List of 471 registered instances:
social.noriakisana.dev
m.pilz.foo
skyland.social
mastodon.circlewithadot.net
mastodon.irridium.de
dark.morbia.org
social.itwien.net
mastodon.scientiam.org
messydata.de
whatisthat.xyz
mastodon.malmoe.social
social.msaood.com
mastodon.bruckner.email
schraepler.de
mastodon.stormcrest.org
friendica.collectifdhun.ovh
mastodon.moestel.eu
m.hu-social.de
mastodon.helvetet.eu
mastopouet.fr
social.k1024.de
social.eubf.net
ciechom.eu
social.xyntion.consulting
mastodon.wormhole.eu
troetmund.de
mstdn.fan
mastodon.thecrimsontint.com
mastodon.trabus322.eu
mastodon.myocci.social
mastodon.cyberreality.org
social.rrrr.wtf
blog.dumango.com
social.undeadnetwork.de
brettspiel.space
privacysafe.social
ravarkon.work.gd
social.weiznich.de
team.dumango.com
mastodon.adtension.com
frinx.online
masto.tstoll.me
observatory.cyber.harvard.edu
watzmann.social
social-pflege.de
talk.mls20.de
zeebo.social
m.mirv.top
afterspace.rocks
mastodon.jonasled.de
mastodon.saarland.social
social.vermona.com
mastodon.derg.nz
mastodon.baderpetrick.de
mastodon.naugrim.org
fedi.frinx.network
mastdn.io
apotheke.social
schumacher.social
strangeminds.social
firefish.crazy-to-bike.de
misskey.bootjp.me
mastodon.jhcooke.com
social.domaincrawler.com
firefish.fediverse.live
soziale.cloud
kupione.click
mastodon.hu-social.de
social.vir.group
inthedeltawaves.social
mastodon.lordoftheplex.com
mastodon.terpotiz.net
misskey.eskimo.com
sipstea.town
ruz.social
talk.balfolk.social
social.wokurka.net
birdbox.party
sueden.social
social.merk.ac
mastodon.maechler.cloud
racoon.social
social-potsdam.space
nochiiverse.eu
netzverpetzer.de
atergens.com
c64.social
social.stezen.de
schaumburg.social
firefish.nesohub.org
mastodon.kmu-angebote.ch
fedi.timka.win
fruef.social
vhs.social
mastodon.mapf.net
mastodon.enitin.xyz
acn.social
mastodon.nordic.online
livingevil.de
soc.intxiv.io
flipboard.social
mastodon.tgo.social
lab.wheelsbot.dev
mstdn.budgie.lol
void.crypt0n.org
social.amichan.de
mstdn.jmrp.io
mastodon.dsdrive.fr
mast.flups.familyds.org
mastodonian.org
masto2.100flowers.tech
linksextrem.ist
troet.burg-halle.de
fediverse-rocks.de
mastodon.rzgierskopp.de
jasdemi.com
bayerwald.social
mastodon.pixadon.ch
m.freq.io
mastodon.kansaigaijin.com
glitch.sekbaer.de
astroposting.de
mastodon.loss.com.de
mastodon.livingonlinenow.com
swissodon.ch
guerrill.art
mastodon.kug.is
social.grafschaft-aw.de
cailincat.cloud
social.autonomy.earth
edafe.social
sharkeyspace.de
rlp.social
m.deepspace.cafe
toot.brumm.family
social.gnuweeb.org
fedi.social
fedi.smith.geek.nz
olsberg.social
mastodon.argentwolf.org
genista.osrx.chat
mastdn.coffeehack.org
mastodon.itwichtel.de
mastodon.fonsos.com
mastodon.maescool.be
mstdn.azrak.io
homo.1919810.space
social.nrwonline.org
mastodon.rh-social.org
toot.zerojay.com
elbmatsch.de
social.klein.ruhr
social.iamernie.ca
mastodon.dnns.icu
social.lex-blog.eu
social.crablab.uk
social.beachcom.org
mastodon.une.fi
toot.houbahouba.de
social.sebastian-neu.de
sidestore.social
social.zentonic.org
sozial.roter-kreis.de
sachsen-medien.social
scrunkly.cat
masto.baranovski.cloud
social.cooltux.net
mstdn.doern.tech
mastodon.mariustimmer.de
pfalz.social
franken.social
notwork.in
fediverse.hybridlehrer.de
mastodon.hausofhomeaux.ca
mastodon.1337.blue
toot.wiai.de
goingdark.social
mastodon.eisenbergs.de
mast.lukeog.com
ratingen.social
masto.versagt.wien
unredacted.social
mastodon.kuenet.ch
fedispace.de
mastodon.rprivat.eu
social.breisgaucave.de
knse.net
social.anno79.de
mastodon.gaias.social
buckaroo.city
mastodon.greatvoid.org
flauschbar.thoshiswelt.de
mastodon.kaschemme701.com
fedi.latenightpopcorn.com
social.penzberg.me
mastodon.luseho.com
masto.kurohana.me
netcup.social
mastodon.phundrak.com
social.hostpath.de
firefish.nospy.net
social.techniverse.net
jaaber.ch
social.eggipedia.de
ottweiler.social
fedi.bcna.de
mastodon.gefrickel.nohost.me
miltodon.social
social.rsl.gg
social.xnet.place
toot.againstallodds.games
www.mediacy.net
kitty.community
social.retronerd.at
mstdn.business
social.la-scic.fr
sharkey.nospy.net
social.blazma.st
mastodon.ozioso.online
soc.c11um.de
stpauli.social
unsocial.morbia.org
otaku.1337.blue
mastodon.cemunz.de
fedi.abmgrt.dev
social.hostnetwork.xyz
leipzig.town
social.schnitzler.one
m.flaem.ing
social.jnpw.net
social.rooty.fr
social.archworks.co
mastodon.wappler.systems
17th.me
mastodon.magnor.ovh
mastodon.jamidisi-edu.de
hauntshadesocial.nl
mrrp.chimmie.k.vu
i-love.vodka
mastodon.wananavuoutfitters.com
technikpunk.net
pink-unicorn.club
key.by0.tech
mastdn.communisme-informel.zone
mastodon.friendnet.eu
mast.marzillier.net
social.insider-it.de
social.k2pk.com
mastodon.hostnetwork.xyz
disobey.net
otter.nexus
social.media-techport.de
fedihub.de
status.pointless.one
devellight.space
gnurfl.de
fedineko.org
eva00.cosplaytweet.com
mastodon.koch-server.de
mastodon.gemo.social
mastodon.mrak.at
social.dvdr.download
drip_drip_drip.activityocean.org
collins-corner.cc
eva.cosplaytweet.com
mastodon.forty-two.sh
connect.braydmedia.de
crafter.social
m.heine.xyz
social.trackside.blog
mastodon.bandrate.org
fed.interfree.ca
mastodon.digilol.net
mstdn.jklmno.org
social.rand0m.fail
social.13-dx.de
ruby.good.news
mstdn.dru5k1.io
blog.davidmckeitch.com
social.khaus.io
mas.todon.de
fastani.me
bb5.social
hacks.fi
opencoaster.net
social.digital-artifacts.net
social.kalterwinter.info
social.kyzune.com
mastodon.mynet.one
mastodon.darkness.services
mastodon.server-heimnetz-scharfenbrueck.ipv64.net
hi.fabis.cafe
penguicon.social
social.sixdegreesofohio.com
mstdn.kielo.me
shout.3xd.eu
mas.x64.onl
social.asgardius.company
dresden.network
social.damacloud.duckdns.org
fediverse.serialexperiments.club
falkensee.social
social.greatvoid.org
social.minecodes.de
tacheles.social
social.onlythe.net
spreebits.de
social.marzillier.net
x.good.news
mastodon.dsss.space
mastodon.olivernitsche.synology.me
mast.internal.nullreference.io
k2pk.com
mastodon.joschlies.nohost.me
social.main-angler.de
unseen-university.social
mastodon.liersch.it
dorm.social
mastodon.flups.familyds.org
plusi.moe
cosplaytweet.com
bytepark.social
2k2k.org
yapmi.net
mstdn.org
mastodon.alphapuggle.dev
liberareto.nesohub.org
nautical.social
mastodon.gramschladen.de
techtett.de
social.netguide.io
sharkey.coffeeandtrains.de
social.detektor.fm
troete.rechenkugel.de
mastodon.mrtoto.de
md.jott-emm.social
stay.woke.institute
social.adlerweb.info
schnauzer.cafe
borg.social
social.macer.life
fediverse.live
mastodon.zapfmeister.net
misskey.dream-universe.org
space.jeroenvd.nl
mastodon.dev-null.rocks
social.beaware.live
fed.crimsh.com
mooose.org
her-mann.de
mastodon.girolab.foo
social.pericles.hu
social.michels.xyz
social.championpictures.at
mastodon.deathbybandaid.net
vaughan.social
public.brothertec.eu
mstdn.canarylabs.eu
social.stefanberger.net
justabit.social
maztodon.se
social.glisco.de
social.misk.cf
f.dresden.network
jsp.haus
troet.witte-nyumbani.de
runbsd.duckdns.org
dol.social
swedishmastodon.social
mastodon.zypper.net
qicx.net
mastodon.bayern
mstdn.fun.systems
thomasjpr.social
mastodon.mcb-it.de
bremen.digital
catswords.social
test.mastodon.makerforce.io
social.cybertalk.io
club.dd5aa.de
mastodon.1up2down.social
plaudern.duckdns.org
mastodon.anura.team
sharkey.wheelsbot.dev
social.krserv.de
social.flashz.directory
mastodon.georgschilling.de
social.galih.me
burningboard.net
masto.budgie.lol
thohme.de
mastodon.wivodaim.net
masto.allerlei.it
mastodon.deepspace.cafe
soc.cluboftone.com
m.azis.pt
Moep.social
mastodon.bstly.de
mastodon.greilach.dev
mastodon.projetretro.io
mastodon.jabbxi.de
social.zerojay.com
fursona.party
ciechom.nohost.me
re.lire.im
mastodon.daponline.com
frawas.de
is-likely.gay
tranvender.site
social.row-social.de
social.alpacaverse.games
onlinegemein.de
privacyofficers.social
social.peregrinor.net
sns.onjann.club
mstdn.sekbaer.de
mastodon.blocki.net
social.appbakery.ee
mastodon.nextcraft.link
masto.uc-netcorsoft.de
social.ceod.net
noto.social
social.sp-codes.de
social.redflag.ps
mastodontech.de
partyparrot.social
social.yussuv.com
mastodon-dev.stevex.online
m.lonet.org
upload.chat
social.spicysources.de
ramblings.social
mastodon.netconnect.icu
mastodon.solvality.com
activityocean.org
social.suchtbasis.de
social.vleij.com
burnout.cafe
mastodon.calitabby.net
mastodon.eskimo.com
social.vengeful.eu
clew.live
social.retroedge.tech
waifus.biz
fedi.u2p.net
station.y-space.de
pleroma.7seven.cloud
elektrine.ngrok.app
ebadf.port0.org
glegle.party
social.kyzune.com
fediblock.24-7.ro
declin.eu
fediblock.lol
fedi.kooosh.de
social.otsuka.haus
fedi.bryie.com
ferals-on.top
social.mdosch.de
reactionarytenderqueer.minecraftnoob.com
www.paperbunny.asia
social.elstabloserver.de
clew.lol
pleroma.gruenelin.de
pl.ametic.ovh
akkoma.alster.space
soc.cluboftone.com
soc.femme.cat
social.eldshort.de
yakup.karaman.app
channermemes.baselinux.net