List of 277 registered instances:
knse.net
social.xyntion.consulting
mstdn.mv2k.com
mastodon.nordic.online
astroposting.de
fedi.timka.win
mastodon.maechler.cloud
burnout.cafe
mastodon.alphapuggle.dev
mstdn.jklmno.org
friendica.collectifdhun.ovh
mastodon.bstly.de
space.jeroenvd.nl
social.kalterwinter.info
mastodon.zypper.net
social.itwien.net
frinx.online
frawas.de
noto.social
mastodon.forty-two.sh
social.fischbyte.de
social.ceod.net
upload.chat
mastodon.thecrimsontint.com
guerrill.art
fruef.social
nautical.social
mastodon.1337.blue
mastodon.naugrim.org
bremen.digital
falkensee.social
otaku.1337.blue
m.heine.xyz
social.digital-artifacts.net
mastdn.communisme-informel.zone
genista.osrx.chat
social.cybertalk.io
mastodon.nextcraft.link
social.marzillier.net
hacks.fi
ratingen.social
opencoaster.net
buckaroo.city
privacyofficers.social
mastodon.greatvoid.org
mastodon.eble.name
bayerwald.social
mastodon.deepspace.cafe
privacysafe.social
mastodon.dnns.icu
mooose.org
sharkey.coffeeandtrains.de
social.eubf.net
toot.againstallodds.games
leipzig.town
mastodon.mariustimmer.de
racoon.social
social.13-dx.de
sueden.social
mastodonian.org
mast.marzillier.net
social.michels.xyz
mastodon.dsdrive.fr
mstd.ink
collins-corner.cc
partyparrot.social
social.alpacaverse.games
social.pericles.hu
mastodon.blocki.net
burningboard.net
public.brothertec.eu
mastodon.wivodaim.net
fastani.me
eva.cosplaytweet.com
social.rsl.gg
social.zentonic.org
social.stefanberger.net
social.onlythe.net
social.amichan.de
inthedeltawaves.social
mastodon.enitin.xyz
talk.mls20.de
social.trackside.blog
ciechom.nohost.me
jasdemi.com
social.minecodes.de
pfalz.social
penguicon.social
yapmi.net
flauschbar.thoshiswelt.de
soc.c11um.de
afterspace.rocks
mastodon.mrak.at
mastodontech.de
mstdn.business
social.misk.cf
mastodon.adtension.com
ottweiler.social
whatisthat.xyz
mastodon.phundrak.com
shout.3xd.eu
mastodon.daponline.com
social.media-techport.de
ruby.good.news
mast.lukeog.com
gnurfl.de
social.greatvoid.org
social.rand0m.fail
notwork.in
social.adlerweb.info
brettspiel.space
mastodon.myocci.social
maztodon.se
social.spicysources.de
social.beachcom.org
mastodon.1up2down.social
cosplaytweet.com
mastodon.gramschladen.de
social.beaware.live
social-pflege.de
x.good.news
mast.internal.nullreference.io
firefish.nesohub.org
her-mann.de
apotheke.social
troet.witte-nyumbani.de
mastodon.livingonlinenow.com
fairy.id
mastodon.wappler.systems
mastodon.rzgierskopp.de
social.wokurka.net
liberareto.nesohub.org
mastodon.koch-server.de
mstdn.fan
bb5.social
firefish.nospy.net
firefish.fediverse.live
social.blazma.st
zeebo.social
ciechom.eu
mastopouet.fr
sns.onjann.club
social.anno79.de
netzkae.se
mstdn.doern.tech
mastodon.irridium.de
social.retronerd.at
social-potsdam.space
mastodon.wananavuoutfitters.com
mstdn.jmrp.io
mastodon.dsss.space
social.techniverse.net
mastodon.deathbybandaid.net
mastodon.darkness.services
sozial.roter-kreis.de
swissodon.ch
md.jott-emm.social
social.kyzune.com
mstdn.fun.systems
social.insider-it.de
mastodon.greilach.dev
mastodon.liersch.it
m.deepspace.cafe
mastodon.magnor.ovh
soc.cluboftone.com
social.breisgaucave.de
social.studio.link
fed.crimsh.com
mastodon-dev.stevex.online
misskey.bootjp.me
disobey.net
justabit.social
mastodon.jamidisi-edu.de
mastodon.mrtoto.de
misskey.dream-universe.org
plaudern.duckdns.org
fedineko.org
social.yussuv.com
social.vermona.com
mastodon.hausofhomeaux.ca
misskey.eskimo.com
club.dd5aa.de
social.eggipedia.de
mastodon.digilol.net
social.stezen.de
sharkeyspace.de
social.rrrr.wtf
mastodon.solvality.com
troet.burg-halle.de
sachsen-medien.social
social.undeadnetwork.de
mastodon.loss.com.de
troetmund.de
social.asgardius.company
eva00.cosplaytweet.com
status.pointless.one
mastodon.kmu-angebote.ch
social.sebastian-neu.de
netcup.social
schaumburg.social
homo.1919810.space
fursona.party
mastodon.cyberreality.org
m.flaem.ing
catswords.social
mas.todon.de
dresden.network
nochiiverse.eu
blog.davidmckeitch.com
mastodon.jhcooke.com
flipboard.social
m.freq.io
social.crablab.uk
mast.flups.familyds.org
vaughan.social
social.appbakery.ee
firefish.crazy-to-bike.de
mastodon.jabbxi.de
mastdn.io
good.news
mastodon.une.fi
borg.social
mas.x64.onl
mastodon.moestel.eu
kitty.community
fedi.latenightpopcorn.com
social.k1024.de
fedihub.de
mastodon.zapfmeister.net
fed.interfree.ca
thohme.de
schraepler.de
swedishmastodon.social
connect.braydmedia.de
fedi.abmgrt.dev
17th.me
plusi.moe
mastodon.floe.earth
mastodon.bruckner.email
f.dresden.network
mastodon.rh-social.org
social.la-scic.fr
social.iamernie.ca
mstdn.sekbaer.de
mastodon.terpotiz.net
edafe.social
social.flashz.directory
social.sp-codes.de
fediverse.live
mastdn.coffeehack.org
skyland.social
birdbox.party
sharkey.nospy.net
social.xnet.place
mastodon.olivernitsche.synology.me
social.archworks.co
mstdn.org
netzverpetzer.de
mastodon.fonsos.com
social.cooltux.net
fedispace.de
mastodon.baderpetrick.de
miltodon.social
pleroma.gruenelin.de
waifus.biz
declin.eu
social.elstabloserver.de
fedi.u2p.net
glegle.party
soc.cluboftone.com
pleroma.7seven.cloud
social.otsuka.haus
station.y-space.de
social.kyzune.com
social.vengeful.eu
fedi.lowpassfilter.link
ferals-on.top