List of 403 registered instances:
social.rrrr.wtf
mastdn.coffeehack.org
social.vermona.com
otaku.1337.blue
vaughan.social
tranvender.site
masto.baranovski.cloud
dol.social
sharkey.nospy.net
mastodon.saarland.social
mastodon.kuenet.ch
goingdark.social
misskey.bootjp.me
mastodon.enitin.xyz
swedishmastodon.social
lab.wheelsbot.dev
mastodon.friendnet.eu
yapmi.net
firefish.crazy-to-bike.de
liberareto.nesohub.org
schraepler.de
fastani.me
mstdn.mv2k.com
mastodon.nordic.online
social.domaincrawler.com
social.amichan.de
noto.social
sharkey.coffeeandtrains.de
racoon.social
social.beaware.live
bytepark.social
schaumburg.social
social.la-scic.fr
plaudern.duckdns.org
social.archworks.co
social.flashz.directory
social.macer.life
mastodon.rprivat.eu
brettspiel.space
m.pilz.foo
mastodon.solvality.com
genista.osrx.chat
mastodon.rzgierskopp.de
mastodon.mcb-it.de
troet.witte-nyumbani.de
privacyofficers.social
fediverse.live
collins-corner.cc
social.krserv.de
mastodon.dsss.space
mastodon.gemo.social
mastodon.naugrim.org
soziale.cloud
social.breisgaucave.de
mastodon.fonsos.com
sharkeyspace.de
key.by0.tech
mastodon.calitabby.net
social.onlythe.net
social.sixdegreesofohio.com
mastodon.digilol.net
falkensee.social
mastodon.zypper.net
unredacted.social
m.heine.xyz
talk.balfolk.social
social.glisco.de
k2pk.com
mastodon.trabus322.eu
social.itwien.net
social.ceod.net
hacks.fi
talk.mls20.de
mastodon.alphapuggle.dev
social.cybertalk.io
mstdn.org
social.autonomy.earth
social.k2pk.com
mas.x64.onl
vhs.social
mastodon.magnor.ovh
social.blazma.st
linksextrem.ist
frinx.online
dorm.social
maztodon.se
bayerwald.social
mastodon.jamidisi-edu.de
social.rand0m.fail
netzverpetzer.de
mastodon.loss.com.de
m.deepspace.cafe
mastodon.pixadon.ch
mastodon.helvetet.eu
mastodon.moestel.eu
troetmund.de
social.beachcom.org
mastodon.olivernitsche.synology.me
eva00.cosplaytweet.com
mooose.org
mast.flups.familyds.org
social.khaus.io
mast.internal.nullreference.io
is-likely.gay
mastodon.tgo.social
soc.c11um.de
social.rsl.gg
social.rooty.fr
zeebo.social
mstdn.fun.systems
social.spicysources.de
mastdn.communisme-informel.zone
shark.datenkastl.de
social.undeadnetwork.de
hi.fabis.cafe
ottweiler.social
bremen.digital
social.retronerd.at
fediverse.serialexperiments.club
mastodon.mynet.one
masto.allerlei.it
m.flaem.ing
m.lonet.org
f.dresden.network
mastodon.malmoe.social
social.alpacaverse.games
kitty.community
sns.onjann.club
fedi.latenightpopcorn.com
mastodon.derg.nz
mastodon.livingonlinenow.com
social.vleij.com
sueden.social
social.greatvoid.org
firefish.fediverse.live
m.freq.io
mastodon.myocci.social
masto2.100flowers.tech
mastodon.nextcraft.link
connect.braydmedia.de
mastodon.mrak.at
md.jott-emm.social
social.michels.xyz
mastodon.joschlies.nohost.me
schnauzer.cafe
mstdn.business
mastodon.1337.blue
fedineko.org
mastodon.rh-social.org
miltodon.social
pfalz.social
shout.3xd.eu
re.lire.im
thomasjpr.social
social.adlerweb.info
social.xnet.place
test.mastodon.makerforce.io
thohme.de
mastodon.projetretro.io
netcup.social
birdbox.party
mstdn.kielo.me
mastodon.une.fi
elbmatsch.de
mastodon.gramschladen.de
toot.houbahouba.de
firefish.nospy.net
stay.woke.institute
mstdn.fan
pink-unicorn.club
gnurfl.de
ratingen.social
mast.lukeog.com
stpauli.social
masto.versagt.wien
mstdn.jklmno.org
spreebits.de
mstdn.budgie.lol
mastodontech.de
social.13-dx.de
fedi.timka.win
borg.social
guerrill.art
social.sebastian-neu.de
strangeminds.social
social.minecodes.de
sipstea.town
space.jeroenvd.nl
tacheles.social
mas.todon.de
observatory.cyber.harvard.edu
fediverse.hybridlehrer.de
social.crablab.uk
devellight.space
mastodon.liersch.it
fedispace.de
public.brothertec.eu
mastodon.dsdrive.fr
glitch.sekbaer.de
qicx.net
ciechom.eu
social.iamernie.ca
social.eggipedia.de
ramblings.social
mastodon.wappler.systems
watzmann.social
mastodon.gaias.social
cailincat.cloud
social.techniverse.net
mastodon.hostnetwork.xyz
friendica.collectifdhun.ovh
swissodon.ch
runbsd.duckdns.org
mastodon.hausofhomeaux.ca
homo.1919810.space
privacysafe.social
partyparrot.social
bb5.social
mastodon.georgschilling.de
mastodon.bstly.de
mastodon.koch-server.de
mastodon.mariustimmer.de
opencoaster.net
social.appbakery.ee
mastodon.baderpetrick.de
atergens.com
x.good.news
franken.social
mastodon.jabbxi.de
activityocean.org
mastodon.phundrak.com
mastodon.deepspace.cafe
social.schnitzler.one
mastodon.maechler.cloud
fedi.abmgrt.dev
social.hostnetwork.xyz
catswords.social
misskey.eskimo.com
buckaroo.city
social.yussuv.com
masto.kurohana.me
mastodon.wananavuoutfitters.com
social.trackside.blog
mastodonian.org
flauschbar.thoshiswelt.de
masto.tstoll.me
mastodon.greatvoid.org
soc.intxiv.io
burningboard.net
mastodon.zapfmeister.net
c64.social
upload.chat
mstdn.doern.tech
mastodon.darkness.services
sachsen-medien.social
m.mirv.top
mastdn.io
mastodon.jonasled.de
social.insider-it.de
social.digital-artifacts.net
masto.budgie.lol
mrrp.chimmie.k.vu
social.eubf.net
ruby.good.news
sidestore.social
social.klein.ruhr
flipboard.social
social.noriakisana.dev
mastodon.greilach.dev
mastodon.blocki.net
disobey.net
astroposting.de
social.cooltux.net
social.kalterwinter.info
mastodon.dnns.icu
nochiiverse.eu
fruef.social
social.zerojay.com
misskey.dream-universe.org
social.stezen.de
toot.brumm.family
social.pericles.hu
mastodon.scientiam.org
social.k1024.de
mastodon.jhcooke.com
ruz.social
social-pflege.de
knse.net
mastodon.1up2down.social
club.dd5aa.de
plusi.moe
troete.rechenkugel.de
social.asgardius.company
social.marzillier.net
penguicon.social
jasdemi.com
mastodon.irridium.de
mastodon.forty-two.sh
social.suchtbasis.de
mastodon.thecrimsontint.com
mastodon.itwichtel.de
mastodon.deathbybandaid.net
mastodon.flups.familyds.org
mastodon.ozioso.online
mastodon.mrtoto.de
mastodon.kmu-angebote.ch
skyland.social
mastodon-dev.stevex.online
social.sp-codes.de
inthedeltawaves.social
toot.zerojay.com
troet.burg-halle.de
notwork.in
sozial.roter-kreis.de
fursona.party
mastodon.bayern
mastodon.wivodaim.net
social.misk.cf
status.pointless.one
eva.cosplaytweet.com
mastodon.bruckner.email
social.media-techport.de
social.dvdr.download
frawas.de
her-mann.de
fed.crimsh.com
toot.wiai.de
hauntshadesocial.nl
schumacher.social
mstdn.dru5k1.io
ciechom.nohost.me
cosplaytweet.com
mastodon.eskimo.com
edafe.social
soc.cluboftone.com
fedi.social
17th.me
social.msaood.com
nautical.social
social.xyntion.consulting
social-potsdam.space
social.galih.me
burnout.cafe
mstdn.canarylabs.eu
techtett.de
mstdn.sekbaer.de
social.wokurka.net
mastodon.terpotiz.net
social.grafschaft-aw.de
mastopouet.fr
mastodon.dev-null.rocks
mastodon.kug.is
mastodon.daponline.com
dresden.network
mast.marzillier.net
toot.againstallodds.games
masto.uc-netcorsoft.de
mastodon.adtension.com
unseen-university.social
leipzig.town
fedihub.de
afterspace.rocks
justabit.social
social.zentonic.org
social.anno79.de
social.peregrinor.net
social.stefanberger.net
mastodon.mapf.net
drip_drip_drip.activityocean.org
social.championpictures.at
fed.interfree.ca
social.kyzune.com
firefish.nesohub.org
mastodon.kaschemme701.com
whatisthat.xyz
blog.davidmckeitch.com
mstdn.jmrp.io
fedi.bcna.de
social.main-angler.de
apotheke.social
social.merk.ac
kupione.click
mastodon.cyberreality.org
social.otsuka.haus
reactionarytenderqueer.minecraftnoob.com
ferals-on.top
station.y-space.de
social.vengeful.eu
pleroma.7seven.cloud
glegle.party
fediblock.lol
fedi.kooosh.de
pleroma.gruenelin.de
fedi.u2p.net
social.mdosch.de
waifus.biz
fediblock.24-7.ro
declin.eu
fedi.bryie.com
social.kyzune.com
social.elstabloserver.de
akkoma.alster.space
soc.cluboftone.com