If you know of a working IPv4 Looking Glass site that isn't listed below, feel free to add it. (Don't have a wiki account yet? Sign up here.) Please only add sites that are true BGP looking glasses - pages that only allow ping and/or traceroute should not be included in this list.
Please correct any errors you find in this list. If a site is no longer responding, please change the “OK” in the Notes column to “FAILED” along with the date (mm/dd/yy). If the site becomes operational again, please change the “FAILED” message back to “OK”. If a site has been in “FAILED” status for over a month, it can be removed from the wiki.
| ASN | Provider | Link | Notes |
| 209 | Qwest | http://stat.qwest.net/looking_glass.html | OK |
| 250 | as250.net | https://as250.net/tools/lg/ | OK |
| 286 | KPN Eurorings | http://stats.eurorings.net/performance/lookingglass.html | OK |
| 378 | ILAN | http://noc.ilan.net.il/LG/ | OK |
| 513 | CERN | http://lg.cern.ch/ | OK |
| 559 | SWITCH | http://lg.lan.switch.ch/lg/lg.cgi | OK |
| 680 | DFN | http://www.noc.dfn.de/lg/ | OK |
| 701 | Verizon Business | http://lookingglass.verizonbusiness.com | FAILED 8/2/2010 |
| 766 | RedIRIS | http://www.rediris.es/red/lg/ | OK |
| 812 | Rogers Telecom | https://supernoc.rogerstelecom.net/ops/ | OK |
| 852 | Telus | http://aurora.on.tac.net/ | OK |
| 1120 | Vienna Internet eXchange | http://www.vix.at/cgi-bin/lg.cgi | OK |
| 1213 | HEAnet | http://www.hea.net/cgi-bin/lg.cgi | OK |
| 1239 | SprintLink | https://www.sprint.net/lg/ | OK |
| 1257 | Tele2 Denmark | http://looking-glass.tele2access.dk/ | FAILED 06/20/08 |
| 1273 | Cable & Wireless | https://support.cw.com/?TESTDRIVE=1&LG=1 | OK |
| 1299 | TeliaSonera | http://lg.telia.net/ | OK |
| 1653 | SUNET | http://stats.sunet.se/looking-glass/lg.cgi | OK |
| 1741 | FUNET/CSC | http://www.csc.fi/suomi/funet/noc/looking-glass/lg.cgi | OK |
| 1916 | RNP | http://www.rnp.br/servicos/lg/ | OK |
| 2110 | EsatBT | http://lg.as2110.net | OK |
| 2128 | INEX | https://www.inex.ie/lg/ | OK |
| 2603 | NORDUnet | http://www.nordu.net/connectivity/looking-glass/lg.cgi | OK |
| 2607 | SIX - Slovak Internet eXchange | http://www.six.sk/lg.html | OK |
| 2820 | Elvis-Telekom | http://noc.telekom.ru/lg/ | OK |
| 2828 | XO | http://xostats.xo.com/cgi-bin/xostats/diagtool-pub/bgp | OK |
| 2854 | Orange Business Services Russia | http://lg.gin.ru/ | OK |
| 3216 | Golden Telecom Russia | http://lg.gldn.net/ | OK |
| 3257 | Tiscali | http://www.ip.tiscali.net/lg/ | OK |
| 3267 | RUNNet | http://noc.runnet.ru/lookingglass/index.htm | OK |
| 3277 | RUSnet | http://lg.rusnet.ru/ | OK |
| 3292 | TDC | http://noc.tele.dk/cgi-bin/lg.cgi | OK |
| 3308 | Telia Networks (Danish Network) | http://lg.drift.telia.dk/cgi-bin/lg.cgi | OK |
| 3320 | Deutsche Telekom | https://f-lga1.f.de.net.dtag.de/ | FAILED 06/20/08 |
| 3327 | Linxtelecom | http://lg.version6.net/ | OK |
| 3344 | Kewlio.net Ltd | http://www.as3344.net/lg/index.k | OK |
| 3356 | Level3 | http://lg.level3.net/ | OK |
| 3561 | Savvis | http://as3561lg.savvis.net/lg.html | OK |
| 3602 | Rogers Telecom | https://supernoc.rogerstelecom.net/ops/ | OK |
| 3856 | PCH (peering only routes from many exchange points) | http://lg.pch.net | OK |
| 4250 | Alentus Corporation | http://lg.as4250.net/ | OK |
| 4538 | CERNET | http://bgpview.6test.edu.cn/cgi-bin/querybgp.pl | OK |
| 4635 | Hong Kong Internet eXchange | http://www.hkix.net/hkix/hkixlg.html | OK |
| 4766 | KORNET | http://looking.kornet.net/looking/lookingView.jsp | OK |
| 4802 | iiNet | http://looking-glass.iinet.net.au/lg/ | OK |
| 4841 | Zonasa | http://looking-glass.zonasa.com/cgi-bin/lg.pl | FAILED 06/20/08 |
| 5006 | Onvoy | http://lg.onvoy.net/cgi-bin/bgplg | OK |
| 5056 | netINS | http://rr.netins.net/lg/lg.cgi | OK |
| 5377 | Taide | http://looking-glass.taide.net/ | OK |
| 5390 | EuroNet | http://lg.euronet.nl/ | OK |
| 5400 | BT - British Telecom | http://lg.bt.net/ | OK |
| 5408 | Greek Research & Technology Network | http://netmon.grnet.gr/lg.shtml | OK |
| 5413 | PIPEX | http://bgp.pipex.net/lg | FAILED 06/20/08 |
| 5421 | University of Sofia (Sofia, Bulgaria) | http://lg.uni-sofia.bg | FAILED 06/20/08 |
| 5459 | LINX - London InterNet eXchange | https://www.linx.net/www_public/our_network/network_tools/ | FAILED 06/20/08 |
| 5511 | OpenTransit | https://lg.opentransit.net/cgi-bin/LG/lg-networks.cgi | OK |
| 5585 | Israeli Internet eXchange | http://www.isoc.org.il/iix/2x_looking_glass.html | OK |
| 5617 | TPNET | http://lg.tpnet.pl/ | OK |
| 5650 | Electric Lighwave | http://ptlduh00.eli.net/cgi-bin/spy.cgi | FAILED 06/20/08 |
| 6315 | XMission | http://stats.xmission.com/lg | OK |
| 6373 | Opus One | http://www.opus1.com/www/looking.html | OK |
| 6395 | Broadwing | http://lg.broadwing.net/looking/ | FAILED 06/20/08 |
| 6453 | Teleglobe | http://lg.teleglobe.net/ | OK |
| 6461 | AboveNet | http://lg.above.net/ | OK |
| 6505 | Equant Chile | http://pit.orange-ftgroup.cl/ | OK |
| 6509 | CA*net 4 | http://dooka.canet4.net/lg/lg.php | OK |
| 6661 | P&T Luxembourg | http://www2.pt.lu/lg/ | OK |
| 6667 | EUnet | http://www.eunetip.net/look.shtml | OK |
| 6695 | DE-CIX | http://lg.de-cix.net/cgi-bin/index.cgi | OK |
| 6730 | Sunrise | http://debby.sunrise.ch/lg/lg.cgi.html | OK |
| 6731 | Comstar | http://noc.comstar.ru/lg/lg.html | FAILED 06/20/08 |
| 6762 | Seabone | http://etabeta.noc.seabone.net/cgi-bin/lg.pl | OK |
| 6772 | Improware AG | http://stats.imp.ch/lg/lg.cgi | OK |
| 6802 | NREN - Bulgaria | http://luna.acad.bg/lg | OK |
| 6886 | INTS | http://noc.ints.net/trace/ | OK |
| 6939 | Hurricane Electric | http://lg.he.net/ | OK |
| 7474 | Optus | http://looking-glass.optus.net.au/ | OK |
| 7481 | Taiwan IX (TWIX) | http://www.twix.net/probe/nmsprobe.html | OK |
| 7543 | Pacific Internet | http://mrtg.zipworld.net/zip-lg.html | FAILED 06/20/08 |
| 7718 | TransACT | http://looking-glass.transact.net.au | OK |
| 8001 | Net Access | http://eng.nac.net/lookingglass/lg.html | OK |
| 8015 | VISI | http://noc.visi.com/lg | OK |
| 8190 | Viatel | http://lg.viatel.net/lg/lgform.cgi | OK |
| 8196 | Claranet | http://lg.de.clara.net/ | OK |
| 8218 | Neotelecoms/Eunetworks | http://lg.as8218.eu | OK |
| 8235 | TIX - Zurich | http://looking-glass.tix.ch/cgi-bin/looking-glass.cgi | FAILED 06/20/08 |
| 8258 | ElVisti | http://www2.visti.net/lg/lg.html | OK |
| 8331 | RiNet | http://lg.rinet.ru/ | OK |
| 8342 | RTComm.RU (Rostelecom) | http://lg.rtcomm.ru/ | OK |
| 8343 | Doris UA | http://noc.skif.net/lg/ | OK |
| 8365 | MANDA | http://lg.man-da.de/ | OK |
| 8402 | Corbina Telecom | http://noc.corbina.net/usr-cgi/lg.pl | OK |
| 8422 | NetCologne | http://plg.netcologne.de/lg/ | OK |
| 8437 | United Telekom Austria | http://lg.net.uta.at/ | FAILED 06/20/08 |
| 8468 | Entanet | http://lg.enta.net/ | OK |
| 8493 | Urbanet | https://noc.urbanet.ch/cgi-bin/lg.pl | FAILED 06/20/08 |
| 8508 | Silesian University of Technology, Computer Center | http://lg.silweb.pl | OK |
| 8515 | DataForce | http://lg.df.ru/ | OK |
| 8563 | DirectNet Telecom | http://isp.dn.ru/cgi-bin/lg.pl | FAILED 06/20/08 |
| 8631 | MSK-IX | http://www.msk-ix.ru/eng/glass/ | FAILED 06/20/08 |
| 8657 | Marconi Internet Direct | http://glass.cprm.net/cgi-bin/lg.cgi | OK |
| 8664 | ICM | http://www.net.icm.edu.pl/lg/ | OK |
| 8672 | Orbitel (Sofia, Bulgaria) | http://support.orbitel.bg/tech-support/looking-glass.cgi | FAILED 06/20/08 |
| 8717 | SpectrumNet (Sofia, Bulgaria) | https://spnet.net/admin/lookingglass.phtml | OK |
| 8736 | Grapes Communications | http://noc.grapesnetservices.it/new_lg_p.html | FAILED 06/20/08 |
| 8745 | Bulgarian Academy of Sciences | http://www.bas.bg/lg/ | FAILED 06/20/08 |
| 8758 | Dolphins Network Systems | http://www.dolphins.ch/network/lg.en.php | FAILED 06/20/08 |
| 8779 | Khmelnitsk Infocom | http://noc.ic.km.ua/cgi-bin/lg.cgi | OK |
| 8795 | Mobikom (Sofia, Bulgaria) | http://home.mobikom.net/cgi-bin/nlg.pl | FAILED 06/20/08 |
| 8851 | Edge Telecom | http://lg.inweb.co.uk | OK |
| 8866 | BTC Net (Sofia, Bulgaria) | http://www.btc-net.bg/lg1/lg.pl | FAILED 06/20/08 |
| 8890 | ICM | http://www.net.icm.edu.pl/lg/ | OK |
| 8903 | BT Spain | http://vasili.bt.es/lg.html | OK |
| 9019 | Datagrama | http://noc.datagrama.net/lg/ | OK |
| 9044 | SolNet | http://stats.solnet.ch/looking-glass/lg.html | OK |
| 9070 | ITD Net | http://lg.itdnet.net | OK |
| 9120 | Cohaesio A/S | http://lg.cohaesio.net/ | OK |
| 9127 | NetIsSat (Sofia, Bulgaria) | http://www.netissat.bg/cgi-bin/lg.pl | FAILED 06/20/08 |
| 9199 | Renam | http://lg.renam.md/ | OK |
| 9198 | KAZTELECOM-AS | http://lg.online.kz/ | OK |
| 9202 | ZaporozhSvyazServise | http://www.zssm.zp.ua:8101/cgi-bin/lg/lg.cgi | OK |
| 9370 | Sakura Internet | http://as9370.bgp4.jp/ | OK |
| 9371 | Sakura Internet | http://as9371.bgp4.jp/ | OK |
| 9443 | Primus Telecom Australia | http://looking-glass.iprimus.net.au/lg | OK |
| 9607 | BroadBand Tower - Japan | http://lg01.colo01.bbtower.ad.jp/ | OK |
| 9625 | PacNet | http://noc.pacific.net.sg/looking-glass/ | FAILED 06/20/08 |
| 9722 | PIPE Networks (QLD) | http://www.pipenetworks.com/lg/ | OK |
| 9831 | Unigate | http://lg.unigate.net.tw/ | OK |
| 9894 | PIPE Networks (ACT) | http://www.pipenetworks.com/lg/ | OK |
| 11260 | Eastlink | http://lg.eastlink.ca/ | OK |
| 11608 | Accretive Networks | http://www.accretive-networks.net/lg.html | OK |
| 12294 | Technological Systems JV | http://www.tsua.net/stor/lg.html | OK |
| 12336 | NetBG (Sofia, Bulgaria) | http://www.netbg.com/lg/lg.pl | FAILED 06/02/08 |
| 12369 | UkrSat | http://support.ukrsat.com/stats/lg.html | OK |
| 12381 | Widell.Net | http://widell.net/cgi-bin/nph-wlg | OK |
| 12412 | DTR | http://lg.dtr.fr/ | OK |
| 12530 | Golden Telecom | http://noc.kiev.sovam.com/lg.dhtml | OK |
| 12593 | UkrHub.net | http://lg.ukrhub.net/lg.html | FAILED 06/02/08 |
| 12654 | RIPE NCC RIS Project | http://www.ris.ripe.net/cgi-bin/lg/index.cgi | OK |
| 12670 | Completel | http://lg.completel.fr/ | OK |
| 12713 | OTEGLOBE | http://www.nmc.oteglobe.net/cgi-bin/clg/lg.pl | FAILED 06/02/08 |
| 12767 | PragoNet | http://nms1.prago.net/public-cgi-bin/lg/lg.cgi | OK |
| 12859 | Business Internet Trends | http://lg.bit.nl/ | OK |
| 12867 | Bulgaria Online (Sofia, Bulgaria) | http://gandalf.online.bg/look/ | OK |
| 12883 | Ucomline | http://noc.ucomline.net/ | OK |
| 12897 | HEAG MediaNet | http://lg.heagmedianet.de/ | OK |
| 12902 | Luna.nl | http://noc.luna.nl/lg/ | FAILED 06/02/08 |
| 12956 | Telefonica | http://lg.ri.telefonica-data.net/cgi-bin/lg.pl | OK |
| 12969 | Vodafone Iceland | http://lg.vodafone.is/ | OK |
| 13030 | Init Seven AG | http://www.init7.net/looking-glass/ | OK |
| 13092 | Belgrade University Computer Centre | http://netis.rcub.bg.ac.yu/cgi-bin/LookingGlass/lg.pl | FAILED 06/02/08 |
| 13105 | LUKOIL-INFORM | http://noc.linia.ru/cgi-bin/lg.pl | FAILED 06/02/08 |
| 13115 | Home of the Brave | http://home.of.the.brave.de/Internet-Services/Looking_Glass/ | FAILED 06/02/08 |
| 13193 | Nerim | http://stats.nerim.net/nav/lg/ | OK |
| 13194 | Bite GSM | http://www.tinklomatas.lt/LookingGlass/ | OK |
| 13249 | ITSystems ISP | http://lg.itsinternet.net/ | OK |
| 13268 | Multicom Ltd | http://proxy.multicom.bg:88/cgi-bin/lg/lg.pl | FAILED 06/20/08 |
| 13273 | France Teaser | http://looking-glass.teaser.fr/ | OK |
| 13284 | Brain Technology - Playnet - Italy | http://lg.playnet.it | OK |
| 13645 | BroadbandONE / Host.net | http://lg.host.net | OK |
| 15389 | Faroese Telecom | http://netcon.internet.fo/cgi-bin/lg.cgi | OK |
| 15396 | ICM | http://www.net.icm.edu.pl/lg/ | OK |
| 15474 | RHnet - Iceland University Research Network | http://www.rhnet.is/cgi-bin/nlg/lg.cgi | OK |
| 15497 | ColoCall | http://noc.colocall.net/lg.html | OK |
| 15605 | Lina.Net | http://lg.linanet.is/ | OK |
| 15645 | Ukrainian Exchange UA-IX | http://lg.ix.net.ua/ | OK |
| 15658 | INET Communications | http://www.inetcomm.net/lg.shtml | FAILED 06/02/08 |
| 15687 | Novo Nordisk IT A/S | http://traceroute.nnit.com/cgi-bin/bgp.cgi | FAILED 06/02/08 |
| 15703 | TrueServer | http://noc.trueserver.nl/cgi-bin/lg.pl | FAILED 06/02/08 |
| 15744 | Silesian University of Technology, Computer Center | http://lg.silweb.pl | OK |
| 15756 | Caravan ISP | http://noc.caravan.ru/cgi-bin/lg.cgi | OK |
| 15772 | WNet | http://support.wnet.ua/lg.php | OK |
| 15785 | Teleport SV | http://lg.teleportsv.net/ | FAILED 06/20/08 |
| 15837 | MainzKom Telekommunikation GmbH | http://looking-glass.rhein-main-saar.net/ | FAILED 06/02/08 |
| 15968 | Netpilot | http://noc.netpilot.net/cgi-bin/lg/lg.pl | OK |
| 16215 | Genotec Internet Consulting AG | http://lg.as16215.net/ | OK |
| 16260 | XchangePoint | http://www.xchangepoint.net/tools/looking-glass.php | FAILED 06/02/08 |
| 16265 | LeaseWeb | http://noc.leaseweb.com/ | OK |
| 16397 | .comDOMINIO | http://lg.comdominio.com.br | OK |
| 16422 | NEWskies | http://www.newskies.net/lg/ | OK |
| 17175 | NEWskies | http://www.newskies.net/lg/ | OK |
| 17557 | Pakistan Internet Exchange | http://www.pie.net.pk/cgi-bin/lg.pl | FAILED 06/02/08 |
| 17801 | Pacific Internet (Ausbone) | http://mrtg.zipworld.net/glass.html | FAILED 06/02/08 |
| 17999 | PIPE Networks (SA) | http://www.pipenetworks.com/lg/ | OK |
| 18221 | TSN Internet | http://looking-glass.tsn.cc | OK |
| 18398 | PIPE Networks (NSW) | http://www.pipenetworks.com/lg/ | OK |
| 19214 | Centauri Communications | http://lg.centauricom.com/lg/lg.cgi | OK |
| 20080 | AMPATH | http://loadrunner.uits.iu.edu/~routerproxy/ampath/ | OK |
| 20485 | TransTeleCom | http://lg.transtk.ru/ | OK |
| 20555 | WSISiZ | http://noc.wsisiz.edu.pl/lg/lg.cgi | OK |
| 20657 | Atlantis BG Ltd. (Sofia, Bulgaria) | http://www.atlantis.bg/index.php?id=238 | FAILED 06/02/08 |
| 20685 | Evrocom | http://www.evrocom.net/bg/support/lg.html | OK |
| 20766 | Gitoyen | https://www.gitoyen.net/lg/ | FAILED 06/20/08 |
| 20773 | Hosteurope | http://latency.hosteurope.de/lg/ | OK |
| 20932 | IP-MAN/SIG | http://lg.ip-man.net/ | OK |
| 20965 | GEANT | http://stats.geant.net/lg/lgform.cgi | FAILED 06/20/08 |
| 21083 | N-IX | http://www.n-ix.net/lg.html | OK |
| 21131 | Sacura Telecom | http://noc.cv.ua/glass.html | OK |
| 21142 | PragoNet | http://nms1.prago.net/public-cgi-bin/lg/lg.cgi | OK |
| 21219 | DataGroup (NewLine) | http://lg.newline.net.ua/ | OK |
| 21230 | Mnet | http://lg.mnet.bg/ | OK |
| 21238 | LIPEX | http://www.lipex.net/looking_glass/ | OK |
| 23504 | Speakeasy | http://lg.speakeasy.net/ | OK |
| 23649 | NEWskies | http://www.newskies.net/lg/ | OK |
| 23741 | PIPE Networks (TAS) | http://www.pipenetworks.com/lg/ | OK |
| 23745 | PIPE Networks (VIC) | http://www.pipenetworks.com/lg/ | OK |
| 24557 | AussieHQ | http://looking-glass.aussiehq.net.au | OK |
| 24770 | UnixSol (Sofia, Bulgaria) | http://www.unixsol.org/lg | OK |
| 24796 | NaMeX - Nautilus Mediterranean eXchange | http://www.namex.it/lg.php | OK |
| 24971 | Master Internet | http://www.master.cz/lg | OK |
| 25137 | nfsi telecom | http://lg.nfsi.pt/ | OK |
| 25358 | Novso | http://www.as25358.net/lg/ | OK |
| 25409 | AlsysNet | http://lg.alsysdata.net | OK |
| 25462 | ReTN | http://lg.retn.net/ | OK |
| 25528 | Vodatel HR | http://lg.vodatel.hr | OK |
| 25577 | C4L | http://lg.c4l.co.uk | OK |
| 28809 | Nauka-Svyaz | http://lg.naukanet.ru/ | OK |
| 28929 | ASDASD srl (Italy) | http://as28929.net/lg/ | OK |
| 28968 | Eurasia Telecom | http://www.eut.ru/client/lg.html | OK |
| 29305 | OF.PL Poland | http://lg.of.pl/ | OK |
| 29266 | Danish Broadcast Corporation | http://lg.dr.dk/ | OK |
| 29527 | Othello Technology Systems Ltd. | http://www.as29527.net/lg/ | OK |
| 29632 | NetAssist | http://noc.netassist.kiev.ua/lg.php | OK |
| 29686 | Probe Networks | http://probe-networks.de/lg/ | OK |
| 30653 | Exobit Networks | http://noc.exobitnetworks.com/lg/lg.cgi | OK |
| 30781 | Jaguar Network | http://www.as30781.net/lg/ | OK |
| 30789 | Sellinet | http://sellinet.net/look | OK |
| 30795 | INTRON Networks | http://lg.intron.net | OK |
| 30890 | Evolva Telecom | http://lg.evolva.ro | OK |
| 30975 | Telewizja Kablowa Koszalin sp. z o. o. | http://sloniewski.pl/lg/ | OK |
| 31554 | RomNet altFEL | http://lg.romnet.org | OK |
| 33843 | interscholz Internet Services | http://noc.interscholz.net/lg/ | OK |
| 33868 | Perfekt | http://lg.net.perfekt.pl | OK |
| 34043 | Romania Internet Security Systems | http://lg.riss.ro/ | OK |
| 34159 | Camel Network | http://camel.net.uk/lg/ | FAILED 06/20/08 |
| 34501 | Romania Internet Security Systems | http://lg.riss.ro/ | OK |
| 34688 | Maverick | http://lg.maverick.com.pl/ | OK |
| 35320 | EuroTransTelecom | http://lg.ett.com.ua/ | OK |
| 39122 | Blacknight Internet Solutions | http://www.39122.as | OK |
| 39397 | Az.StarNet | http://noc.simsiz.az/lg | OK |
| 41075 | ATW Internet | http://atw.co.hu/lg | OK |
| 41095 | IPTP Networks | http://www.iptp.net/lg.php | OK |
| 42227 | Airwire | http://lg.as42227.net/ | OK |
| 43646 | Smartjog (TDF Group) | http://www.as43646.net/tools/ | OK |
| 43782 | DARS Telecom | http://darstelecom.ru/lg/ | OK |
| 44814 | BulgarTel | http://lg.bulgartel.bg/ | OK |
| 48415 | AirExpress (Zhytomyr, Ukraine) | http://lg.airexpress.net.ua/ | OK |
| 48896 | dhosting.pl Sp. z o.o. | http://lg.dhosting.pl/ | OK |