ResearchIRR · RIPE

AS8220:AS-COLTUK AS numbers routed by Colt UK

An as-set registered in RIPE, maintained by COLT-MNT. It names 276 ASes and 18 sets directly; followed all the way down, it reaches 775 ASes through 32 nested sets.

Members

What AS8220:AS-COLTUK lists

276 ASes and 18 sets, written in the object across every registry that holds it. Sets open their own page.

AS-AS3360AS-CRX-CLTAS-EIGHT-X-EIGHT-EUAS-FJNETAS-IBMGNPP-UKAS-IGAS-LSEAS-MIGCOREAS-MRSAS-NTTGN-EUAS-ORACLE-OCI-OC1AS-ORACLE-OCI-OC4AS-SET-CITI-EMEAAS-SIX-DEGREES-TO-COLTAS-UPDATAAS-VIRTELA-COMMAS-VMWARE-SASEAS12025:AS-CONEAS12 NYU-DOMAINAS72 SCHLUMBERGER-ASAS2535 BPAS3573 ACCENTUREAS4195 SHAWAS4892 APPLIEDUK-CLOUD-04AS5662 WBD-AS5662AS6072 UNISYS-AS-CAS7138 ENCOMPASS-ASNAS7155 VIASAT-SP-BACKBONEAS8220 COLTAS8336 InnovationGrpEMEAAS8640 ZFS-GROUPAS8651 MUSIAS8784 AS8784AS9084 GSI-ASAS9090 PRNEAS9193 ConXionEUAS10780 PURE-STORAGEAS11158 NETDEPONAS11179 ARYAKA-ARINAS11323 GETTYIMAGESAS11369 STONEXAS11409 EFXSECUREAS11911 THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS11911AS12058 HOTELS-LONAS12222 AKAMAIAS12678 BADOO-UAS12701 BARCAPAS12761 COLT-CORP-ITAS13431 MILLENNIUM-ASAS13458 DKP-ASNAS13464 CPLP-ASNAS13619 THOMSON-REUTERSAS13821 ACMLAS14062 AKQAAS14127 ILANDAS14343 JDASOFTWAREAS14689 ENFUSION-ASNAS14969 JANE-STREETAS15404 COLTAS15601 Baring
Show 234 more
AS15768 ASWORLDPAYAS15769 DeutscheAS16050 Refinitiv-Slough-LO5-res-ASAS16477 NCL-203-16477AS16491 VIASATAS16599 BENTLEY-SYSTEMSAS16645 EPIQSYSTEMSAS16839 SNCAS16875 AS16875AS17035 NBCUNI-17035AS17060 E-NETWORKSAS17071 UBSW-STAMFORDAS17088 CURRENEXAS17372 BMO-TOR2AS17903 COGNIZANT-IN-APAS17978 SERVCORPAS18438 BROWNBAS18608 PALADYNE-SYSTEMS-INCAS18900 CQG-INCAS19178 BGC-InternationalAS19305 TNSI-AS-19305AS19738 ASSURANT-ATL01INETAS19745 OKTAAS19920 AKINBGPAS20340 CALLTOWERAS20896 VK-EU-TelfordAS21160 ASN-MARKELAS21296 ASN-PwC-UKAS21369 SEMA-UK-ASAS21433 AccentureFSSCAS21439 MORGAN-STANLEYAS21459 GNSEUROPEUK-ASAS21464 EDF-ASAS22003 PT-ASNAS22024 SPLUNK-WESTAS22056 SITEL-OMAAS22097 KLGATESAS22098 CAPGROUP-NAAS22604 DSS-MTAS22731 MTBAS22883 CONDENASTAS24109 WNSNETAS24406 CNNIC-CRITICAL-APAS25844 SKADDEN1AS25938 SOROS-FUND-MANAS25955 PROSKAUER-1AS26057 MEDIAOCEANAS26178 ATKINS-NORTH-AMERICAAS26395 JOHNSON-CONTROLSAS26654 RFA-IDCAS26685 FRK-SMOAS27281 QUANTCASTAS27377 FTICON-909AS27447 SRZLLPASAS28846 ASCARLTONTVAS28934 MIZUHO-ASAS29214 HOUSES-OF-PARLIAMENTAS29457 OPTIONS-ASAS29874 CAMBRI-AS1AS29954 JLL-AM-CHIAS30012 ASN-UNIVERSAL-MUSIC-GROUP-INCAS30303 OOMAAS30417 BTIG-LLCAS31003 IRON-MOUNTAIN-UK-ASAS31404 Lycatel-ASAS31474 MTV-UK-ASAS31637 MECUK-ASAS31747 BLACKROCK-FINANCIAL-MANAGEMENT-2AS32050 SULLCROMAS32176 32176AS32402 ASN-TOWERAS32906 FMGLOBALAS33359 COWEN-AS-3AS33371 WMA-BEVERLY-HILLSAS34499 BlackBox-LINXAS34640 NEX-CORP-UKAS34693 CME-AS-LD4-1AS35064 RIAS35350 AS_SCHWARZ_PHARMA_AGAS35405 MACQUARIEBANKNET-EU-ASAS35801 RE-SOURCES-ASAS36184 VIRTU-FINANCIALAS36671 TWOSIGMA2AS38000 CRISIL-ASAS38191 INFOSYS-ASAS39576 Prostack-HostingAS39584 LGIMAS39957 PWP-ASNAS40123 R2G-2AS40703 WBD-AS40703AS40841 MARKETAXESS-INC-ASAS40992 MAREXAS41493 CHI-XAS41751 OCADOAS41951 GlobecastUKAS42046 ITNAS42880 HP-BCRS-UKAS43236 BLUECREST-ASAS43392 BLUEBAY-ASSET-ASAS43486 MSUI1-ASAS44371 PPNAS44480 Brevan-Howard-ASAS44548 CMCMarkets-ASAS44745 FIDESSA-ASAS44786 ADOBE-IRELAND-ASAS44931 TNT-EXP-ICSAS46342 AJGCOAS46646 BT-ASNAS46917 PRAGMA-FS-01AS47351 REDTECHAS47393 GROUPMAS47563 SIS-ASAS47571 DCMANAGEDAS47611 WMI-UK-LONAS47671AS47754 SQP-ASAS48083 GETRONICS_ASAS48463 TRADITIONGROUPAS48553 MARKETAXESSAS48688 Thales_UK_LtdAS48866 NETCRACKER-EMEA-ASAS48967 BATS_TRADINGAS49065 SECTRAAS49868 ANITE-TRAVEL-SYSTEMSAS50152 IMEDAS50202 HISCOXGROUP-ASAS50246 TREASURYSYSTEMS-ASAS50287 AudatexUKAS50422 RBS-GBMAS50432 RBS-GBM-UKSTAFFAS50889 GFN-EMEAAS51222 CMC-MARKETS-PLCAS53276 TUDORAS53485 LON-NIDRAS53712 WMCLLPAS54128 POKEMON-BELLEVUEAS54201 WEWORK-MANAGEMENT-LLCAS56474 CCDCUKAS56637 FixnetixAS56640 BAIN-AND-COMPANY-INC-UNITED-KINGDOMAS56644 SYNFS-ASAS57228 AXIANS-UK-ASAS57408 REED-SMITH-EU-ASNAS57551 IMS-LHR26AS59345 CGSOPL-ASAS59437 NORTHERNDATAAS59451 ARABBANK-ASAS59529 CME-AS-LO2-1AS59565 CRONOS-ASAS59582 AC-ASAS59836 CBRE-EMEAAS59907 IMSHealthAS60102 SOVA-CAPITALAS60142 NXP-INTERNETAS60898 AQUIS-EXCHANGEAS62346 XTRAKTER-LTD-ASNAS62631 AURUSAS63217 VISTEXAS63442 SERVERFARMAS64204 TTEK-12AS64401 RIGNET-GB-ASAS134406 AustralianSuperPtyLtd-AS-APAS150329 SENSOR-AS-APAS197039 NOMURA-NET1-AS1AS197385 STACUITY-INETAS197409 CO-OPERATIVE-GROUP-ASAS197832 NaviSiteEuropeAS197856 IMS-LHR3AS198302 APHELION-ASAS199559 PolarlakeAS199706 BLOCK-ASAS200083 SUB6AS200124 FLEXUK-ASAS200468 ALVAREZAS200682 TLC-ASNAS200824 SUSQ-IREAS200946 RSA-ASAS200961 FWI2-ASNAS201071 VISL-IEAS201958 ADP-EUROPEAS202154 brevanhowardAS202161 PGDS-ASN1AS202166 UKNETDOCSAS202275 GTSUK-ASAS202312 SMBCNIKKOCMAS202363 uk-rjobrienAS202466 qbeeoAS202587 UMOJA-ASAS202787 withers-globalAS203159 aoc-hqAS203315 WebWizAS203438 RGSLAS203898 CLOUDFLARENET-UKAS204204 uk_point72uklimitedAS204247 ASDA-UK-ASAS204528 spacecomAS204826 NR-EU-MA3AS205177 IVANTI-UKAS205237 SAVILLS-PLCAS205332 ITIVITI-ASNAS206289 sabisAS206357 ALDERMOREAS206573 Lonsys-ukAS206664 FlextradeUK-2AS206933 nscglobalAS207241 IBKR-GB-ASAS207870 EPICGA-DC4-ASAS208098 GPSAS208379 APTNAS208623 Threadneedle_MNTAS208638 mimecast-it-corpAS210253 CREATIVE-NETWORK-CONSULTING-ASAS210450 ASN_NHSBARTSHEALTHAS210874 box-broadbandAS211269 AACNLAS211460 NOVATRIX-ASAS211829 ZahaAS212141 IBKR-4-ASAS212152 AS-BeazleyAS212310 NielsenAS212646 SSLN-ASAS213000 ASAMLAS213176 Perimeter-81AS215662 KENSINGTONAS393226 INTERCONTINENTAL-EXCHANGE-MULTI-ISP-SITESAS393414 KIRKLAND-ELLIS-UKAS393551 LON-DC-01AS394105 AMTRUST-NAAS394265 BOX-CORPAS394424 US2-FINETAS397074 TJXCOS-CORP-ASNAS398462 VPHARM-UKAS402096 NTRS-LD5-P1AS402108 TKO-ASN
Expanded

Every AS it reaches

What a filter built from AS8220:AS-COLTUK would let in: 775 ASes.

Show the 775 ASes
AS12AS72AS90AS277AS792AS793AS794AS1215AS1216AS1217AS1218AS1219AS1696AS1999AS2044AS2384AS2535AS2763AS2828AS3360AS3573AS3705AS3949AS4184AS4192AS4195AS4211AS4237AS4857AS4892AS4927AS5662AS6072AS6128AS6448AS6779AS6908AS7138AS7155AS7160AS7257AS7298AS7336AS7352AS7719AS7859AS8161AS8220AS8336AS8640AS8651AS8784AS9084AS9090AS9163AS9193AS9212AS10780AS10835AS11158AS11166AS11179AS11217AS11222AS11323AS11369AS11409AS11474AS11479AS11765AS11783AS11911AS12025AS12058AS12138AS12222AS12257AS12433AS12488AS12678AS12701AS12761AS12980AS13405AS13431AS13458AS13464AS13619AS13624AS13821AS13824AS14062AS14127AS14147AS14160AS14162AS14211AS14343AS14410AS14441AS14490AS14506AS14532AS14653AS14689AS14740AS14746AS14864AS14969AS15037AS15082AS15404AS15601AS15768AS15769AS15854AS16050AS16204AS16477AS16491AS16502AS16507AS16599AS16645AS16731AS16839AS16875AS16898AS16926AS17035AS17060AS17071AS17073AS17088AS17189AS17237AS17307AS17372AS17903AS17916AS17978AS18340AS18437AS18438AS18484AS18485AS18486AS18487AS18488AS18489AS18490AS18491AS18561AS18608AS18716AS18806AS18880AS18900AS18916AS19178AS19305AS19346AS19472AS19685AS19738AS19745AS19803AS19804AS19805AS19806AS19807AS19808AS19809AS19810AS19869AS19888AS19920AS19931AS20037AS20041AS20143AS20163AS20340AS20389AS20465AS20652AS20841AS20896AS21160AS21296AS21346AS21369AS21396AS21433AS21439AS21459AS21464AS21540AS21549AS21807AS21942AS22003AS22024AS22056AS22097AS22098AS22151AS22377AS22435AS22604AS22625AS22632AS22648AS22716AS22731AS22750AS22764AS22804AS22883AS23161AS23885AS24109AS24115AS24118AS24216AS24232AS24406AS24486AS24571AS24594AS24851AS25501AS25577AS25588AS25681AS25844AS25938AS25955AS26057AS26120AS26178AS26241AS26250AS26355AS26395AS26654AS26685AS26817AS26954AS27281AS27285AS27292AS27377AS27447AS27449AS27489AS27784AS28274AS28757AS28846AS28934AS29214AS29297AS29457AS29488AS29575AS29697AS29821AS29874AS29954AS30012AS30276AS30292AS30303AS30417AS30495AS30536AS30704AS30847AS30931AS31003AS31220AS31273AS31404AS31474AS31637AS31708AS31727AS31747AS31785AS31898AS31962AS31963AS31966AS32050AS32164AS32176AS32312AS32402AS32812AS32854AS32906AS32988AS33161AS33307AS33308AS33350AS33359AS33371AS33446AS33459AS33504AS33517AS33622AS33967AS33992AS34243AS34499AS34640AS34679AS34693AS34811AS35064AS35262AS35350AS35405AS35670AS35801AS35841AS35914AS35953AS35967AS36184AS36262AS36458AS36671AS36983AS37991AS38000AS38191AS38304AS38538AS39115AS39576AS39584AS39592AS39610AS39621AS39925AS39957AS40123AS40146AS40289AS40513AS40652AS40703AS40818AS40841AS40992AS41000AS41246AS41255AS41400AS41415AS41457AS41466AS41493AS41593AS41595AS41653AS41693AS41751AS41759AS41813AS41866AS41951AS42018AS42046AS42077AS42214AS42228AS42332AS42382AS42479AS42808AS42880AS43081AS43236AS43392AS43486AS43532AS43551AS43894AS43898AS43927AS43935AS43950AS44305AS44324AS44371AS44442AS44480AS44548AS44574AS44684AS44745AS44786AS44931AS44934AS44965AS44971AS46108AS46203AS46282AS46342AS46558AS46616AS46646AS46650AS46732AS46917AS47351AS47393AS47563AS47571AS47583AS47611AS47625AS47671AS47746AS47754AS47778AS47797AS47999AS48052AS48071AS48083AS48231AS48443AS48463AS48553AS48570AS48620AS48688AS48866AS48967AS49065AS49485AS49503AS49572AS49626AS49728AS49819AS49823AS49856AS49868AS49898AS50023AS50152AS50202AS50246AS50287AS50419AS50422AS50432AS50468AS50882AS50888AS50889AS51063AS51198AS51222AS51265AS51297AS51439AS51466AS51545AS51551AS51572AS51823AS51844AS51945AS52019AS53026AS53276AS53485AS53712AS53733AS53766AS53769AS53925AS53957AS54003AS54128AS54201AS54253AS54431AS54545AS54626AS54996AS55002AS55092AS55226AS56038AS56367AS56474AS56637AS56640AS56644AS56670AS56990AS57228AS57307AS57408AS57551AS57907AS58102AS59345AS59437AS59451AS59493AS59529AS59565AS59581AS59582AS59638AS59676AS59680AS59836AS59870AS59907AS60015AS60102AS60103AS60142AS60253AS60670AS60793AS60898AS60900AS61255AS61373AS62240AS62346AS62480AS62506AS62529AS62631AS62669AS62728AS62791AS62947AS63050AS63217AS63295AS63360AS63442AS63454AS63474AS64102AS64204AS64401AS133050AS133504AS133748AS134406AS135671AS136025AS150329AS196744AS196745AS196778AS197039AS197385AS197409AS197471AS197832AS197856AS198302AS198304AS198554AS198860AS198864AS199018AS199327AS199373AS199379AS199385AS199559AS199706AS199870AS199890AS200083AS200124AS200468AS200682AS200824AS200946AS200961AS201071AS201345AS201705AS201862AS201902AS201941AS201958AS202154AS202161AS202166AS202275AS202312AS202348AS202363AS202437AS202466AS202587AS202734AS202787AS202901AS202939AS203035AS203129AS203159AS203315AS203438AS203661AS203724AS203843AS203897AS203898AS203923AS204204AS204247AS204255AS204528AS204826AS205126AS205177AS205237AS205332AS205373AS205417AS205434AS205707AS205736AS205794AS206132AS206209AS206289AS206357AS206512AS206573AS206626AS206664AS206933AS206986AS207162AS207196AS207241AS207299AS207740AS207870AS208098AS208206AS208379AS208396AS208524AS208623AS208638AS208884AS209394AS209622AS209710AS210253AS210450AS210576AS210812AS210874AS211008AS211067AS211269AS211460AS211537AS211575AS211585AS211829AS212141AS212152AS212310AS212646AS213000AS213001AS213176AS213436AS213579AS213605AS213615AS213782AS214242AS214420AS214640AS214848AS214931AS215150AS215191AS215343AS215468AS215502AS215662AS215760AS215828AS215842AS216042AS216107AS216294AS216326AS218513AS218668AS218822AS219079AS219378AS219421AS219480AS219542AS393226AS393314AS393414AS393551AS393773AS393836AS393871AS394105AS394149AS394265AS394424AS395010AS395130AS395135AS395159AS395174AS395517AS395644AS395730AS396368AS396930AS396935AS397074AS397444AS397808AS398031AS398298AS398462AS399034AS399221AS399875AS399894AS400183AS400306AS400318AS400554AS400769AS400783AS401106AS402004AS402096AS402106AS402108AS402132AS402241AS402247AS402368AS402587AS402618AS402654AS402847
Prefixes

What AS8220:AS-COLTUK covers

Every route object in the IRR whose origin is one of the 775 ASes it reaches: the prefixes a filter built from AS8220:AS-COLTUK (with bgpq4, say) would allow. 23,678 IPv4 and 6,679 IPv6. Every one is in the IRR API.

23,678 IPv4 prefixesthe first 1,000 listed
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6,679 IPv6 prefixesthe first 1,000 listed
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Registries

Each registry’s copy

RIPE294 membersAS numbers routed by Colt UK
Maintained byCOLT-MNT
Last modified2026-09-30T12:17:17Z
MembersAS8220 AS15404 AS12 AS72 AS-ORACLE-OCI-OC4 AS-SET-CITI-EMEA AS2535 AS-AS3360 AS3573 AS4195 AS4892 AS5662 AS6072 AS-SIX-DEGREES-TO-COLT AS7138 AS7155 AS8336 AS8640 AS8651 AS8784 AS9084 AS9090 AS9193 AS10780 AS11179 AS11323 AS11369 AS11409 AS11911 AS12025:AS-CONE AS12058 AS12222 AS12678 AS12701 AS12761 AS13431 AS13464 AS13619 AS13821 AS14062 AS14127 AS14343 AS14689 AS14969 AS15601 AS15768 AS15769 AS16050 AS16477 AS16491 AS16599 AS16645 AS16839 AS16875 AS17035 AS17060 AS17071 AS17088 AS17372 AS17903 AS17978 AS18438 AS18608 AS18900 AS19178 AS19305 AS19738 AS19745 AS-VIRTELA-COMM AS19920 AS20340 AS20896 AS21160 AS21296 AS21369 AS21433 AS21439 AS21459 AS21464 AS22003 AS22024 AS22056 AS22097 AS22098 AS22604 AS22731 AS22883 AS24109 AS24406 AS25844 AS25938 AS25955 AS26057 AS26178 AS26395 AS26654 AS26685 AS27281 AS27377 AS27447 AS28846 AS28934 AS29214 AS29457 AS-LSE AS29874 AS29954 AS30012 AS30303 AS30417 AS-IG AS31003 AS31404 AS31474 AS31637 AS-CRX-CLT AS31747 AS-ORACLE-OCI-OC1 AS32176 AS32402 AS32906 AS33359 AS34499 AS34640 AS34693 AS35064 AS35350 AS35405 AS35801 AS36184 AS36671 AS38000 AS38191 AS39584 AS39957 AS40123 AS40703 AS40841 AS41493 AS41751 AS41951 AS42046 AS42880 AS43236 AS43392 AS43486 AS44371 AS44480 AS44548 AS44745 AS44786 AS44931 AS46342 AS46646 AS46917 AS47351 AS47393 AS47563 AS47571 AS47611 AS47671 AS47754 AS-MIGCORE AS48083 AS48463 AS48553 AS48688 AS48866 AS48967 AS49065 AS-FJNET AS49868 AS50152 AS50202 AS50246 AS50287 AS50422 AS50432 AS50889 AS51222 AS-MRS AS-UPDATA AS53276 AS53485 AS53712 AS-VMWARE-SASE AS54128 AS54201 AS56474 AS56637 AS56640 AS56644 AS57228 AS57408 AS57551 AS59345 AS59437 AS59451 AS59529 AS59565 and 94 more
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Used by

Sets that include AS8220:AS-COLTUK

AS8220:AS-COLTEU
Tools

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IRR API, with prefixes