.uk.tc *.me.uk.tc *.org.uk.tc *.pro.tc *.shop.tc *.edu.tc *.au.tc *.com.au.tc *.de.tc *.at.tc *.co.at.tc *.ch.tc *.it.tc *.es.tc *.se.tc *.dk.tc *.be.tc *.no.tc *.int.tc *.pl.tc *.bg.tc *.cz.tc *.hu.tc *.ie.tc *.mx.tc *.br.tc *.hk.tc *.kr.tc *.th.tc *.ph.tc *.ua.tc
Zor.Org - *.kickme.to *.zor.org *.128bit.at *.16bit.at *.256bit.at *.32bit.at *.512bit.at *.64bit.at *.8bit.at *.again.at *.allday.at *.alone.at *.altair.at *.american.at *.amiga500.at *.ammo.at *.amplifier.at *.amstrad.at *.anglican.at *.angry.at *.around.at *.arrange.at *.australian.at*.baptist.at *.basque.at *.battle.at *.bazooka.at *.berber.at *.blackhole.at *.booze.at *.bosnian.at *.brainiac.at *.brazilian.at *.bummer.at *.c-64.at *.catalonian.at *.catholic.at *.chapel.at *.christiandemocrats.at *.christiandemocrats.at *.cname.at *.colors.at *.commodore.at *.commodore64.at *.communists.at *.conservatives.at *.conspiracy.at *.cooldude.at *.croatian.at *.cuteboy.at *.dancemix.at *.danceparty.at *.danish.at *.dealing.at *.deep.at *.democrats.at *.divxlinks.at *.divxmovies.at *.divxstuff.at *.dizzy.at *.dork.at *.dutch.at *.dvdlinks.at *.dvdmovies.at *.dvdstuff.at *.emulators.at *.end.at *.english.at *.eniac.at *.error403.at *.error404.at *.evangelism.at *.exhibitionist.at *.faith.at *.fight.at *.finish.at *.finnish.at *.forward.at *.freebie.at *.freemp3.at *.french.at *.graduatejobs.at *.greenparty.at *.grunge.at *.hacked.at *.hang.at *.hangup.at *.hide.at *.hindu.at *.htmlpage.at *.hungarian.at *.icelandic.at *.independents.at *.invisible.at *.japanese.at *.jive.at *.kickass.at *.kickme.to *.kindergarden.at *.kurd.at *.labour.at *.leech.at *.liberals.at *.linuxserver.at *.liqour.at *.lookup.at *.maxed.at *.meltdown.at *.methodist.at *.microcomputers.at *.mingle.at *.mirror.at *.moan.at *.mormons.at *.musicmix.at *.nationalists.at *.nerds.at *.neuromancer.at *.newbie.at *.nicepage.at *.ninja.at *.norwegian.at *.ntserver.at *.paint.at *.palestinian.at *.phoneme.at *.phreaking.at *.polish.at *.popmusic.at *.portuguese.at *.powermac.at *.processor.at *.prospects.at *.protestant.at *.rapmusic.at *.raveparty.at *.reachme.at *.reboot.at *.relaxed.at *.republicans.at *.researcher.at *.reset.at *.resolve.at *.retrocomputers.at *.rockparty.at *.rollover.at *.rough.at *.rumble.at *.russian.at *.scared.at *.seikh.at *.serbian.at *.short.as *.silence.at *.simpler.at *.sinclair.at *.slowdown.at *.socialists.at *.spanish.at *.split.at *.stand.at *.stoned.at *.stumble.at *.supercomputer.at *.swedish.at *.synagogue.at *.syntax.at *.syntaxerror.at *.techie.at *.temple.at *.thinkbig.at *.thirsty.at *.throw.at *.toplist.at *.trekkie.at *.trouble.at *.turkish.at *.unexplained.at *.unixserver.at *.vegetarian.at *.venture.at *.verycool.at *.vic-20.at *.viewing.at *.vintagecomputers.at *.virii.at *.vodka.at *.wannabe.at *.webpagedesign.at *.wheels.at *.whisper.at *.whiz.at *.wonderful.at *.zx80.at *.zx81.at *.zxspectrum.at *.lovez.it *.needz.it *.craves.it *.means.it *.digs.it *.adores.it *.hills.it *.is-groovin.it *.is-chillin.it *.drives.it *.reads.it *.surfs.it *.swims.it *.playz.it *.singz.it *.dances.it *.has.it *.does.it *.knows.it *.shows.it *.rules.it *.makes.it *.says.it *.owns.it