List of 363 registered instances:
justabit.social
flipboard.social
mastodon.wappler.systems
mstdn.fan
troetmund.de
mastodon.derg.nz
mstdn.fun.systems
mastodon.adtension.com
kitty.community
eva00.cosplaytweet.com
social.vermona.com
mastodon.mynet.one
racoon.social
devellight.space
fedihub.de
17th.me
mastodon.daponline.com
mastodon.georgschilling.de
mastodon.malmoe.social
social.sixdegreesofohio.com
mastodon.olivernitsche.synology.me
mastdn.communisme-informel.zone
homo.1919810.space
mastodon.rprivat.eu
plaudern.duckdns.org
stay.woke.institute
techtett.de
mastodon.irridium.de
mastodon.qsv.ch
mastdn.io
mstdn.org
blog.davidmckeitch.com
social.cooltux.net
fedineko.org
fedi.abmgrt.dev
vaughan.social
social.beaware.live
social.la-scic.fr
social.breisgaucave.de
mastodon.cyberreality.org
mastodon.koch-server.de
mastodon.1up2down.social
social.k2pk.com
bayerwald.social
mastodon.saarland.social
masto.uc-netcorsoft.de
mstdn.doern.tech
social.digital-artifacts.net
buckaroo.city
social.vleij.com
social.k1024.de
troet.witte-nyumbani.de
mastodon.mariustimmer.de
mastodon.kuenet.ch
inthedeltawaves.social
mastodon.dnns.icu
mastodon.kaschemme701.com
frinx.online
masto2.100flowers.tech
social.onlythe.net
social.itwien.net
unredacted.social
mastodon.zypper.net
eva.cosplaytweet.com
mastodon.bruckner.email
birdbox.party
social.noriakisana.dev
social.wokurka.net
fediverse.live
mastodon.digilol.net
social.stefanberger.net
fedi.bcna.de
mas.todon.de
netzkae.se
social.appbakery.ee
mastodon.terpotiz.net
mastodon.forty-two.sh
social.minecodes.de
mastodon.helvetet.eu
mastodon.gramschladen.de
leipzig.town
mstdn.business
mastodon.jhcooke.com
brettspiel.space
social.beachcom.org
fedi.latenightpopcorn.com
mastodon.scientiam.org
mastodon.naugrim.org
mooose.org
social.zentonic.org
burnout.cafe
social.archworks.co
sozial.roter-kreis.de
social.asgardius.company
misskey.dream-universe.org
mastodon.gemo.social
upload.chat
social.kyzune.com
fedispace.de
mastodon.deathbybandaid.net
social.greatvoid.org
elbmatsch.de
social.sebastian-neu.de
m.flaem.ing
yapmi.net
m.ipoac.nl
burningboard.net
masto.allerlei.it
sns.onjann.club
toot.againstallodds.games
social.kalterwinter.info
mastodon.phundrak.com
jasdemi.com
mastodon.enitin.xyz
social.eggipedia.de
otaku.1337.blue
sharkeyspace.de
club.dd5aa.de
social.insider-it.de
firefish.nospy.net
mastodon.friendnet.eu
mastodon.moestel.eu
mastodon.mrtoto.de
firefish.fediverse.live
mastodon.solvality.com
social.crablab.uk
ottweiler.social
social.misk.cf
cosplaytweet.com
social.macer.life
tranvender.site
toot.brumm.family
mastodon.baderpetrick.de
fedi.timka.win
toot.houbahouba.de
mast.lukeog.com
social.stezen.de
mstdn.jklmno.org
sipstea.town
misskey.eskimo.com
social.alpacaverse.games
borg.social
miltodon.social
maztodon.se
social.pericles.hu
mastodon.une.fi
afterspace.rocks
misskey.bootjp.me
social.adlerweb.info
notwork.in
thomasjpr.social
mstdn.mv2k.com
masto.versagt.wien
thohme.de
dresden.network
mrrp.chimmie.k.vu
mastodon.kmu-angebote.ch
guerrill.art
mastodon.pixadon.ch
mastodon.wananavuoutfitters.com
privacysafe.social
fed.interfree.ca
social.eubf.net
toot.zerojay.com
fursona.party
mastodon.bayern
social.anno79.de
qicx.net
mastodon.bstly.de
mastodon.deepspace.cafe
social.rrrr.wtf
mastodon.fonsos.com
mastodon.itwichtel.de
connect.braydmedia.de
franken.social
mastodon.loss.com.de
nochiiverse.eu
mastodon.joschlies.nohost.me
noto.social
fastani.me
troete.rechenkugel.de
mastodon.jabbxi.de
frawas.de
m.pilz.foo
m.freq.io
catswords.social
mastodon.hostnetwork.xyz
mstdn.jmrp.io
mastodon.thecrimsontint.com
hi.fabis.cafe
public.brothertec.eu
genista.osrx.chat
mast.flups.familyds.org
social.ceod.net
firefish.nesohub.org
mastopouet.fr
sachsen-medien.social
social.peregrinor.net
mastodon.ozioso.online
social-pflege.de
swissodon.ch
mastodon.calitabby.net
mastodon.rh-social.org
social.merk.ac
m.deepspace.cafe
ruby.good.news
mastodon.blocki.net
social.13-dx.de
soc.cluboftone.com
ciechom.nohost.me
bremen.digital
mastodon.greatvoid.org
mastodon.1337.blue
mastodon.livingonlinenow.com
her-mann.de
falkensee.social
skyland.social
pfalz.social
plusi.moe
masto.kurohana.me
mstdn.dru5k1.io
mastdn.coffeehack.org
soziale.cloud
mstdn.sekbaer.de
fed.crimsh.com
mast.marzillier.net
mas.x64.onl
mastodon.rzgierskopp.de
social.spicysources.de
m.mirv.top
mastodon.liersch.it
social.khaus.io
penguicon.social
social.iamernie.ca
mastodon-dev.stevex.online
mastodon.myocci.social
mastodon.gaias.social
sidestore.social
social.schnitzler.one
social.xnet.place
m.heine.xyz
mastodon.magnor.ovh
swedishmastodon.social
space.jeroenvd.nl
mastodon.maechler.cloud
privacyofficers.social
test.mastodon.makerforce.io
social.media-techport.de
bb5.social
vhs.social
sharkey.coffeeandtrains.de
sueden.social
flauschbar.thoshiswelt.de
mastodon.jonasled.de
k2pk.com
spreebits.de
gnurfl.de
shark.datenkastl.de
social.klein.ruhr
hacks.fi
mastodon.nextcraft.link
whatisthat.xyz
social.flashz.directory
f.dresden.network
zeebo.social
mastodon.hausofhomeaux.ca
mastodon.greilach.dev
social.main-angler.de
social.zerojay.com
edafe.social
astroposting.de
mastodon.nordic.online
sharkey.nospy.net
social.rsl.gg
mastodon.zapfmeister.net
fediverse.serialexperiments.club
toot.wiai.de
liberareto.nesohub.org
social.marzillier.net
social.blazma.st
knse.net
schraepler.de
disobey.net
talk.mls20.de
collins-corner.cc
status.pointless.one
social.michels.xyz
social.undeadnetwork.de
friendica.collectifdhun.ovh
social.yussuv.com
ratingen.social
mastodon.neatobuilds.com
ruz.social
soc.intxiv.io
social.sp-codes.de
social.glisco.de
soc.c11um.de
mastodon.dsss.space
social.rand0m.fail
md.jott-emm.social
social.techniverse.net
mast.internal.nullreference.io
talk.balfolk.social
mastodon.darkness.services
fruef.social
netcup.social
mastodon.dsdrive.fr
fedi.social
social.dvdr.download
troet.burg-halle.de
mastodon.eskimo.com
social.cybertalk.io
social.amichan.de
masto.baranovski.cloud
netzverpetzer.de
ciechom.eu
mastodon.floe.earth
social.trackside.blog
mastodon.jamidisi-edu.de
social.xyntion.consulting
mastodon.alphapuggle.dev
shout.3xd.eu
mastodontech.de
nautical.social
schaumburg.social
strangeminds.social
mastodon.wivodaim.net
partyparrot.social
apotheke.social
mastodonian.org
is-likely.gay
mastodon.kug.is
atergens.com
kupione.click
mastodon.mrak.at
social.msaood.com
observatory.cyber.harvard.edu
mastodon.eble.name
glitch.sekbaer.de
opencoaster.net
mstd.ink
firefish.crazy-to-bike.de
ramblings.social
x.good.news
mastodon.trabus322.eu
social-potsdam.space
akkoma.alster.space
social.elstabloserver.de
ferals-on.top
soc.cluboftone.com
declin.eu
fedi.lowpassfilter.link
pleroma.gruenelin.de
waifus.biz
fedi.kooosh.de
social.mdosch.de
glegle.party
fedi.u2p.net
station.y-space.de
social.vengeful.eu
social.kyzune.com
pleroma.7seven.cloud
social.otsuka.haus