List of 347 registered instances:
ruby.good.news
social.sebastian-neu.de
masto.uc-netcorsoft.de
social.wokurka.net
hi.fabis.cafe
fedi.abmgrt.dev
mastodon.magnor.ovh
soc.intxiv.io
plaudern.duckdns.org
sidestore.social
f.dresden.network
sns.onjann.club
afterspace.rocks
mastodon.forty-two.sh
mastodon.digilol.net
vaughan.social
talk.mls20.de
fairy.id
mastodon.nordic.online
otaku.1337.blue
mastodon.mrtoto.de
mastodonian.org
strangeminds.social
whatisthat.xyz
flauschbar.thoshiswelt.de
m.freq.io
17th.me
toot.houbahouba.de
burnout.cafe
masto.kurohana.me
bb5.social
mastodon.darkness.services
gnurfl.de
mastodon.hostnetwork.xyz
mrrp.chimmie.k.vu
mast.flups.familyds.org
mas.todon.de
ruz.social
mastodon.deepspace.cafe
mastodon.terpotiz.net
social.rsl.gg
social.stefanberger.net
mastopouet.fr
fruef.social
social.adlerweb.info
mastodon.hausofhomeaux.ca
mstdn.jklmno.org
soziale.cloud
sipstea.town
mstd.ink
sachsen-medien.social
social.vleij.com
schraepler.de
mstdn.dru5k1.io
fedi.timka.win
social.13-dx.de
mastodon.une.fi
vault37.xyz
m.pilz.foo
mooose.org
social.blazma.st
mastodon.dsdrive.fr
mastodon.wivodaim.net
observatory.cyber.harvard.edu
hacks.fi
mastodon.greilach.dev
burningboard.net
mastodon.1337.blue
astroposting.de
mastodon.cyberreality.org
misskey.bootjp.me
penguicon.social
social.pericles.hu
fed.crimsh.com
fedispace.de
social.misk.cf
mastodon.jabbxi.de
atergens.com
mastodon.gaias.social
social.undeadnetwork.de
mastodon.daponline.com
social.k1024.de
firefish.crazy-to-bike.de
nochiiverse.eu
mast.internal.nullreference.io
social.iamernie.ca
social.vermona.com
unredacted.social
fedi.latenightpopcorn.com
mastodon.zypper.net
mastodon-dev.stevex.online
mastodon.bayern
social.khaus.io
mastodon.floe.earth
falkensee.social
social.breisgaucave.de
kitty.community
social.mapf.net
mastodon.mrak.at
social.klein.ruhr
ciechom.nohost.me
fastani.me
social.anno79.de
social.la-scic.fr
bremen.digital
glitch.sekbaer.de
zeebo.social
maztodon.se
mastodon.helvetet.eu
jasdemi.com
masto.baranovski.cloud
mastodon.phundrak.com
sozial.roter-kreis.de
social.kalterwinter.info
liberareto.nesohub.org
mastodon.kaschemme701.com
public.brothertec.eu
social.greatvoid.org
mas.x64.onl
collins-corner.cc
m.heine.xyz
misskey.dream-universe.org
netzverpetzer.de
buckaroo.city
social.retronerd.at
catswords.social
troet.witte-nyumbani.de
mastdn.communisme-informel.zone
nautical.social
social.peregrinor.net
mastodon.loss.com.de
sharkeyspace.de
social.rand0m.fail
social.cooltux.net
mastodon.jamidisi-edu.de
mastodon.jhcooke.com
mastodon.gemo.social
fedi.social
social.amichan.de
mastodon.friendnet.eu
mastdn.io
bayerwald.social
x.good.news
social.zentonic.org
mastodon.trabus322.eu
masto.versagt.wien
social.rrrr.wtf
fed.interfree.ca
social.media-techport.de
mastodon.kmu-angebote.ch
social.insider-it.de
mastodon.solvality.com
mastodon.fonsos.com
k2pk.com
guerrill.art
netcup.social
racoon.social
social.dvdr.download
mast.lukeog.com
genista.osrx.chat
fedihub.de
ciechom.eu
mstdn.fun.systems
mast.marzillier.net
mastodon.greatvoid.org
mastodon.livingonlinenow.com
social.archworks.co
troet.burg-halle.de
leipzig.town
blog.davidmckeitch.com
mastodon.enitin.xyz
social.eggipedia.de
social.spicysources.de
borg.social
mastodon.wappler.systems
social.michels.xyz
partyparrot.social
fursona.party
space.jeroenvd.nl
homo.1919810.space
social.techniverse.net
mastodon.blocki.net
social.minecodes.de
social.digital-artifacts.net
social.asgardius.company
mastodon.malmoe.social
social.onlythe.net
social.alpacaverse.games
troete.rechenkugel.de
m.mirv.top
privacyofficers.social
m.deepspace.cafe
mastodon.qsv.ch
mastodon.naugrim.org
opencoaster.net
eva.cosplaytweet.com
social.schnitzler.one
social-potsdam.space
misskey.eskimo.com
toot.brumm.family
inthedeltawaves.social
mastodon.joschlies.nohost.me
social.sixdegreesofohio.com
social.noriakisana.dev
brotkru.me
apotheke.social
social.yussuv.com
social.beachcom.org
swissodon.ch
knse.net
brettspiel.space
mastodon.mynet.one
firefish.nesohub.org
devellight.space
social.sp-codes.de
is-likely.gay
sharkey.coffeeandtrains.de
mstdn.mv2k.com
yapmi.net
mastodon.alphapuggle.dev
md.jott-emm.social
schaumburg.social
m.flaem.ing
social.crablab.uk
mastdn.coffeehack.org
thomasjpr.social
fedineko.org
mstdn.doern.tech
mastodon.myocci.social
shout.3xd.eu
mastodon.georgschilling.de
mastodon.derg.nz
social.glisco.de
mastodontech.de
mastodon.zapfmeister.net
her-mann.de
troetmund.de
mastodon.thecrimsontint.com
netzkae.se
birdbox.party
toot.againstallodds.games
social.itwien.net
masto2.100flowers.tech
social.marzillier.net
mastodon.wananavuoutfitters.com
social.eubf.net
social.xnet.place
mastodon.ozioso.online
mastodon.jonasled.de
toot.wiai.de
skyland.social
mastodon.mariustimmer.de
sharkey.nospy.net
mastodon.pixadon.ch
status.pointless.one
mstdn.sekbaer.de
mastodon.saarland.social
social.appbakery.ee
mastodon.eble.name
edafe.social
justabit.social
talk.balfolk.social
mastodon.rh-social.org
flipboard.social
mastodon.maechler.cloud
social.cybertalk.io
mastodon.rzgierskopp.de
mastodon.baderpetrick.de
connect.braydmedia.de
mastodon.dsss.space
mastodon.dnns.icu
social.flashz.directory
notwork.in
social.xyntion.consulting
disobey.net
firefish.fediverse.live
mstdn.org
club.dd5aa.de
sueden.social
eva00.cosplaytweet.com
masto.allerlei.it
cosplaytweet.com
mastodon.bruckner.email
mastodon.itwichtel.de
mastodon.adtension.com
mastodon.olivernitsche.synology.me
upload.chat
social.trackside.blog
noto.social
mastodon.calitabby.net
mastodon.1up2down.social
mastodon.nextcraft.link
soc.c11um.de
swedishmastodon.social
mstdn.fan
dresden.network
social.beaware.live
ramblings.social
mastodon.madhammer.club
frawas.de
friendica.collectifdhun.ovh
mastodon.liersch.it
thohme.de
pfalz.social
ratingen.social
greennuclear.online
miltodon.social
mastodon.koch-server.de
fediverse.live
soc.cluboftone.com
fediverse.serialexperiments.club
ottweiler.social
spreebits.de
plusi.moe
tranvender.site
social-pflege.de
frinx.online
franken.social
firefish.nospy.net
mastodon.kug.is
privacysafe.social
mastodon.deathbybandaid.net
mastodon.bstly.de
mastodon.moestel.eu
mastodon.irridium.de
mstdn.business
social.ceod.net
social.stezen.de
mastodon.gramschladen.de
social.main-angler.de
mstdn.jmrp.io
fedi.kooosh.de
social.elstabloserver.de
fedi.u2p.net
pleroma.gruenelin.de
social.vengeful.eu
soc.cluboftone.com
declin.eu
glegle.party
fedi.lowpassfilter.link
station.y-space.de
ferals-on.top
social.kyzune.com
pleroma.7seven.cloud
social.otsuka.haus
waifus.biz
social.mdosch.de