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Autonomous systems

Browse autonomous systems by size and country: name, type, prefix count and address space, from public routing data.

🇬🇧 United Kingdom

200All
ASNNameCountryNetwork typeIPv4 prefixesIPv4 addresses
AS2856BT-UK-AS BTnet UK Regional network🇬🇧 GBResidential42513,858,304
AS5089NTL🇬🇧 GBUnclassified network828,490,496
AS786JANET Jisc Services Limited🇬🇧 GBResidential1706,885,376
AS5607BSKYB-BROADBAND-AS🇬🇧 GBResidential206,089,728
AS13285OPALTELECOM-AS TalkTalk Communications Limited🇬🇧 GBResidential453,954,944
AS5378Vodafone🇬🇧 GBMobile carrier92,523,136
AS6871PLUSNET UK Internet Service Provider🇬🇧 GBResidential482,097,664
AS8220COLT COLT Technology Services Group Limited🇬🇧 GBUnclassified network1461,488,895
AS212238CDNEXT🇬🇧 GBDatacenter / hosting2,4341,059,584
AS8426CLARANET-AS ClaraNET LTD🇬🇧 GBResidential81904,704
AS5413WAVENET-AS5413🇬🇧 GBResidential87732,416
AS5400BT🇬🇧 GBUnclassified network67713,472
AS31655ASN-GAMMATELECOM🇬🇧 GBResidential30609,536
AS206067H3GUK🇬🇧 GBUnclassified network39529,152
AS13037ZEN-AS Zen Internet - UK🇬🇧 GBResidential23527,616
AS3300BT🇬🇧 GBUnclassified network48513,024
AS42689GLIDE🇬🇧 GBUnclassified network217496,640
AS8851EDGE ta GCI Com🇬🇧 GBDatacenter / hosting386460,800
AS15395RACKSPACE-LON🇬🇧 GBDatacenter / hosting37402,176
AS20860IOMART-AS🇬🇧 GBUnclassified network170379,136
AS8468ENTANET ENTANET International Limited🇬🇧 GBResidential35358,400
AS62240CLOUVIDER Clouvider - Global ASN🇬🇧 GBUnclassified network640339,968
AS25180EXPONENTIAL-E-AS🇬🇧 GBUnclassified network35291,328
AS30844LIQUID-AS🇬🇧 GBUnclassified network125275,712
AS12390KINGSTON-UK-AS🇬🇧 GBUnclassified network13249,856
AS25310ASN-CWACCESS🇬🇧 GBUnclassified network4229,376
AS201838ASN-COMMUNITYFIBRE🇬🇧 GBResidential97221,952
AS8607TIMICO United Kingdom🇬🇧 GBUnclassified network20205,568
AS35228O2BROADBAND🇬🇧 GBResidential41201,728
AS12703PULSANT-AS🇬🇧 GBUnclassified network58179,968
AS47474VIRTUAL1🇬🇧 GBUnclassified network15153,344
AS20712AS20712 Andrews & Arnold Ltd🇬🇧 GBUnclassified network85148,736
AS15404COLT Technology Services Group🇬🇧 GBUnclassified network115142,336
AS56478BCUBE-AS🇬🇧 GBUnclassified network29141,312
AS198864QMW-AC-UK🇬🇧 GBUnclassified network4132,864
AS8698Nationwide Building Society🇬🇧 GBUnclassified network2131,072
AS15914British Airways🇬🇧 GBUnclassified network20131,072
AS60068CDN77 _🇬🇧 GBDatacenter / hosting135130,048
AS25369BANDWIDTH-AS🇬🇧 GBUnclassified network232126,464
AS5587ITILITY-LIMITED Internet Service Provider🇬🇧 GBResidential12121,856
AS41354ITS-TG🇬🇧 GBUnclassified network31117,248
AS8586OBSL-AS TalkTalk - Business division🇬🇧 GBUnclassified network15108,032
AS42831UKSERVERS-AS UK Dedicated Servers, Hosting and Co-Location🇬🇧 GBDatacenter / hosting224107,264
AS214143SKYDIGITAL-TELECOM🇬🇧 GBResidential218107,008
AS56329GIGACLEAR🇬🇧 GBUnclassified network23106,496
AS3223VOXILITY🇬🇧 GBUnclassified network143105,216
AS58065PACKETEXCHANGE🇬🇧 GBDatacenter / hosting191105,216
AS6908DATAHOP Datahop - Six Degrees🇬🇧 GBUnclassified network39104,448
AS39326HSO-GROUP🇬🇧 GBUnclassified network22103,936
AS5503RMIFL🇬🇧 GBUnclassified network2699,328
AS13213UK2NET-AS🇬🇧 GBResidential7199,072
AS48101TROOLI-AS Trooli Ltd🇬🇧 GBUnclassified network1599,072
AS25160VORBOSS🇬🇧 GBUnclassified network3097,024
AS42973METRONETUK_M24SEVEN🇬🇧 GBUnclassified network3291,136
AS44574A4N Network Services🇬🇧 GBUnclassified network1988,576
AS41230ASK4🇬🇧 GBUnclassified network1288,320
AS21267WAVENET-AS21267 Wavenet offer a range of products from🇬🇧 GBResidential5687,552
AS29550SIMPLYTRANSIT🇬🇧 GBUnclassified network1285,760
AS24867ADAPT-AS🇬🇧 GBUnclassified network1684,736
AS214238IWIHOST🇬🇧 GBDatacenter / hosting8384,224
AS49758LLOYDSBANKING🇬🇧 GBUnclassified network381,920
AS61323UKFAST🇬🇧 GBUnclassified network4580,896
AS16082SPITFIRE🇬🇧 GBUnclassified network1279,872
AS16247M247-UK M247 UK Ltd, trading as M247🇬🇧 GBDatacenter / hosting8379,872
AS51561AS-ICUK🇬🇧 GBUnclassified network4273,216
AS60187LGFL-AS🇬🇧 GBUnclassified network1971,424
AS2818BBC BBC Internet Services, UK🇬🇧 GBResidential369,632
AS24775AS24775 - Qinetiq Limited🇬🇧 GBUnclassified network269,632
AS21433ACCENTUREFSSC London DC🇬🇧 GBUnclassified network9669,376
AS30740EXA-NETWORKS Exa Networks Limited🇬🇧 GBUnclassified network466,560
AS8651MUSI🇬🇧 GBUnclassified network265,792
AS201773UOW-AS🇬🇧 GBUnclassified network265,792
AS31515AS-INMARSAT🇬🇧 GBUnclassified network1365,536
AS39400LBH-AS County Council🇬🇧 GBUnclassified network265,536
AS209237NPL-MANG-LTD🇬🇧 GBUnclassified network265,536
AS21296ASN-PWC-UK🇬🇧 GBUnclassified network265,024
AS202596GNETWORK🇬🇧 GBUnclassified network4764,256
AS215540GCS-AS🇬🇧 GBUnclassified network16463,488
AS21301RBS-FM-AS🇬🇧 GBUnclassified network961,184
AS31727NODE4-AS🇬🇧 GBUnclassified network7860,672
AS59395EFAR-AS🇬🇧 GBUnclassified network2456,320
AS35425BYTEMARK-AS🇬🇧 GBUnclassified network1955,808
AS4455BSO🇬🇧 GBUnclassified network3954,784
AS29107SYNAPSE-AS🇬🇧 GBUnclassified network854,272
AS12701BARCAP London🇬🇧 GBUnclassified network1852,992
AS15533SASEUROPE🇬🇧 GBUnclassified network1451,968
AS39356AVANTI-UK-AS🇬🇧 GBUnclassified network650,944
AS44444FORCEPOINT-CLOUD-AS🇬🇧 GBDatacenter / hosting1950,688
AS48945IFNL-AS🇬🇧 GBUnclassified network1350,176
AS8419HOTCHILLI🇬🇧 GBUnclassified network648,896
AS25577C4L-AS🇬🇧 GBUnclassified network4248,640
AS5631LUMINET🇬🇧 GBResidential2347,616
AS51043Aspire Technology Solutions🇬🇧 GBUnclassified network2047,616
AS41564AS41564 - Orion Network Limited🇬🇧 GBUnclassified network11247,360
AS31404LYCATEL-AS🇬🇧 GBUnclassified network1147,104
AS205544LEASEWEB-UK-LON-11🇬🇧 GBDatacenter / hosting3946,592
AS43915TRUESPEED🇬🇧 GBUnclassified network4544,800
AS35575VAIONI🇬🇧 GBUnclassified network1544,288
AS5482AS5482 Allpoints Fibre Networks Ltd🇬🇧 GBResidential544,032
AS207957SERVHOST-AS🇬🇧 GBDatacenter / hosting6043,776
AS41095IPTP🇬🇧 GBUnclassified network4543,264
AS41012THECLOUD🇬🇧 GBDatacenter / hosting441,984
AS212465COMCAST-UK-2🇬🇧 GBResidential441,984
AS212655YOUFIBRE🇬🇧 GBResidential1741,984
AS8622ISIONUK Team Blue Internet Services UK Ltd🇬🇧 GBResidential541,216
AS33920AQL🇬🇧 GBUnclassified network840,960
AS34920SIMPLY-ROMFORD🇬🇧 GBUnclassified network1340,960
AS49572FCN🇬🇧 GBUnclassified network340,960
AS50292STRATOGEN🇬🇧 GBUnclassified network1540,960
AS20738GD-EMEA-DC-LD5🇬🇧 GBUnclassified network5240,448
AS8435LBG_INTERNET_EDGE Lloyds Banking Group Internet Edge🇬🇧 GBDatacenter / hosting1839,168
AS51320WIRELESSLOGIC-UK🇬🇧 GBMobile carrier1839,168
AS6660CWASIA🇬🇧 GBUnclassified network637,888
AS5555SOHONETEU-AS Sohonet European IP network🇬🇧 GBResidential1337,632
AS39545FLUIDATA🇬🇧 GBUnclassified network537,376
AS215439PLAY2GO-NET🇬🇧 GBResidential7637,120
AS199741TRANSITX🇬🇧 GBUnclassified network12536,608
AS49425DIGITAL-REALTY-UK🇬🇧 GBUnclassified network536,096
AS203346AS-232WEB🇬🇧 GBUnclassified network6936,096
AS49915MEGAPORT-GLOBAL-ACCESS Megaport🇬🇧 GBUnclassified network1635,840
AS29017GYRON🇬🇧 GBUnclassified network834,560
AS61112AkileCloud Network🇬🇧 GBDatacenter / hosting6334,560
AS214432ZLIDC🇬🇧 GBUnclassified network10234,560
AS31463FOURD-AS🇬🇧 GBUnclassified network2934,304
AS24916ORBITAL-ASN County House, Station Approach🇬🇧 GBUnclassified network2034,048
AS25135VODAFONE_UK_ASN🇬🇧 GBMobile carrier1233,792
AS207995LIGHTNINGFIBRE🇬🇧 GBResidential333,792
AS43937PTNET🇬🇧 GBResidential1833,280
AS9115INFB-AS9115🇬🇧 GBUnclassified network333,024
AS61231NEOS-NETWORKS🇬🇧 GBUnclassified network833,024
AS15412FLAG-AS Flag Telecom Global Internet AS🇬🇧 GBResidential1832,768
AS39550KPMG-UK-LLP-AS🇬🇧 GBUnclassified network332,768
AS51704SWGFL🇬🇧 GBUnclassified network132,768
AS13009VDATA🇬🇧 GBUnclassified network2832,000
AS31708COREIX-UK-AS London, Great Britain🇬🇧 GBUnclassified network1832,000
AS57099BCL-AS🇬🇧 GBUnclassified network1531,232
AS41678TIBUS🇬🇧 GBUnclassified network1430,976
AS51809BRSK🇬🇧 GBUnclassified network1530,976
AS34010YAHOO-IRD🇬🇧 GBUnclassified network2030,720
AS199335TALKSTRAIGHT🇬🇧 GBUnclassified network1430,464
AS215590DPKGSOFT-AS🇬🇧 GBUnclassified network5030,208
AS213607WORLD-FIRST-COMMUNICATION-LTD🇬🇧 GBUnclassified network7028,928
AS12519FASTNETUK🇬🇧 GBUnclassified network428,672
AS213877U1HOST-AS🇬🇧 GBDatacenter / hosting3828,672
AS42081ECMWF-IT🇬🇧 GBUnclassified network528,416
AS41811CONVERGENCE-GROUP🇬🇧 GBUnclassified network1227,904
AS200740FIRST-SERVER-EU-AS FIRST-SERVER-US🇬🇧 GBDatacenter / hosting4427,904
AS209641I-SERVERS-EAST🇬🇧 GBDatacenter / hosting4327,136
AS206347RANSTON-AS-1🇬🇧 GBUnclassified network1026,880
AS25098NETCALIBRE🇬🇧 GBUnclassified network1025,856
AS210874BOX-BROADBAND🇬🇧 GBResidential425,600
AS209341WHG-FRA🇬🇧 GBUnclassified network3225,344
AS39921DE-RACKSPACE Frankfurt, Germany🇬🇧 GBDatacenter / hosting724,832
AS5552DIALNET-UK🇬🇧 GBResidential424,576
AS49158WIFINITY🇬🇧 GBUnclassified network224,576
AS202282FIBRUS🇬🇧 GBUnclassified network1324,576
AS56595FLUENCY🇬🇧 GBUnclassified network2924,320
AS199468SOLWAY-COMMS-UK🇬🇧 GBUnclassified network523,808
AS39537HNS www.hns.net🇬🇧 GBResidential1823,296
AS58273B4RN-AS🇬🇧 GBUnclassified network1123,296
AS212286LONCONNECT🇬🇧 GBUnclassified network2523,040
AS9002RETN-AS🇬🇧 GBUnclassified network1522,528
AS24958TBSH🇬🇧 GBUnclassified network1122,528
AS30914IOKO-AS🇬🇧 GBUnclassified network722,528
AS210546AS-WAF🇬🇧 GBUnclassified network5122,528
AS216127AS-NUXTCLOUD🇬🇧 GBDatacenter / hosting5922,528
AS16353MERULA UK Routing🇬🇧 GBUnclassified network1422,016
AS34442AMATISNETWORKS🇬🇧 GBUnclassified network2121,760
AS34555CCS-LEEDS-ASN Unit A, Seacroft Trade Park🇬🇧 GBUnclassified network1021,504
AS49765COMMS365🇬🇧 GBUnclassified network1021,504
AS50957MEMSET🇬🇧 GBUnclassified network821,504
AS216138SKYQUANTUM-TELECOM🇬🇧 GBResidential6521,504
AS12496IDNET IDNet🇬🇧 GBResidential620,992
AS15641ARQIVA🇬🇧 GBUnclassified network1120,992
AS47264LDEX🇬🇧 GBUnclassified network1820,992
AS51263COUNTYBB🇬🇧 GBUnclassified network720,480
AS9153BURSTFIRE-EU European Peering and Transit AS🇬🇧 GBUnclassified network820,224
AS198440GIGANET🇬🇧 GBResidential1020,224
AS213915PHILIPP-MORIS-TRETTIN🇬🇧 GBUnclassified network5420,224
AS50131SPARTANHOST🇬🇧 GBDatacenter / hosting4719,968
AS30967TRUPHONE-LTD🇬🇧 GBUnclassified network1819,712
AS51551CAPITA-AS🇬🇧 GBUnclassified network419,712
AS51918CERBERUSNETWORKS-AS🇬🇧 GBUnclassified network719,712
AS45014HOSTIT-MK-AS Milton Keynes Facility🇬🇧 GBDatacenter / hosting2119,456
AS57356HIGHNET-AS🇬🇧 GBResidential619,456
AS58325BANDWIDTH-ASIA🇬🇧 GBUnclassified network1419,456
AS60426WIGHTFIBRE🇬🇧 GBResidential319,456
AS42228BRIGHTSTAR Brightstar AS object🇬🇧 GBUnclassified network1019,200
AS43949MMC🇬🇧 GBUnclassified network519,200
AS3170VELOXSERV🇬🇧 GBUnclassified network4918,688
AS5500CHESS Commercial Internet Service Provider🇬🇧 GBResidential818,432
AS6717AS6717 UK ISP🇬🇧 GBResidential418,432
AS39116TELEHOUSE🇬🇧 GBUnclassified network418,432
AS205489ORG-CLL23-RIPE🇬🇧 GBUnclassified network5818,432
AS15570INAP-LON Internap European Autonomous System🇬🇧 GBUnclassified network1718,176
AS60819SAFENAMES-AS🇬🇧 GBUnclassified network3917,920
AS12488KRYSTAL🇬🇧 GBUnclassified network1517,408
AS60377TOOB🇬🇧 GBUnclassified network217,408
AS61124MARSTONS🇬🇧 GBUnclassified network417,408
AS209693OC-NETWORK🇬🇧 GBUnclassified network3817,408