List of 529 registered instances:
mastodon.rprivat.eu
mastodon.neatobuilds.com
mstdn.fan
plusi.moe
dol.social
gampcc.online
social.ceod.net
kittie.gay
vhs.social
masto.versagt.wien
whatisthat.xyz
mastodon.forty-two.sh
social.amichan.de
bytepark.social
schraepler.de
fedi.eisenbergs.de
social.moltenaether.com
mastodon.cemunz.de
disobey.net
fedi.social
mastodon.myocci.social
social.autonomy.earth
social.wokurka.net
mastodon.dsss.space
mastodon.magnor.ovh
ostkind.social
drip_drip_drip.activityocean.org
ciechom.nohost.me
mastodon.luseho.com
key.by0.tech
misskey.bootjp.me
mastodon.argentwolf.org
mast.f0ck.org
social.hostpath.de
mielke.social
soc.intxiv.io
k2pk.com
mrrp.chimmie.k.vu
mastodon.rzgierskopp.de
cailincat.cloud
social.alpacaverse.games
onlinegemein.de
social.zerojay.com
gay.amsterdam
social.hostnetwork.xyz
social.digital-artifacts.net
mast.marzillier.net
m.hu-social.de
social.sp-codes.de
mstdn.mv2k.net
toot.redundantnoise.eu
swedishmastodon.social
noto.social
mastodon.itwichtel.de
club.dd5aa.de
messydata.de
empuriabrava-newsletter.com
mastodon.denike.io
mstdn.jmrp.io
fediverse.live
penguicon.social
troete.rechenkugel.de
m.heine.xyz
mastodon.greilach.dev
social.dvdr.download
kitty.community
fed.crimsh.com
mastodon.kmu-angebote.ch
cosplaytweet.com
social.rand0m.fail
talk.balfolk.social
mastodon.kug.is
mastodon.derg.nz
connect.braydmedia.de
mastdn.communisme-informel.zone
mastodon.wananavuoutfitters.com
matrix.rocks
mastodon.enitin.xyz
schumacher.social
bitflipp.social
freyjas.org
scrunkly.cat
kupione.click
masto.kurohana.me
toot.wiai.de
toot.zerojay.com
mastodon.mariustimmer.de
mstdn.dru5k1.io
eva00.cosplaytweet.com
social.sixdegreesofohio.com
17th.me
social.vermona.com
social.vleij.com
mastodon.weindl.biz
social.krserv.de
acn.social
devellight.space
stpauli.social
fedi.latenightpopcorn.com
social.cooltux.net
mastodon.nextcraft.link
yapmi.net
social.retronerd.at
mstdn.fun.systems
flauschbar.thoshiswelt.de
piraten-partei.social
afterspace.rocks
sikotter.hikamer.f5.si
spreebits.de
fedi.abmgrt.dev
troet.burg-halle.de
social.minecodes.de
mastodon.maescool.be
ciechom.eu
rlp.social
glitch.sekbaer.de
masto2.100flowers.tech
masto.baranovski.cloud
social.trackside.blog
m.deepspace.cafe
bb5.social
leipzig.town
mastodon.stormcrest.org
mastodon.fonsos.com
pfalz.social
livingevil.de
mastodon.hu-social.de
mastodon.solvality.com
mastodon.gefrickel.nohost.me
unsocial.morbia.org
mastopouet.fr
soc.c11um.de
technikpunk.net
masto.uc-netcorsoft.de
talk.mls20.de
notwork.in
fedi.bcna.de
mastodon.jabbxi.de
firefish.crazy-to-bike.de
jsp.haus
masto.tstoll.me
mastodon.dev-null.rocks
skyland.social
social.rooty.fr
sidestore.social
goingdark.social
mastodon.terpotiz.net
hollow.raccoon.quest
toot.brumm.family
hacks.fi
jaaber.ch
mstdn.budgie.lol
team.dumango.com
apotheke.social
sharkey.wheelsbot.dev
batchats.net
mastodon.projetretro.io
social.greatvoid.org
mastodon.darkness.services
hauntshadesocial.nl
www.mediacy.net
ruz.social
mastodon.1up2down.social
gnurfl.de
mastodon.e4b4.eu
social.zcore.org
mastodon.nerfwrecking.de
jasdemi.com
masto.jann.dev
social.netguide.io
social.beaware.live
frawas.de
mastodontech.de
Moep.social
mastodon.bandrate.org
social.xnet.place
crafter.social
dark.morbia.org
is-likely.gay
buckaroo.city
mastodon.adtension.com
social.xyntion.consulting
observatory.cyber.harvard.edu
mastodon.kuenet.ch
social.kalterwinter.info
mastodon.deathbybandaid.net
mastodon.jonasled.de
mastodon.lordoftheplex.com
bremen.digital
mastodon.olivernitsche.synology.me
mastodon.kansaigaijin.com
soziale.cloud
mas.x64.onl
hi.fabis.cafe
social.yussuv.com
mastodon.psykey.dev
social.merk.ac
mastodon.gaias.social
mastodon.cyberreality.org
social.relula.nl
social-pflege.de
made-online.net
mastodon.mapf.net
mastodon.ferox.cc
social.anno79.de
f.dresden.network
unredacted.social
social.glisco.de
schaumburg.social
fedi.tyil.nl
discover.holm.community
netcup.social
social.beachcom.org
social.suchtbasis.de
rel.re
mastodon.fediverse.dedyn.io
tacheles.social
i-love.vodka
social.13-dx.de
ramblings.social
public.brothertec.eu
her-mann.de
fedi.timka.win
firefish.fediverse.live
social.la-scic.fr
social.haug.systems
nochiiverse.eu
social.media-techport.de
mastodon.zypper.net
mstdn.azrak.io
maztodon.se
x.good.news
social.damacloud.duckdns.org
mastodon.maechler.cloud
sachsen-medien.social
social.myexp.de
mast.internal.nullreference.io
social.pericles.hu
md.jott-emm.social
genista.osrx.chat
social.redundantnoise.eu
strangeminds.social
inthedeltawaves.social
social-potsdam.space
mast.flups.familyds.org
mstdn.jklmno.org
stay.woke.institute
eva.cosplaytweet.com
partyparrot.social
otaku.1337.blue
mastodon.dsdrive.fr
sharkey.daddelwerk.net
mstdn.radi0.cc
plaudern.duckdns.org
catswords.social
re.lire.im
fediverse.serialexperiments.club
social.k2pk.com
social.onlythe.net
ratingen.social
mastodon.trabus322.eu
misskey.dream-universe.org
social.redflag.ps
social.lex-blog.eu
mastodon.baderpetrick.de
mast.lukeog.com
mastodon.alphapuggle.dev
sharkeyspace.de
social.khaus.io
social.eggipedia.de
mastodon.calitabby.net
tusk.macer.life
social.itwien.net
fediverse-rocks.de
privacysafe.social
mastodon.jhcooke.com
lab.wheelsbot.dev
vaughan.social
mastodon.deepspace.cafe
brettspiel.space
social.archworks.co
liberareto.nesohub.org
miltodon.social
mastodon.hausofhomeaux.ca
drupal.community
mastodon.wormhole.eu
mastodon.koch-server.de
social.peregrinor.net
mastodon.une.fi
sharkey.pnyhf.eu
upload.chat
social.livingtrust.store
don.origofraktale.de
social.marzillier.net
mastodon.mrtoto.de
unseen-university.social
social.breadcrumbs.info
mastodon.h4x0.red
mastodon.thecrimsontint.com
social.misk.cf
fedispace.de
masto.allerlei.it
activityocean.org
social.row-social.de
mastodonian.org
mastodon.loss.com.de
mastodon.flups.familyds.org
mstdn.canarylabs.eu
mastodon.bstly.de
mastodon.greatvoid.org
mastodon.daponline.com
mastodon.hostnetwork.xyz
thohme.de
friendica.collectifdhun.ovh
schnauzer.cafe
social.vir.group
social.msaood.com
social.k1024.de
social.asgardius.company
fruef.social
social.eubf.net
swissodon.ch
pink-unicorn.club
sns.onjann.club
social.championpictures.at
misskey.eskimo.com
social.terminaltilt.com
mastodon.expect.ovh
social.crablab.uk
mooose.org
social.openlab-saar.de
mastodon.jamidisi-edu.de
sharkey.coffeeandtrains.de
social.appbakery.ee
mstdn.business
homo.1919810.space
mastodon.saarland.social
zeebo.social
social.cybertalk.io
social.iamernie.ca
blog.dumango.com
mastodon.wivodaim.net
fawkes.rocks
mastodon.eskimo.com
mastodon.helvetet.eu
mastodon.1337.blue
racoon.social
m.mirv.top
reddawn247.se
fedi.frinx.network
wendland.elbe.social
social.undeadnetwork.de
m.lonet.org
mastodon.livingonlinenow.com
falkensee.social
otter.nexus
soc.cluboftone.com
atergens.com
mastodon.naugrim.org
fediverse.hybridlehrer.de
mstdn.org
sharkey.nospy.net
guerrill.art
social.schnitzler.one
masto.budgie.lol
social.bobjargus.net
social.flashz.directory
meerjungfrauengrotte.de
ja.social
mstdn.kielo.me
astroposting.de
social.spicysources.de
ls-freunde.d-empires.de
qicx.net
flipboard.social
masto.i-bobs.com
social.stage.anoxinon.de
thomasjpr.social
social.michels.xyz
mastodon.glombit.de
losodokodon.bandrate.org
mastodon.bayern
dresden.network
mas.todon.de
sk.milow.me
privacyofficers.social
fursona.party
collins-corner.cc
olsberg.social
ravarkon.work.gd
mastdn.io
burningboard.net
blog.davidmckeitch.com
opencoaster.net
social.rsl.gg
mastodon.kaschemme701.com
mastodon.circlewithadot.net
mastodon.moestel.eu
masto.namwen.me
space.jeroenvd.nl
mastodon.friendnet.eu
relaxedgamers.de
tranvender.site
toot.againstallodds.games
social.weiznich.de
bayerwald.social
mastodon-dev.stevex.online
social.noriakisana.dev
social.detektor.fm
mastodon.rh-social.org
mastodon.girolab.foo
mastodon.mynet.one
mstdn.doern.tech
justabit.social
mastodon.bruckner.email
mastdn.coffeehack.org
mastodon.malmoe.social
borg.social
2k2k.org
knse.net
social.stezen.de
mastodon.liersch.it
social.insider-it.de
mastodon.anura.team
mastodon.georgschilling.de
fedi.welten-wanderin.de
matriochka.intxiv.ru.com
netzverpetzer.de
social.nrwonline.org
social.witez.net
ottweiler.social
social.blazma.st
void.crypt0n.org
social.anoxinon.de
fedineko.org
mastodon.dnns.icu
fed.interfree.ca
mastodon.digilol.net
social.rrrr.wtf
fedihub.de
social.gnuweeb.org
social.penzberg.me
mastodon.joschlies.nohost.me
test.mastodon.makerforce.io
sipstea.town
cyangant.dedyn.io
mastodon.gramschladen.de
m.freq.io
mastodon.scientiam.org
mastodon.irridium.de
mastodon.nordic.online
franken.social
firefish.nesohub.org
toot.houbahouba.de
social.stefanberger.net
fedi.smith.geek.nz
mastodon.gemo.social
hoax.social
mastodon.pixadon.ch
social.kyzune.com
mastodon.ozioso.online
ruby.good.news
fastani.me
nautical.social
birdbox.party
firefish.nospy.net
social.zauchen.io
social.macer.life
social.server17.net
mastodon.zapfmeister.net
social.grafschaft-aw.de
social.heizerdesk.workers.dev
social.klein.ruhr
shout.3xd.eu
social.fwcr.de
m.pilz.foo
mastodon.awit.at
mastodon.tgo.social
social.domaincrawler.com
burnout.cafe
social.sebastian-neu.de
sueden.social
runbsd.duckdns.org
m.azis.pt
social.main-angler.de
troetmund.de
status.pointless.one
frinx.online
mastodon.eisenbergs.de
mastodon.server-heimnetz-scharfenbrueck.ipv64.net
social.adlerweb.info
mastodon.phundrak.com
troet.witte-nyumbani.de
mstdn.sekbaer.de
mastodon.netconnect.icu
social.mdosch.de
pleroma.gruenelin.de
ferals-on.top
social.vengeful.eu
clew.live
soc.femme.cat
www.paperbunny.asia
fedi.pathsecho.quest
pl.ametic.ovh
social.retroedge.tech
social.kyzune.com
dyli.moe
pleroma.7seven.cloud
social.eldshort.de
fediblock.lol
yakup.karaman.app
social.otsuka.haus
snac.wheelsbot.dev
glegle.party
fedi.bryie.com
elektrine.ngrok.app
fedi.u2p.net
station.y-space.de
reactionarytenderqueer.minecraftnoob.com
ebadf.port0.org
waifus.biz
declin.eu
social.elstabloserver.de
akkoma.alster.space
fedi.kooosh.de
fediblock.24-7.ro
channermemes.baselinux.net
soc.cluboftone.com
clew.lol