RBL Registry

Known Reverse Domain Name System Lists
Books:
  Spam Wars
  Building a DNSBL

Projects:
  Global WHOIS
  DNSBL Scan
  TTBL
  RBL Registry

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All Currently known DNSBL zones are listed below in. Some have been closed since discovery and are marked as Dead.

This Registry includes: Infolists, Blocklists, and Whitelists of both Reverse-IP and Right-Hand-Side Types.
Recommendations are geared toward usefulness in blocking unwanted traffic. Lists marked with a star are highly useful as blocklists, those with a skull will cause severe loss of data.

There are currently 65 major lists known.
Of the 1171 Zones known: 814 are available, 108 are useful, and 20 are Rating: Worth UsingRecommended.

Check your IP for listings in the Useful RBLs.

Check your IP for listings in the Available RBLs. (Slow)

Alternative scanners
KEY: Public, Private, Dead

Lists are tested automatically according to A and TXT responses in accordance with popular-usage and draft-irtf-asrg-dnsbl

RFC Ignorant (RFCI) Website for Further Information
VISI
NJABL - Not Just Another Bogus List Rating: Worth UsingWebsite for Further Information
SpamCop (SCBL) Rating: Worth UsingWebsite for Further Information
Spamhaus Rating: Worth UsingWebsite for Further Information
SURBL - Spam URI Realtime Blocklists Rating: Worth UsingWebsite for Further Information
Blackholes Rating: NoneWebsite for Further Information
BondedSender - SenderScoreCertified Rating: NoneWebsite for Further Information
CBL - Composite Block List Rating: NoneWebsite for Further Information
DeadBeef - List of ISP without public contacts Rating: NoneWebsite for Further Information
DNS-bl - DNS Providers Blacklist Rating: NoneWebsite for Further Information
Fable - Spam Sources List Rating: NoneWebsite for Further Information
Five-Ten - 510 Software Group Rating: NoneWebsite for Further Information
Habeas - The Email Trust Authority Rating: NoneWebsite for Further Information
LNSG - LeadMon SpamGuard Rating: NoneWebsite for Further Information
Private - Intersil Blackholes Rating: None
Private - Kundenserver.de Rating: NoneWebsite for Further Information
Private - No-More-Funn Rating: NoneWebsite for Further Information
Surriel.com Rating: NoneWebsite for Further Information
TQM3 - TQM Cubed Rating: NoneWebsite for Further Information
UCE Protect (UCPN) Rating: NoneWebsite for Further Information
Private - DeLink Rating: DeadlyWebsite for Further Information
Message Labs
Outblaze
Private - blakjak.net Website for Further Information
Private - MAPS - Mail-Abuse / Trend Micro
Wirehub
SPEWS - Spam Prevention and Early Warning System Rating: Worth UsingWebsite for Further Information
Countries - Geographic Database Rating: NoneWebsite for Further Information
DroneBL Rating: NoneWebsite for Further Information
JAMM Consulting Rating: NoneWebsite for Further Information
MailPolice Rating: NoneWebsite for Further Information
ORID - Anti-Spam Rating: NoneWebsite for Further Information
PDL - Pan-Am Dynamic List Rating: NoneWebsite for Further Information
Private - Rominet Rating: None
T-FWL - Trusted Forwarder Rating: NoneWebsite for Further Information
TOR list Rating: NoneWebsite for Further Information
Web-O-Trust Rating: NoneWebsite for Further Information
WPBL - Weighted Private Block List Rating: NoneWebsite for Further Information
Private - Summersault.com Rating: DeadlyWebsite for Further Information
Spamsites Rating: DeadlyWebsite for Further Information
Blitzed Website for Further Information
Complete WHOIS (CWHO) Website for Further Information
Monkeys
Private - Spambag.org Website for Further Information
AHBL - Abusive Hosts Blocking List Rating: Worth UsingWebsite for Further Information
ORDB - Open Relay Database Rating: Worth UsingWebsite for Further Information
Private - Osirusoft Rating: Worth UsingWebsite for Further Information
SORBS - Spam and Open Relay Blocking System Rating: Worth UsingWebsite for Further Information
TTBL - TechTheft Security Event Archives Rating: Worth UsingWebsite for Further Information
BIT.NL Rating: NoneWebsite for Further Information
DRBL - Distributed Real-time Block List Rating: NoneWebsite for Further Information
DSBL - Distributed Sender Blackhole List Rating: NoneWebsite for Further Information
FLOWGO - FloNetworks Allocations Rating: None
ISIPP - Institute for Spam and Internet Public Policy Rating: NoneWebsite for Further Information
KRBL - Kropka RBL Rating: NoneWebsite for Further Information
Nether - puck.nether.net Rating: NoneWebsite for Further Information
Private - McFadden Associates Email Blacklist Rating: NoneWebsite for Further Information
Rangers Rating: None
Reynolds - dnsbl.net.au Rating: NoneWebsite for Further Information
Security SAGE Rating: NoneWebsite for Further Information
ClueCentral - Geographic Database Rating: DeadlyWebsite for Further Information
Compu-Net Rating: DeadlyWebsite for Further Information
Easynet Rating: Deadly
Private - BlarsBL Rating: DeadlyWebsite for Further Information


Other DNS List Zones

Brief Synopsis of ListRating: Deadly dev.null.dk
Brief Synopsis of ListRating: None korea.services.net
Brief Synopsis of ListRating: None bl.spamcannibal.org
Brief Synopsis of ListRating: None bl.technovision.dk
Brief Synopsis of ListRating: None dnsbl.cyberlogic.net
Brief Synopsis of ListRating: None dnsbl.kempt.net
Brief Synopsis of ListRating: None dul.ru
Brief Synopsis of ListRating: None map.spam-rbl.com
Brief Synopsis of ListRating: None rbl.snark.net
Brief Synopsis of ListRating: None blacklist.fpsn.net
Brief Synopsis of ListRating: None bl.emailbasura.org
Brief Synopsis of ListRating: None be.whitelist.skopos.be
Brief Synopsis of ListRating: Deadly blackholes.2mbit.com
Brief Synopsis of ListRating: None blackholes.alphanet.ch
Brief Synopsis of ListRating: None rsbl.aupads.org
Brief Synopsis of ListRating: None duinv.aupads.org
Brief Synopsis of ListRating: None orvedb.aupads.org
Brief Synopsis of ListRating: None vote.drbl.balakovo.ru
Brief Synopsis of ListRating: None devnull.drbl.be.net.ru
Brief Synopsis of ListRating: None blackholes.brainerd.net
Brief Synopsis of ListRating: None work.drbl.carb.ibch.ru
Brief Synopsis of ListRating: None vote.drbl.carb.ibch.ru
Brief Synopsis of ListRating: None fl.chickenboner.biz
Brief Synopsis of ListRating: None spamsources.dnsbl.info
Brief Synopsis of ListRating: None spam.dnsrbl.net
Brief Synopsis of ListRating: None dun.dnsrbl.net
Brief Synopsis of ListRating: None intruders.docs.uu.se
Brief Synopsis of ListRating: None rsync.dsbl.org
Brief Synopsis of ListRating: None work.drbl.east.ru
Brief Synopsis of ListRating: None vote.drbl.east.ru
Brief Synopsis of ListRating: None rbl.echelon.pl
Brief Synopsis of ListRating: None forbidden.icm.edu.pl
Brief Synopsis of ListRating: None rbl.firstbase.com
Brief Synopsis of ListRating: None rbl.fnider.dk
Brief Synopsis of ListRating: None msgid.bl.gweep.ca
Brief Synopsis of ListRating: None random.bl.gweep.ca
Brief Synopsis of ListRating: None work.drbl.studio.ibch.ru
Brief Synopsis of ListRating: None vote.drbl.studio.ibch.ru
Brief Synopsis of ListRating: None work.drbl.inter.ru
Brief Synopsis of ListRating: None vote.drbl.inter.ru
Brief Synopsis of ListRating: None dnsbl.isoc.bg
Brief Synopsis of ListRating: None dnswl.isoc.bg
Brief Synopsis of ListRating: None dialup.blacklist.jippg.org
Brief Synopsis of ListRating: None jp.dialups.blacklist.jippg.org
Brief Synopsis of ListRating: None mail-abuse.blacklist.jippg.org
Brief Synopsis of ListRating: None non-jp.dialups.blacklist.jippg.org
Brief Synopsis of ListRating: None ork.drbl.kaa.ru
Brief Synopsis of ListRating: None vote.drbl.vimas.kiev.ua
Brief Synopsis of ListRating: None vote.drbl.kis.ru
Brief Synopsis of ListRating: None work.drbl.kis.ru
Brief Synopsis of ListRating: None whitelist.sci.kun.nl
Brief Synopsis of ListRating: None blacklist.sci.kun.nl
Brief Synopsis of ListRating: None rbl.ma.krakow.pl
Brief Synopsis of ListRating: None assholes.madscience.nl
Brief Synopsis of ListRating: None maildeflector.net
Brief Synopsis of ListRating: None block.me.uk
Brief Synopsis of ListRating: None kempt.net
Brief Synopsis of ListRating: None vote.drbl.novsu.ac.ru
Brief Synopsis of ListRating: None work.drbl.novsu.ac.ru
Brief Synopsis of ListRating: None virus.drbl.novsu.ac.ru
Brief Synopsis of ListRating: None dialup.drbl.novsu.ac.ru
Brief Synopsis of ListRating: None vote.drbl.nsk.eldorado.ru
Brief Synopsis of ListRating: None rbl.ntvinet.net
Brief Synopsis of ListRating: None vote.rbl.ntvinet.net
Brief Synopsis of ListRating: None or.orbl.org
Brief Synopsis of ListRating: None openlists.orbs.org
Brief Synopsis of ListRating: None inputs.orbs.org
Brief Synopsis of ListRating: None fnrbl.fast.net
Brief Synopsis of ListRating: None relays.nthelp.com
Brief Synopsis of ListRating: None spamtrap.drbl.drand.net
Brief Synopsis of ListRating: None spamprobe.drbl.drand.net
Brief Synopsis of ListRating: None info.drbl.drand.net
Brief Synopsis of ListRating: None vote.drbl.drand.net
Brief Synopsis of ListRating: None work.drbl.drand.net
Brief Synopsis of ListRating: None spam.wytnij.to
Brief Synopsis of ListRating: None rbl.triumf.ca
Brief Synopsis of ListRating: None work.drbl.sotcom.ru
Brief Synopsis of ListRating: None work.drbl.balakovo.ru
Brief Synopsis of ListRating: None rblmap.tu-berlin.de
Brief Synopsis of ListRating: None will-spam-for-food.eu.org
Brief Synopsis of ListRating: None blackholes.wirehub.net
Brief Synopsis of ListRating: None work.drbl.vsu.ru
Brief Synopsis of ListRating: None bl.starloop.com
Brief Synopsis of ListRating: None blackholes.sandes.dk
Brief Synopsis of ListRating: None blocklist.squawk.com
Brief Synopsis of ListRating: None blocklist2.squawk.com
Brief Synopsis of ListRating: None proxy.bl.gweep.ca
Brief Synopsis of ListRating: None rbl.schulte.org
Brief Synopsis of ListRating: None relays.bl.gweep.ca
Brief Synopsis of ListRating: None spam.olsentech.net
Brief Synopsis of ListRating: None mail.people.it
Brief Synopsis of ListRating: None bl.tolkien.dk
Brief Synopsis of ListRating: None rbl.pil.dk
Brief Synopsis of ListRating: None blacklist.woody.ch
Brief Synopsis of ListRating: None zebl.zoneedit.com
Brief Synopsis of ListRating: None spam.wonk.org
Brief Synopsis of ListRating: None fresh.dict.rbl.arix.com
Brief Synopsis of ListRating: None stale.dict.rbl.arix.com
Brief Synopsis of ListRating: None proxies.mail-abuse.org
Brief Synopsis of ListRating: None vote.drbl.piter.net
Brief Synopsis of ListRating: None vote.drbl.tomsknet.ru
Brief Synopsis of ListRating: None vote.drbl.sotcom.ru
Brief Synopsis of ListRating: None vote.drbl.rinet.ru
Brief Synopsis of ListRating: None dialup.drbl.sandy.ru
Brief Synopsis of ListRating: None work.drbl.sandy.ru
Brief Synopsis of ListRating: None rbl.drbl.wplus.net
Brief Synopsis of ListRating: None vote.drbl.sub.ru
Brief Synopsis of ListRating: None rbl.fnidder.dk
Brief Synopsis of ListRating: None work.drbl.piter.net
Brief Synopsis of ListRating: None relays.sandes.dk
Brief Synopsis of ListRating: None spam.shri.net
Brief Synopsis of ListRating: None bogon.dnsbl.sorbs.net
Brief Synopsis of ListRating: None whitelist.spamblocked.com
Brief Synopsis of ListRating: None south.blocklist.squawk.com
Brief Synopsis of ListRating: None rbl.triumpf.ca
Brief Synopsis of ListRating: None query.trustic.com
Brief Synopsis of ListRating: None rbl.uib.no
Brief Synopsis of ListRating: None rbl-ok.uib.no
Brief Synopsis of ListRating: None dma.whew.com
Brief Synopsis of ListRating: None work.drbl.zuzino.net.ru
Brief Synopsis of ListRating: None vote2.drbl.zuzino.net.ru
Brief Synopsis of ListRating: None vote3.drbl.zuzino.net.ru
Brief Synopsis of ListRating: None blacklist.kernelnewbies.nl
Brief Synopsis of ListRating: None dnsrbl.swinog.ch
Brief Synopsis of ListRating: None dul.orca.bc.ca
Brief Synopsis of ListRating: None okrelays.nthelp.com
Brief Synopsis of ListRating: None blacklist.mail.ops.asp.att.net
Brief Synopsis of ListRating: None rol.drbl.bmik.ru
Brief Synopsis of ListRating: None vote.drbl.bmik.ru
Brief Synopsis of ListRating: None work.drbl.bmik.ru
Brief Synopsis of ListRating: None pdl.bofh.it
Brief Synopsis of ListRating: Deadly bl.borderworlds.dk
Brief Synopsis of ListRating: None openlists.cjb.net
Brief Synopsis of ListRating: None bogons.cymru.com
Brief Synopsis of ListRating: None work.rsbs.express.ru
Brief Synopsis of ListRating: None vote.rsbs.express.ru
Brief Synopsis of ListRating: None proxies.exsilia.net
Brief Synopsis of ListRating: None spam.exsilia.net
Brief Synopsis of ListRating: None orbz.gst-group.co.uk
Brief Synopsis of ListRating: None manual.orbz.gst-group.co.uk
Brief Synopsis of ListRating: None 3y.spam.mrs.kithrup.com
Brief Synopsis of ListRating: None lbl.lagengymnastik.dk
Brief Synopsis of ListRating: None spam.lbl.lagengymnastik.dk
Brief Synopsis of ListRating: None bogon.lbl.lagengymnastik.dk
Brief Synopsis of ListRating: None policy.lbl.lagengymnastik.dk
Brief Synopsis of ListRating: None all.spamblock.unit.liu.se
Brief Synopsis of ListRating: None generic.rwl.mailabusedatabase.com
Brief Synopsis of ListRating: None ybl.megacity.org
Brief Synopsis of ListRating: None relaywatcher.n13mbl.com
Brief Synopsis of ListRating: Deadly inflow.noflow.org
Brief Synopsis of ListRating: Deadly rbl.openrbl.org
Brief Synopsis of ListRating: Deadly outputs.orbz.org
Brief Synopsis of ListRating: Deadly inputs.orbz.org
Brief Synopsis of ListRating: None cubl.freaspeachmarket.us
Brief Synopsis of ListRating: None spamsources.yamta.org
Brief Synopsis of ListRating: None blocked.secnap.net
Brief Synopsis of ListRating: None xbl.selwerd.cx
Brief Synopsis of ListRating: None blackholes.uceb.org
Brief Synopsis of ListRating: None sbbl.they.com
Brief Synopsis of ListRating: None rbl.v6net.org
Brief Synopsis of ListRating: None orbs.dorkslayers.com
Brief Synopsis of ListRating: None spammers.v6net.org
Brief Synopsis of ListRating: None rbl.rope.net
Brief Synopsis of ListRating: None relays.dorkslayers.com
Brief Synopsis of ListRating: None ztl.dorkslayers.com
Brief Synopsis of ListRating: None access.redhawk.org
Brief Synopsis of ListRating: None bl.redhatgate.com
Brief Synopsis of ListRating: None dnsbl.solid.net
Brief Synopsis of ListRating: None ppbl.beat.st
Brief Synopsis of ListRating: None pss.spambusters.org.ar
Brief Synopsis of ListRating: None dnsbl.cbn.net.id
Brief Synopsis of ListRating: None bl.spam-trap.net
Brief Synopsis of ListRating: None dnsbl.regedit64.net
Brief Synopsis of ListRating: None vote.drbl.sampo.ru
Brief Synopsis of ListRating: None work.drbl.sampo.ru
Brief Synopsis of ListRating: None vbl.mookystick.com
Brief Synopsis of ListRating: None accept.the-carrot-and-the-stick.com
Brief Synopsis of ListRating: None reject.the-carrot-and-the-stick.com
Brief Synopsis of ListRating: None dnsbl.sorbl.com
Brief Synopsis of ListRating: None dul.maps.vix.com
Brief Synopsis of ListRating: None rbl.maps.vix.com
Brief Synopsis of ListRating: None relays.radparker.com
Brief Synopsis of ListRating: None spews.org
Brief Synopsis of ListRating: Deadly(??) ipal.progressivedeals.com
Brief Synopsis of ListRating: None(??) blocked.hilli.dk
Brief Synopsis of ListRating: None(??) blacklist.informationwave.net
Brief Synopsis of ListRating: None(??) dews.qmail.org
Brief Synopsis of ListRating: None(??) vox.schpider.com
Brief Synopsis of ListRating: None(??) rbl.spam.org.tr

Alternatives to DNSBL

The DCC Network.

The Distributed Checksum Clearinghouse allows your computer to work in conjunction with others, and uses the premise that the same message arriving at many different unrelated servers is likely spam (or a mailing list, which also gets handled properly).

The Spamhaus DROP List.

DROP (Don't Route Or Peer) is an advisory "drop all traffic" list, consisting of stolen 'zombie' netblocks and netblocks controlled entirely by professional spammers. It is designed for use by firewalls and routers to drop all traffic to and from the listed invalid IPs.