https://isbgpsafeyet.com/ Is BGP safe yet? No. Border Gateway Protocol (BGP) is the postal service of the Internet. It's responsible for looking at all of the available paths that data could travel and picking the best route. Unfortunately, it isn't secure, and there have been some major Internet disruptions as a result. But fortunately there is a way to make it secure. ISPs and other major Internet players (Sprint and others) would need to implement a certification system, called RPKI. Test your ISP Read FAQ Latest updates * February 3, 2026 - Sparkle (AS6762), a global Tier-1 transit provider, now rejects RPKI-invalid prefixes (source). * October 1, 2025 - Energotel (AS31117), major transit operator in Slovakia, now filters RPKI invalid routes (source). * August 28, 2025 - Bell Canada (AS577) One of the largest ISPs in Canada, now filters RPKI invalid routes received by its network ( source) * Febrary 22, 2024 - Deutsche Telekom (AS3320) One of the largest ISPs in Europe, now filters RPKI invalid routes received by its global network. (source) * January 24, 2024 - Verizon (AS701) one of the largest ISPs in the US, has fully deployed RPKI Origin Validation across their network. * April 5, 2023 - Liberty Global (AS6830) One of the largest ISPs in Europe, now filters RPKI-OV invalid routes on its EBGP edge. ( source) * October 19, 2022 - Microsoft (AS8075) has deployed RPKI Origin Validation on all their peers. (source) * June 27, 2022 - Orange International Carrier (AS5511) has fully deployed RPKI Origin Validation on their global worldwide network. (source) * March 15, 2022 - KPN (AS1136), the largest Internet provider in the Netherlands, now rejects RPKI-invalid BGP routes on its EBGP edge. (source) * June 3, 2021 - NOS Communicacoes (AS2860), a leading Internet Service Provider in Portugal, has signed its prefixes and is dropping invalids. * May 20, 2021 - Comcast (AS7922), one of the largest Internet Service Providers in the US, has signed its prefixes and is now dropping invalids over all BGP sessions. (source) * March 26, 2021 - Lumen (AS3356), the largest worldwide transit backbone, is now dropping invalids over all BGP sessions. (source ) * March 15, 2021 - Vocus (AS4826), a leading Australian ISP, has signed its prefixes with RPKI and is now dropping invalids. ( source) * March 1, 2021 - HEANet (AS1213) Ireland's National Research & Education Network deploys the RPKI Infrastructure on its IP Network. (source) * February 26, 2021 - TDC (AS3292) the main operator in Denmark has implemented RPKI Origin Validation and is signing its prefixes. ( source) * February 1, 2021 - Sprint / T-Mobile (AS1239) now filters all RPKI Invalid routes from settlement-free peers. (source) * January 14, 2021 - Amazon Web Services (AS16509) has signed their prefixes and deployed RPKI Origin Validation. (source) * December 14, 2020 - Belnet (AS2611) NREN and first Belgian ISP to implement RPKI and drop invalid routes. (source) * December 1, 2020 - RETN (AS9002) has deployed RPKI-based BGP route origin validation. (source) * September 14, 2020 - HOPUS (AS44530) is now filtering all eBGP sessions using RPKI ROV. (source) * September 2, 2020 - Netflix has deployed RPKI globally and is dropping invalid prefixes. (source) * September 1, 2020 - Swisscom is fully dropping RPKI invalids since the end of July. (source) * August 26, 2020 - Google is currently deploying RPKI. The network operator signed more than 90% of its prefixes. * August 7, 2020 - HKIX, an Internet Exchange in Hong Kong deployed RPKI validation on all its member sessions and is now dropping RPKI invalids on their route servers. (source) * July 24, 2020 - Telstra AS1221, Australia's leading telecommunications and technology company, now filters RPKI invalids. (source) * July 13, 2020 - Chilean Government Network (Red de Conectividad del Estado) at AS17147 successfully deployed RPKI filtering and drops invalid prefixes. (source) * July 6, 2020 - GR-IX, the Greek Internet Exchange, is now dropping RPKI invalids on their route servers (source) * June 16, 2020 - Hurricane Electric AS6939, a major transit provider deployed RPKI filters (source) * June 16, 2020 - AnacondaWeb AS265656, an ISP and hosting provider from Temuco (Chile), successfully deployed RPKI signing and filtering. (source) * June 5, 2020 - Cogent AS174, the 3rd largest transit provider, now filters all RPKI invalids * June 1, 2020 - Mobicom, the main transit provider in Mongolia, deployed RPKI (source) * May 18, 2020 - Dhiraagu, a Maldivian ISP deployed RPKI (source) * May 10, 2020 - Terrahost, a Norwegian dedicated and cloud server provider deployed RPKI (source) * May 7, 2020 - LINX, an Internet Exchange based in the United Kingdom drops RPKI invalids (source) * May 7, 2020 - MIXP, an Internet Exchange based in Mauritius signed and drops RPKI invalids (source) * May 6, 2020 - Asergo, a Danish cloud provider deployed RPKI ( source) * May 5, 2020 - GTT is now filtering all their sessions (source) * May 5, 2020 - WorldStream, a cloud provider is working on RPKI implementation (source) * May 4, 2020 - Cablenet Cyprus deployed RPKI * April 27, 2020 - Acorus/Volterra is deploying RPKI (source) * April 24, 2020 - Kapsi, a Finnish ISP, deployed RPKI (source) * April 24, 2020 - Cyta, a Cyprus ISP, deployed RPKI * April 23, 2020 - Jaguar Networks, deployed RPKI (source) * April 22, 2020 - Scaleway, a cloud provider, deployed RPKI in March 2020 (source) * April 20, 2020 - Gigabit ApS, a Danish ISP, deployed RPKI (source ) * April 20, 2020 - USI Fiber currently working on RPKI implementation (source) * April 19, 2020 - Aussie Broadband plans to support RPKI "shortly" (source) + Show all Status Displaying 31 major operators + Show all + Show ASN column Name Type Details Status ASN ? Lumen transit signed + safe 3356 filtering Arelion (formerly Telia) transit signed + safe 1299 filtering Cogent transit signed + safe 174 filtering NTT transit signed + safe 2914 filtering Sparkle transit signed + safe 6762 filtering Hurricane Electric transit signed + safe 6939 filtering GTT transit signed + safe 3257 filtering TATA transit signed + safe 6453 filtering Zayo transit signed + safe 6461 filtering PCCW transit signed + safe 3491 filtering Vodafone transit signed + safe 1273 filtering RETN transit partially signed safe 9002 + filtering Orange transit signed + safe 5511 filtering Telstra International transit signed + safe 4637 filtering Telefonica/Telxius transit signed + safe 12956 filtering Comcast ISP signed + safe 7922 filtering AT&T ISP signed + safe 7018 filtering Verizon ISP signed + safe 701 filtering Liberty Global transit signed + safe 6830 filtering Deutsche Telekom ISP signed + safe 3320 filtering KPN transit signed + safe 286 filtering Vocus Communications transit signed + safe 4826 filtering Core-Backbone transit signed + safe 33891 filtering Swisscom ISP signed + safe 3303 filtering Cox Communications ISP signed + safe 22773 filtering G8 transit signed + safe 28329 filtering Telstra transit signed + safe 1221 filtering Inter.link transit signed + safe 5405 filtering Orange Polska ISP signed + safe 5617 filtering T-Mobile transit partially signed safe 1239 + filtering Digi Romania ISP signed + safe 8708 filtering GEANT ISP signed + safe 20965 filtering Telekom Malaysia Berhad ISP signed + safe 4788 filtering Softdados Telecom transit signed + safe 52873 filtering Bell Canada ISP signed + safe 577 filtering Next Layer GmbH transit signed + safe 1764 filtering Charter ISP signed + safe 10796 filtering TELUS Communications ISP signed + safe 852 filtering OpenX transit signed + safe 263444 filtering FPT Telecom ISP signed + safe 18403 filtering Vocus Retail ISP signed + safe 9443 filtering Jaguar Network ISP signed + safe 30781 filtering HiNet ISP signed + safe 3462 filtering ITS Telecom transit signed + safe 28186 filtering IELO ISP signed + safe 29075 filtering Orange Polska ISP signed + safe 29535 filtering Acorus Networks ISP signed + safe 35280 filtering Virgin Media UK ISP signed + safe 5089 filtering TDC ISP signed + safe 3292 filtering Ensite Telecom transit signed + safe 28263 filtering Telenor ISP signed + safe 2119 filtering ANEXIA signed + Internetdienstleistungs transit filtering safe 47147 GmbH Biznet Networks ISP signed + safe 17451 filtering UPX TECNOLOGIA transit signed + safe 52863 filtering RCN ISP signed + safe 6079 filtering Devoli ISP signed + safe 45177 filtering NTS Workspace AG ISP signed + safe 15576 filtering MNET ISP signed + safe 8767 filtering Charter ISP signed + safe 11351 filtering Kyivstar ISP signed + safe 15895 filtering Inferno Communications transit signed + safe 207841 filtering DNA Oyj ISP signed + safe 16086 filtering Brisanet ISP signed + safe 28126 filtering Hydra Communications cloud signed + safe 25369 filtering Elisa Finland ISP signed + safe 719 filtering KPN-Netco ISP signed + safe 1136 filtering Charter ISP signed + safe 12271 filtering HOPUS transit signed + safe 44530 filtering Persis Telecom ISP signed + safe 14282 filtering ViewQwest ISP signed + safe 18106 filtering QuadraNet cloud safe 8100 CYTA ISP signed + safe 6866 filtering Trustpower ISP signed + safe 55850 filtering STARTNET transit signed + safe 52999 filtering Obenetwork ISP signed + safe 3399 filtering NOS COMUNICACOES ISP signed + safe 2860 filtering IONOS SE Cloud signed + safe 8560 filtering Energotel ISP signed+filtering safe 31117 Altibox ISP signed + safe 29695 filtering Bredband2 ISP signed + safe 29518 filtering Ziggo ISP signed + safe 33915 filtering UltraWave Telecom ISP signed + safe 262659 filtering VNET .a.s. cloud signed + safe 29405 filtering noris network AG ISP signed + safe 12337 filtering UKServers cloud signed + safe 42831 filtering August Internet ISP signed + safe 50058 filtering Cablenet Cyprus ISP signed + safe 35432 filtering Claranet ISP safe 8426 Mobicom transit filtering safe 55805 Terrahost cloud signed + safe 56655 filtering RKOM ISP signed + safe 12611 filtering Belwue ISP signed + safe 553 filtering SpaceNet ISP signed + safe 5539 filtering SysEleven transit signed + safe 25291 filtering CESNET ISP signed + safe 2852 filtering Belnet ISP signed + safe 2611 filtering A2B Internet ISP signed + safe 51088 filtering Cloudflare cloud signed + safe 13335 filtering WOBCOM ISP signed + safe 9136 filtering MilkyWan ISP signed + safe 2027 filtering HostDime.com Inc cloud safe 33182 xs4all cloud signed + safe 3265 filtering O.P.T New Caledonia ISP signed + safe 18200 filtering Netinternet cloud signed + safe 51559 filtering Netwerkvereniging ColoClue ISP signed + safe 8283 filtering TNG Stadtnetz GmbH ISP signed + safe 13101 filtering TelHi Corporation (Infal) ISP signed + safe 150369 filtering Aussie Broadband ISP signed + safe 4764 filtering Dhiraagu ISP signed + safe 7642 filtering Rozint Ltd Co ISP signed + safe 21738 filtering Microsoft cloud signed + safe 8075 filtering APIK Media cloud signed + safe 58820 filtering EdgeUno cloud signed + safe 7195 filtering Atria Convergence ISP signed + safe 24309 Technologies Ltd filtering EOLO ISP signed + safe 35612 filtering Amazon cloud signed + safe 16509 filtering Gis Telecom ISP signed + safe 264130 filtering HEAnet ISP signed + safe 1213 filtering Accuris Technologies ISP signed + safe 52210 filtering Via Radio Dourados transit signed + safe 61785 filtering Zen Internet ISP filtering safe 13037 ACT Fibernet ISP signed + safe 18209 filtering Get (Telia Norway) ISP signed + safe 41164 filtering Karabro AB ISP signed + safe 51519 filtering Netflix cloud signed + safe 2906 filtering C1V hosting ISP signed + safe 212271 filtering IDNet ISP safe 12496 BlackGATE ISP signed + safe 201290 filtering Afrihost ISP safe 37611 EBOX ISP signed + safe 1403 filtering Aura Fiber ISP safe 204274 Bharat Datacenter Cloud signed + safe 151704 filtering komro GmbH ISP signed + safe 29413 filtering VoiceHost ISP signed + safe 31472 filtering Neptune Networks transit signed + safe 21700 filtering Gigabit DK ISP signed + safe 60876 filtering Iver Norge AS ISP safe 49409 Clearfly Communications ISP signed + safe 27400 filtering Tech Futures ISP signed + safe 394256 filtering DK Hostmaster cloud signed + safe 39839 filtering Wikimedia Foundation cloud signed + safe 14907 filtering Wifx ISP signed + safe 199811 filtering Stellar Technologies cloud signed + safe 14525 filtering Neptune Internet ISP signed + safe 151660 filtering Hi3G ISP signed + safe 44034 filtering Scaleway cloud signed + safe 12876 filtering Turksat ISP signed + safe 47524 filtering NetCup cloud signed + safe 197540 filtering Kerfuffle Cloud signed + safe 35008 filtering sc Network ISP signed + safe 53343 filtering Verizon Business ISP signed + safe 6167 filtering Iliad Italia ISP signed + safe 29447 filtering Datapark ISP safe 21040 PROMAX ISP safe 31423 ASERGO cloud signed + safe 30736 filtering Inter Connects Inc cloud safe 46805 Redder ISP signed + safe 33986 filtering Freethought Internet cloud signed + safe 41000 Limited filtering Green Mini host cloud signed + safe 205668 filtering Parknet ISP signed + safe 197301 filtering Kviknet DK ISP signed + safe 204151 filtering Copper Valley Long Distance ISP signed + safe 20259 filtering Dream Fusion - IT Services cloud signed + safe 39384 Lda filtering TL Group cloud safe 263812 Rose Telecom ISP signed + safe 54681 filtering Nutrien ISP signed + safe 393891 filtering Powerhosting Cloud signed + safe 60422 filtering AnacondaWeb ISP signed + safe 265656 filtering Cobaso Cloud safe 399866 BOXIS cloud signed + safe 201199 filtering Skhron cloud signed + safe 215467 filtering WhiteHat ISP signed + safe 51999 filtering Raiola Networks cloud signed + safe 56958 filtering Ssmidge Technologies ISP signed + safe 60900 filtering AVS ISP transit signed + safe 210464 filtering andrewnet ISP signed + safe 211562 filtering Bryan Barbolina trading as cloud signed + safe 213268 Cloudwebservices filtering Valex Cloud LLC (VALEX) ISP signed + safe 19468 filtering Chilean Government Network signed + (Red de Conectividad del ISP filtering safe 17147 Estado) Zaledia Networks ISP signed + safe 207149 filtering Bristol Bay Telephone Coop ISP signed + safe 397388 filtering NNET ISP signed + safe 142582 filtering Ursin Filli ISP signed + safe 202427 filtering de.theirs ISP signed + safe 200242 filtering VDX Networks ISP signed + safe 208723 filtering AR Informatik AG (Kanton ISP signed + safe 211452 Appenzell Ausserrhoden) filtering PJSC MegaFon transit signed partially 31133 safe signed + partially IIJ transit filtering peers safe 2497 only signed + partially OCN ISP filtering peers safe 4713 only Vivacom ISP signed partially 8866 safe RoyaleHosting BV Cloud signed partially 212477 safe Equinix Metal Cloud signed + partially 54825 filtering peers safe Janet ISP partially signed partially 786 + filtering safe CDN77 cloud signed partially 60068 safe DFN Deutsches ISP partially signed partially 680 Forschungsnetz + filtering safe Digital Energy Technologies cloud signed + partially 61317 Limited (Global) filtering peers safe ColoCrossing cloud filtering partially 36352 safe Google cloud signed partially 15169 safe Worldstream ISP signed partially 49981 safe Triolan ISP filtering partially 13188 safe LeapSwitch Networks cloud filtering partially 132335 safe DigitalOcean cloud filtering peers partially 14061 only safe GTHost cloud filtering partially 63023 safe signed + partially Zayo France transit filtering peers safe 8218 only EE ISP filtering partially 12576 safe Plusnet ISP filtering partially 6871 safe volumedrive cloud filtering partially 46664 safe MadeIT cloud filtering partially 54455 safe Pacswitch ISP filtering partially 55536 safe PJSC RosTelecom transit unsafe 12389 TransTelecom transit unsafe 20485 SingTel transit unsafe 7473 Algar Telecom transit unsafe 16735 Globenet transit unsafe 52320 Telefonica Vivo transit unsafe 10429 Internexa transit unsafe 262589 Angola Cables transit unsafe 37468 China Telecom transit unsafe 4809 Oi ISP unsafe 7738 KT (Fixed Line) ISP unsafe 4766 Vivo GVT ISP unsafe 18881 Embratel transit unsafe 4230 Telekom Hungary ISP signed unsafe 5483 Eletronet transit unsafe 267613 Windstream Communications ISP unsafe 7029 TIM Brasil ISP unsafe 26615 MOB Telecom transit unsafe 28598 Optus transit unsafe 7474 Seabras transit unsafe 13786 SK Broadband ISP unsafe 9318 TPG ISP unsafe 7545 Durand transit unsafe 22356 Optimum ISP unsafe 6128 Softbank ISP unsafe 17676 Commcorp transit unsafe 14840 Superloop Australia transit unsafe 38195 TurkTelekom ISP unsafe 9121 Shaw Communications ISP unsafe 6327 M247 cloud unsafe 9009 A1 Telekom Austria ISP unsafe 8447 Wave Broadband ISP unsafe 11404 W I X NET DO BRASIL cloud unsafe 53013 Telecom Argentina ISP unsafe 7303 Fastweb ISP unsafe 12874 KDDI ISP unsafe 2516 American Tower Brasil transit unsafe 23106 Vogel transit unsafe 25933 TIM ISP unsafe 3269 AAPT Limited ISP unsafe 2764 TELY transit unsafe 53087 Rogers ISP unsafe 812 British Telecommunications ISP unsafe 2856 Vodafone Espana ISP unsafe 12430 Sunrise Communications AG ISP unsafe 6730 SIA Tet ISP unsafe 12578 Init7 (Schweiz) AG ISP signed unsafe 13030 1&1 Versatel ISP partially signed unsafe 8881 PLDT ISP unsafe 9299 Frontier Communications of ISP unsafe 5650 America (FCA) VNPT cloud unsafe 45899 Forte Telecom transit unsafe 263009 Alta Rede transit unsafe 28260 Vodafone DE ISP unsafe 3209 Nianet A/S ISP signed unsafe 31027 Globe Telecom ISP unsafe 4775 HKBN ISP unsafe 9269 Claro Argentina ISP unsafe 11664 Copel Telecom transit unsafe 14868 Vocus Group NZ ISP unsafe 9790 ACONET transit unsafe 1853 Wirelink transit unsafe 28368 SFR ISP unsafe 15557 TASCOM transit unsafe 52871 WOW! ISP unsafe 12083 Hutchison Drei Austria ISP unsafe 25255 K2 Telecom transit unsafe 53181 NFOrce cloud signed unsafe 43350 Psychz Networks cloud unsafe 40676 SuddenLink ISP unsafe 19108 Delta Telecom cloud unsafe 29049 Cogeco ISP unsafe 7992 Silknet ISP signed unsafe 35805 NIB India ISP unsafe 9829 Reliance Jio ISP signed unsafe 55836 Volia cloud unsafe 25229 Taiwan Fixed Network ISP signed unsafe 9924 Beltelecom ISP unsafe 6697 Hetzner Online cloud signed unsafe 24940 eww ag transit unsafe 21013 Videotron ISP unsafe 5769 ASAP Telecom transit unsafe 264144 G-Core Labs cloud unsafe 199524 Blix Solutions AS cloud unsafe 50304 Telenet ISP unsafe 6848 2degrees ISP unsafe 23655 NetCologne ISP unsafe 8422 Vodafone IT ISP unsafe 30722 Shentel ISP unsafe 4922 Proximus ISP unsafe 5432 FasterNET ISP unsafe 28580 MasMovil ISP unsafe 15704 Turknet ISP unsafe 12735 iiNet Limited ISP unsafe 4739 Siminn ISP unsafe 6677 IBM Cloud cloud unsafe 36351 PenTeleData ISP signed unsafe 3737 Selectel Ltd cloud unsafe 49505 Total Server Solutions cloud unsafe 46562 Vodafone Idea ISP unsafe 55410 IP Converge Data Services cloud unsafe 23930 Inc. xneelo cloud unsafe 37153 Nine Internet Solutions cloud signed unsafe 29691 HotNet Internet Services ISP unsafe 12849 Pakistan Telecom Company ISP unsafe 45595 Limited Radore Veri Merkezi cloud unsafe 42926 Hizmetleri SaskTel ISP signed unsafe 803 JCOM ISP unsafe 9824 A1 Belarus ISP unsafe 42772 Maxihost cloud unsafe 262287 Selectel MSK cloud unsafe 50340 NetCom BW ISP unsafe 41998 Continent 8 LLC cloud unsafe 14537 Synapsecom Telecoms cloud unsafe 8280 Rackforest Zrt cloud signed unsafe 62214 A3 Sverige ISP unsafe 45011 Deutsche Glasfaser ISP unsafe 60294 Vodafone Portugal ISP unsafe 12353 TekSavvy ISP unsafe 5645 SkyCable ISP unsafe 23944 Cybernet Pakistan ISP unsafe 9541 Sonic ISP signed unsafe 46375 CSL IDC cloud unsafe 9891 Telefonica Peru ISP unsafe 6147 MTS Belarus ISP unsafe 25106 TheGigabit cloud unsafe 55720 TOT-NET ISP unsafe 23969 ST-BGP cloud unsafe 46844 MEO Portugal ISP unsafe 3243 UK-2 Limited cloud unsafe 13213 SKY Brasil ISP unsafe 11338 Ovnicom cloud unsafe 27796 Locaweb cloud unsafe 27715 ARTNET cloud unsafe 197155 K-NET ISP unsafe 24904 Free SAS ISP signed unsafe 12322 Bouygues Telecom ISP unsafe 5410 Oy Creanova Hosting cloud unsafe 51765 Solutions Ltd GSL Networks cloud unsafe 137409 Sejong Telecom ISP unsafe 4670 Digi ISP unsafe 20845 O2 Broadband ISP unsafe 35228 Vodafone Hungary ISP unsafe 21334 Networx Bulgaria ISP unsafe 34569 FishNet cloud unsafe 43317 ArgonHost cloud unsafe 58477 OVH cloud unsafe 16276 WestHost cloud unsafe 29854 Magenta (T-Mobile) Austria ISP unsafe 8412 ALMOUROLTEC SERVICOS DE cloud unsafe 24768 INFORMATICA E INTERNET LDA Optus Microplex ISP unsafe 4804 Global IP Exchange cloud unsafe 47536 trabia network cloud signed unsafe 43289 Packetexchange cloud unsafe 58065 Alands Telekommunikation Ab ISP unsafe 3238 Amanah cloud unsafe 32489 UNMETERED cloud unsafe 54133 T-Mobile ISP signed unsafe 21928 Vodafone UK ISP unsafe 5378 Numericable ISP unsafe 21502 H4Y cloud signed unsafe 397373 MEO Portugal - Servicos de ISP unsafe 42863 Comunicacoes e Multimedia Intergrid cloud unsafe 133480 Mobilink ISP unsafe 45669 INTERSPACE-MK cloud unsafe 200899 Monkeybrains ISP unsafe 32329 Broadband Gibraltar Ltd. ISP unsafe 34803 AltusHost cloud unsafe 51430 Kingston Communications ISP signed unsafe 12390 Stadtnetz Bamberg ISP unsafe 198570 Rakuten Mobile ISP unsafe 138384 Vodafone India ISP unsafe 38266 tzulo cloud unsafe 11878 Istanbuldc Veri Merkezi cloud unsafe 197328 Sprint Personal transit unsafe 10507 Communications Systems Kaisanet Oy ISP unsafe 13170 DELTA Fiber ISP signed unsafe 15435 Phase Layer Global Networks cloud unsafe 51852 eSecureData cloud signed unsafe 11831 Axcelx cloud unsafe 33083 Starlink ISP signed unsafe 14593 rh-tec cloud signed unsafe 25560 InterNetX cloud signed unsafe 15456 Siamdata Communication cloud unsafe 56309 ProveNET ISP unsafe 263945 Demando cloud unsafe 196819 Cloud9 cloud unsafe 57814 Claro Brasil ISP unsafe 28573 TurkCell ISP unsafe 16135 Free Mobile ISP signed unsafe 51207 T-Mobile Netherlands ISP unsafe 31615 Taiwan Mobile ISP signed unsafe 24158 Leaseweb USA-LAX-11 cloud unsafe 395954 TOPNET ISP unsafe 37705 B2 Net Solutions cloud unsafe 55286 Webpass ISP unsafe 19165 T-Mobile Thuis ISP signed unsafe 50266 Globe Telecom ISP unsafe 132199 Three UK ISP unsafe 206067 University of North ISP unsafe 36850 Carolina at Chapel Hill Leaseweb USA-SFO-12 cloud unsafe 7203 Smart Communications ISP unsafe 10139 Leaseweb USA-SEA-10 cloud unsafe 396190 Leaseweb USA-WDC-01 cloud unsafe 30633 Millenicom ISP unsafe 34296 True Online ISP unsafe 17552 LG U+ (Fixed Line) ISP unsafe 17858 SK Telecom ISP unsafe 9644 NTT Docomo ISP unsafe 9605 NOS MADEIRA COMUNICACOES ISP unsafe 15457 ASAHI Net ISP unsafe 4685 LG U+ (Mobile) ISP unsafe 17853 Datacamp Limited transit signed unsafe 212238 AIRTELBROADBAND-AS-AP ISP unsafe 24560 BHARTI-MOBILITY-AS-AP ISP signed unsafe 45609 Leaseweb USA-NYC-11 cloud unsafe 396362 Leaseweb USA-PHX-11 cloud unsafe 19148 Hyperoptic ISP unsafe 56478 A1 Hrvatska ISP unsafe 29485 Wave G ISP unsafe 54858 Leaseweb USA-DAL-10 cloud unsafe 394380 CBN Broadband ISP unsafe 135478 Lanet Network ISP unsafe 47800 EHOSTIDC cloud unsafe 45382 Silknet ISP signed unsafe 15491 Coextro ISP unsafe 36445 NOS ACORES COMUNICACOES ISP signed unsafe 42580 Aktsiaselts WaveCom cloud unsafe 34702 ThorDC cloud unsafe 50613 Leaseweb USA-MIA-11 cloud unsafe 393886 KemiNet cloud unsafe 197706 Informacines sistemos ir cloud unsafe 61272 technologijos UAB Web World Ireland cloud unsafe 30900 Database By Design LLC cloud unsafe 17090 Serverfield cloud unsafe 134094 ELSERVER S.R.L cloud unsafe 52270 nobistech cloud unsafe 15003 ENAHOST s.r.o. cloud unsafe 201924 Silknet ISP signed unsafe 42082 Dynamic Hosting cloud unsafe 36077 Avative Fiber ISP unsafe 394752 Globalhost d.o.o. cloud unsafe 200698 FlokiNET cloud unsafe 200651 ByteDance cloud signed unsafe 396986 HQserv cloud unsafe 42994 WARI.NET COMUNICACIONES ISP unsafe 265708 S.R.L Asimia Damaskou cloud unsafe 205053 NUT HOST SRL cloud unsafe 264649 iServer-AS cloud unsafe 57127 SIA Bighost.lv cloud unsafe 200709 Estoxy cloud unsafe 208673 Galaxy Broadband ISP unsafe 139879 NETSTYLE A. LTD cloud unsafe 43945 Advanced Wireless Network ISP signed unsafe 133481 Co. Ltd. ComHemAB ISP unsafe 39651 Last updated on February 3, 2026 - Edit on GitHub What's a BGP hijack? To better understand why BGP's lack of security is so problematic, let's look at a simplified model of how BGP is used to route Internet packets. The Internet is not run by just one company. It's made up of thousands of autonomous systems with nodes located all around the world, connected to each other in a massive graph. In essence, the way BGP works is that each node must determine how to route packets using only what it knows from the nodes it connects with directly. For example, in the simple network A-B-C-D-E, the node A only knows how to reach E based on information it received from B. The node B knows about the network from A and C. And so forth. A BGP hijack occurs when a malicious node deceives another node, lying about what the routes are for its neighbors. Without any security protocols, this misinformation can propagate from node to node, until a large number of nodes now know about, and attempt to use these incorrect, nonexistent, or malicious routes. Click "Hijack the request" to visualize how packets are re-routed: Unsafe BGP: Normal request Laptop ISP Hijacker Transit Malicious website Cloud Web resource Hijack the request In order to make BGP safe, we need some way of preventing the spread of this misinformation. Since the Internet is so open and distributed, we can't prevent malicious nodes from attempting to deceive other nodes in the first place. So instead we need to give nodes the ability to validate the information they receive, so they can reject these undesired routes on their own. Enter Resource Public Key Infrastructure (RPKI), a security framework method that associates a route with an autonomous system. It gets a little technical, but the basic idea is that RPKI uses cryptography to provide nodes with a way of doing this validation. With RPKI enabled, let's see what happens to packets after an attempted BGP hijack. Click "Attempt to hijack" to visualize how RPKI allows the network to protect itself by invalidating the malicious routes: Safe BGP with RPKI Laptop ISP Hijacker Transit Malicious website Cloud Web resource Attempt to hijack FAQ What is BGP? Border Gateway Protocol (BGP) is the postal service of the Internet. When someone drops a letter into a mailbox, the postal service processes that piece of mail and chooses a fast, efficient route to deliver that letter to its recipient. Similarly, when someone submits data across the Internet, BGP is responsible for looking at all of the available paths that data could travel and picking the best route, which usually means hopping between autonomous systems. Learn more - Why is BGP unsafe? By default, BGP does not embed any security protocols. It is up to every autonomous system to implement filtering of "wrong routes". Leaking routes can break parts of the Internet by making them unreachable. It is commonly the result of misconfigurations. Although, it is not always accidental. A practice called BGP hijack consists of redirecting traffic to another autonomous system to steal information (via phishing, or passive listening for instance). BGP can be made safe if all autonomous systems (AS) only announce legitimate routes. A route is defined as legitimate when the owner of the resource allows its announcement. Filters need to be built in order to make sure only legitimate routes are accepted. There are a few approaches for BGP route validation which vary in degrees of trustability and efficiency. A mature implementation is RPKI. What is RPKI? With 800k+ routes on the Internet, it is impossible to check them manually. Resource Public Key Infrastructure (RPKI) is a security framework method that associates a route with an autonomous system. It uses cryptography in order to validate the information before being passed onto the routers. You can read more about RPKI on the Cloudflare blog. On May 14th 2020, Job Snijders from NTT presented a free RPKI 101 webinar. How does the test work? In order to test if your ISP is implementing BGP safely, we announce a legitimate route but we make sure the announcement is invalid. If you can load the website we host on that route, that means the invalid route was accepted by your ISP. A leaked or a hijacked route would likely be accepted too. Can even more be done? Over the years, network operators and developers started working groups to design and deploy standards to overcome unsafe routing protocols. Cloudflare recently joined a global initiative called Mutually Agreed Norms for Routing Security (MANRS). It's a community of security-minded organizations committed to making routing infrastructure more robust and secure, and members agree to implement filtering mechanisms. New voices are always appreciated. What can you do? Share this page For BGP to be safe, all of the major ISPs will need to embrace RPKI. Sharing this page will increase awareness of the problem which can ultimately pressure ISPs into implementing RPKI for the good of themselves and the general public. You can also reach out to your service provider or hosting company directly and ask them to deploy RPKI and join MANRS. When the Internet is safe, everybody wins. Share on Twitter - The logo for Cloudflare used in Cloudflare's developer documentation. (c)Cloudflare, Inc. * Privacy * Terms