List of 399 registered instances:
mast.marzillier.net
social.sixdegreesofohio.com
social.autonomy.earth
soc.c11um.de
mastodon.phundrak.com
mastodon.friendnet.eu
unredacted.social
spreebits.de
mastodon.kug.is
mastodon-dev.stevex.online
schraepler.de
mstdn.doern.tech
miltodon.social
guerrill.art
talk.balfolk.social
knse.net
social.media-techport.de
gnurfl.de
mastodon.dsss.space
swedishmastodon.social
social.k1024.de
ruz.social
mastodon.helvetet.eu
burnout.cafe
mastodon.une.fi
frinx.online
mastodon.malmoe.social
social.adlerweb.info
social.archworks.co
jasdemi.com
partyparrot.social
mastodon.loss.com.de
mstdn.jklmno.org
mastodon.joschlies.nohost.me
fedineko.org
m.flaem.ing
bytepark.social
lab.wheelsbot.dev
astroposting.de
activityocean.org
mastodon.zypper.net
fedispace.de
fedi.bcna.de
social.peregrinor.net
mastodon.trabus322.eu
space.jeroenvd.nl
sharkey.coffeeandtrains.de
public.brothertec.eu
k2pk.com
mastodon.saarland.social
mstdn.org
mastodon.dnns.icu
stpauli.social
atergens.com
mastodon.derg.nz
unseen-university.social
mastodon.liersch.it
f.dresden.network
firefish.crazy-to-bike.de
skyland.social
social.cybertalk.io
social.beachcom.org
social.retronerd.at
mast.lukeog.com
mastodon.bstly.de
fedihub.de
masto.versagt.wien
mast.flups.familyds.org
fastani.me
hauntshadesocial.nl
whatisthat.xyz
maztodon.se
sharkey.nospy.net
mastodon.mrtoto.de
social.techniverse.net
mastodon.wivodaim.net
m.mirv.top
connect.braydmedia.de
mas.x64.onl
sns.onjann.club
social.alpacaverse.games
notwork.in
schumacher.social
social.blazma.st
social.stefanberger.net
soc.cluboftone.com
observatory.cyber.harvard.edu
brettspiel.space
dol.social
mstdn.dru5k1.io
social.krserv.de
ratingen.social
is-likely.gay
mastodon.rzgierskopp.de
mstdn.sekbaer.de
bb5.social
mas.todon.de
mastodon.mynet.one
m.freq.io
social-potsdam.space
social.glisco.de
mastodon.gramschladen.de
thomasjpr.social
her-mann.de
mastodon.baderpetrick.de
social.grafschaft-aw.de
borg.social
pink-unicorn.club
m.heine.xyz
devellight.space
noto.social
sipstea.town
mastodon.moestel.eu
social.k2pk.com
zeebo.social
social-pflege.de
fruef.social
masto.budgie.lol
mastodon.mrak.at
mastodon.projetretro.io
masto.allerlei.it
swissodon.ch
mastodon.eskimo.com
mastodon.ozioso.online
mastodon.magnor.ovh
mastodon.hausofhomeaux.ca
social.asgardius.company
social.cooltux.net
mastodon.alphapuggle.dev
mastodon.livingonlinenow.com
mastodon.bruckner.email
racoon.social
mstdn.mv2k.com
social.championpictures.at
masto.baranovski.cloud
m.lonet.org
mastodon.zapfmeister.net
eva.cosplaytweet.com
firefish.fediverse.live
apotheke.social
troet.witte-nyumbani.de
fediverse.hybridlehrer.de
social.ceod.net
blog.davidmckeitch.com
key.by0.tech
social.msaood.com
mastdn.coffeehack.org
mstdn.fan
mastodon.itwichtel.de
17th.me
m.pilz.foo
masto.kurohana.me
tacheles.social
social.macer.life
social.eggipedia.de
social.rand0m.fail
fedi.timka.win
social.khaus.io
mastdn.io
buckaroo.city
fed.crimsh.com
mastodon.nordic.online
misskey.dream-universe.org
mastodon.jonasled.de
x.good.news
flauschbar.thoshiswelt.de
mastodon.gemo.social
penguicon.social
mastodontech.de
masto2.100flowers.tech
mstdn.jmrp.io
shout.3xd.eu
otaku.1337.blue
mastodon.kmu-angebote.ch
mastodon.dev-null.rocks
social.anno79.de
genista.osrx.chat
social.klein.ruhr
social.zerojay.com
mastodon.mapf.net
social.amichan.de
social.galih.me
social.vleij.com
social.yussuv.com
mastodon.kuenet.ch
talk.mls20.de
netzverpetzer.de
social.michels.xyz
hacks.fi
yapmi.net
mastodon.mariustimmer.de
leipzig.town
fediverse.live
tranvender.site
inthedeltawaves.social
kupione.click
bayerwald.social
mastodon.irridium.de
social.stezen.de
frawas.de
mast.internal.nullreference.io
re.lire.im
mastodon.dsdrive.fr
social.eubf.net
social.wokurka.net
social.merk.ac
misskey.eskimo.com
nautical.social
bremen.digital
mastodon.rprivat.eu
social.beaware.live
sharkeyspace.de
mastodon.solvality.com
social.spicysources.de
mstdn.kielo.me
social.greatvoid.org
social.xyntion.consulting
social.la-scic.fr
mastodon.1337.blue
toot.houbahouba.de
c64.social
techtett.de
mastdn.communisme-informel.zone
mastodon.kaschemme701.com
schaumburg.social
mastodon.blocki.net
catswords.social
mastodon.koch-server.de
mastodon.forty-two.sh
mastodon.naugrim.org
mastodon.greilach.dev
test.mastodon.makerforce.io
social.sp-codes.de
mastodon.maechler.cloud
status.pointless.one
mastodon.jhcooke.com
mastopouet.fr
social.rrrr.wtf
cosplaytweet.com
plusi.moe
mstdn.budgie.lol
mastodon.wappler.systems
social.rsl.gg
firefish.nesohub.org
social.pericles.hu
mastodon.1up2down.social
eva00.cosplaytweet.com
ciechom.nohost.me
mastodon.rh-social.org
schnauzer.cafe
troetmund.de
social.digital-artifacts.net
goingdark.social
social.appbakery.ee
mooose.org
collins-corner.cc
mastodon.enitin.xyz
social.kyzune.com
mastodon.bayern
misskey.bootjp.me
club.dd5aa.de
social.itwien.net
social.zentonic.org
fed.interfree.ca
friendica.collectifdhun.ovh
mastodon.myocci.social
mastodon.calitabby.net
birdbox.party
ciechom.eu
drip_drip_drip.activityocean.org
soziale.cloud
justabit.social
troete.rechenkugel.de
linksextrem.ist
vhs.social
opencoaster.net
social.suchtbasis.de
mastodon.pixadon.ch
social.kalterwinter.info
social.trackside.blog
social.schnitzler.one
cailincat.cloud
glitch.sekbaer.de
mstdn.canarylabs.eu
social.marzillier.net
mastodon.daponline.com
social.xnet.place
mastodon.thecrimsontint.com
mstdn.business
social.hostnetwork.xyz
sachsen-medien.social
mastodon.flups.familyds.org
nochiiverse.eu
social.flashz.directory
sueden.social
shark.datenkastl.de
hi.fabis.cafe
vaughan.social
afterspace.rocks
fedi.abmgrt.dev
social.misk.cf
kitty.community
troet.burg-halle.de
ramblings.social
qicx.net
thohme.de
mastodon.nextcraft.link
soc.intxiv.io
ottweiler.social
social.crablab.uk
social.vermona.com
mastodon.scientiam.org
toot.wiai.de
social.insider-it.de
fediverse.serialexperiments.club
firefish.nospy.net
mastodon.jabbxi.de
mastodon.wananavuoutfitters.com
mastodon.adtension.com
plaudern.duckdns.org
masto.uc-netcorsoft.de
md.jott-emm.social
pfalz.social
sozial.roter-kreis.de
fedi.latenightpopcorn.com
disobey.net
toot.brumm.family
social.undeadnetwork.de
mastodon.fonsos.com
privacysafe.social
social.domaincrawler.com
elbmatsch.de
mastodon.deathbybandaid.net
mastodon.darkness.services
social.noriakisana.dev
social.iamernie.ca
social.minecodes.de
social.onlythe.net
mastodon.olivernitsche.synology.me
mastodon.hostnetwork.xyz
mastodon.deepspace.cafe
dresden.network
social.rooty.fr
sidestore.social
watzmann.social
toot.zerojay.com
stay.woke.institute
toot.againstallodds.games
upload.chat
privacyofficers.social
mastodon.gaias.social
mstdn.fun.systems
mrrp.chimmie.k.vu
strangeminds.social
social.dvdr.download
fedi.social
homo.1919810.space
flipboard.social
social.breisgaucave.de
fursona.party
burningboard.net
social.main-angler.de
falkensee.social
liberareto.nesohub.org
mastodon.jamidisi-edu.de
mastodon.mcb-it.de
mastodonian.org
edafe.social
mastodon.cyberreality.org
ruby.good.news
mastodon.terpotiz.net
social.sebastian-neu.de
mastodon.digilol.net
social.13-dx.de
runbsd.duckdns.org
mastodon.georgschilling.de
netcup.social
m.deepspace.cafe
franken.social
mastodon.tgo.social
mastodon.greatvoid.org
glegle.party
ferals-on.top
pleroma.7seven.cloud
pleroma.gruenelin.de
fediblock.24-7.ro
station.y-space.de
akkoma.alster.space
fediblock.lol
waifus.biz
social.mdosch.de
soc.cluboftone.com
declin.eu
fedi.kooosh.de
social.otsuka.haus
social.kyzune.com
social.elstabloserver.de
social.vengeful.eu
fedi.u2p.net