AS2856 — BT-UK-AS BTnet UK Regional network
BT-UK-AS BTnet UK Regional network — about 13.8 million IPv4 addresses.
ASNs in the United Kingdom: 2,069 networks (Autonomous Systems)
List of Autonomous Systems (ASN) registered in the United Kingdom — 2,069 networks from carriers, ISPs, clouds and companies. Find out who owns each network and what it means to see it on your connection.
AS5089 — NTL
NTL — about 8.5 million IPv4 addresses.
AS786 — JANET Jisc Services Limited
JANET Jisc Services Limited — about 6.9 million IPv4 addresses.
AS5607 — BSKYB-BROADBAND-AS
BSKYB-BROADBAND-AS — about 6.1 million IPv4 addresses.
AS13285 — OPALTELECOM-AS TalkTalk Communications Limited
OPALTELECOM-AS TalkTalk Communications Limited — about 4 million IPv4 addresses.
AS5378 — Vodafone
Vodafone — about 2.5 million IPv4 addresses.
AS6871 — PLUSNET UK Internet Service Provider
PLUSNET UK Internet Service Provider — about 2.1 million IPv4 addresses.
AS8220 — COLT COLT Technology Services Group Limited
COLT COLT Technology Services Group Limited — about 1.5 million IPv4 addresses.
AS212238 — CDNEXT
CDNEXT — about 1.1 million IPv4 addresses.
AS8426 — CLARANET-AS ClaraNET LTD
CLARANET-AS ClaraNET LTD — about 904.2 thousand IPv4 addresses.
AS5413 — WAVENET-AS5413
WAVENET-AS5413 — about 734.2 thousand IPv4 addresses.
AS5400 — BT
BT — about 713.5 thousand IPv4 addresses.
AS31655 — ASN-GAMMATELECOM
ASN-GAMMATELECOM — about 609.5 thousand IPv4 addresses.
AS206067 — H3GUK
H3GUK — about 529.2 thousand IPv4 addresses.
AS13037 — ZEN-AS Zen Internet - UK
ZEN-AS Zen Internet - UK — about 527.6 thousand IPv4 addresses.
AS3300 — BT
BT — about 513.3 thousand IPv4 addresses.
AS42689 — GLIDE
GLIDE — about 490.5 thousand IPv4 addresses.
AS8851 — EDGE ta GCI Com
EDGE ta GCI Com — about 448.3 thousand IPv4 addresses.
AS15395 — RACKSPACE-LON
RACKSPACE-LON — about 402.2 thousand IPv4 addresses.
AS20860 — IOMART-AS
IOMART-AS — about 384.5 thousand IPv4 addresses.
AS62240 — CLOUVIDER Clouvider - Global ASN
CLOUVIDER Clouvider - Global ASN — about 365.1 thousand IPv4 addresses.
AS8468 — ENTANET ENTANET International Limited
ENTANET ENTANET International Limited — about 358.4 thousand IPv4 addresses.
AS25180 — EXPONENTIAL-E-AS
EXPONENTIAL-E-AS — about 290.8 thousand IPv4 addresses.
AS30844 — LIQUID-AS
LIQUID-AS — about 273.7 thousand IPv4 addresses.
AS12390 — KINGSTON-UK-AS
KINGSTON-UK-AS — about 250.9 thousand IPv4 addresses.
AS25310 — ASN-CWACCESS
ASN-CWACCESS — about 229.4 thousand IPv4 addresses.
AS201838 — ASN-COMMUNITYFIBRE
ASN-COMMUNITYFIBRE — about 222 thousand IPv4 addresses.
AS8607 — TIMICO United Kingdom
TIMICO United Kingdom — about 205.6 thousand IPv4 addresses.
AS35228 — O2BROADBAND
O2BROADBAND — about 201.7 thousand IPv4 addresses.
AS12703 — PULSANT-AS
PULSANT-AS — about 179.5 thousand IPv4 addresses.
AS47474 — VIRTUAL1
VIRTUAL1 — about 153.3 thousand IPv4 addresses.
AS20712 — AS20712 Andrews & Arnold Ltd
AS20712 Andrews & Arnold Ltd — about 148.7 thousand IPv4 addresses.
AS15404 — COLT Technology Services Group
COLT Technology Services Group — about 141.8 thousand IPv4 addresses.
AS56478 — BCUBE-AS
BCUBE-AS — about 141.3 thousand IPv4 addresses.
AS25369 — BANDWIDTH-AS
BANDWIDTH-AS — about 134.4 thousand IPv4 addresses.
AS198864 — QMW-AC-UK
QMW-AC-UK — about 132.9 thousand IPv4 addresses.
AS8698 — Nationwide Building Society
Nationwide Building Society — about 131.1 thousand IPv4 addresses.
AS15914 — British Airways
British Airways — about 131.1 thousand IPv4 addresses.
AS60068 — CDN77 _
CDN77 _ — about 128.3 thousand IPv4 addresses.
AS5587 — ITILITY-LIMITED Internet Service Provider
ITILITY-LIMITED Internet Service Provider — about 121.9 thousand IPv4 addresses.
AS41354 — ITS-TG
ITS-TG — about 117.2 thousand IPv4 addresses.
AS42831 — UKSERVERS-AS UK Dedicated Servers, Hosting and Co-Location
UKSERVERS-AS UK Dedicated Servers, Hosting and Co-Location — about 109.6 thousand IPv4 addresses.
AS8586 — OBSL-AS TalkTalk - Business division
OBSL-AS TalkTalk - Business division — about 108 thousand IPv4 addresses.
AS56329 — GIGACLEAR
GIGACLEAR — about 106.5 thousand IPv4 addresses.
AS6908 — DATAHOP Datahop - Six Degrees
DATAHOP Datahop - Six Degrees — about 104.2 thousand IPv4 addresses.
AS39326 — HSO-GROUP
HSO-GROUP — about 102.9 thousand IPv4 addresses.
AS13213 — UK2NET-AS
UK2NET-AS — about 101.1 thousand IPv4 addresses.
AS58065 — PACKETEXCHANGE
PACKETEXCHANGE — about 100.4 thousand IPv4 addresses.
AS5503 — RMIFL
RMIFL — about 99.3 thousand IPv4 addresses.
AS48101 — TROOLI-AS Trooli Ltd
TROOLI-AS Trooli Ltd — about 99.1 thousand IPv4 addresses.
AS214143 — SKYDIGITAL-TELECOM
SKYDIGITAL-TELECOM — about 98.6 thousand IPv4 addresses.
AS25160 — VORBOSS
VORBOSS — about 97 thousand IPv4 addresses.
AS42973 — METRONETUK_M24SEVEN
METRONETUK_M24SEVEN — about 91.1 thousand IPv4 addresses.
AS44574 — A4N Network Services
A4N Network Services — about 88.6 thousand IPv4 addresses.
AS41230 — ASK4
ASK4 — about 88.3 thousand IPv4 addresses.
AS21267 — WAVENET-AS21267 Wavenet offer a range of products from
WAVENET-AS21267 Wavenet offer a range of products from — about 87.6 thousand IPv4 addresses.
AS29550 — SIMPLYTRANSIT
SIMPLYTRANSIT — about 85.8 thousand IPv4 addresses.
AS24867 — ADAPT-AS
ADAPT-AS — about 84.7 thousand IPv4 addresses.
AS49758 — LLOYDSBANKING
LLOYDSBANKING — about 81.9 thousand IPv4 addresses.
AS214238 — IWIHOST
IWIHOST — about 81.2 thousand IPv4 addresses.
AS61323 — UKFAST
UKFAST — about 80.9 thousand IPv4 addresses.
AS16247 — M247-UK M247 UK Ltd, trading as M247
M247-UK M247 UK Ltd, trading as M247 — about 80.1 thousand IPv4 addresses.
AS16082 — SPITFIRE
SPITFIRE — about 79.9 thousand IPv4 addresses.
AS3223 — VOXILITY
VOXILITY — about 76.8 thousand IPv4 addresses.
AS51561 — AS-ICUK
AS-ICUK — about 73.2 thousand IPv4 addresses.
AS60187 — LGFL-AS
LGFL-AS — about 71.4 thousand IPv4 addresses.
AS21433 — ACCENTUREFSSC London DC
ACCENTUREFSSC London DC — about 69.9 thousand IPv4 addresses.
AS2818 — BBC BBC Internet Services, UK
BBC BBC Internet Services, UK — about 69.6 thousand IPv4 addresses.
AS24775 — AS24775 - Qinetiq Limited
AS24775 - Qinetiq Limited — about 69.6 thousand IPv4 addresses.
AS30740 — EXA-NETWORKS Exa Networks Limited
EXA-NETWORKS Exa Networks Limited — about 66.6 thousand IPv4 addresses.
AS8651 — MUSI
MUSI — about 65.8 thousand IPv4 addresses.
AS201773 — UOW-AS
UOW-AS — about 65.8 thousand IPv4 addresses.
AS15601 — Baring Investment Services
Baring Investment Services — about 65.5 thousand IPv4 addresses.
AS31515 — AS-INMARSAT
AS-INMARSAT — about 65.5 thousand IPv4 addresses.
AS39400 — LBH-AS County Council
LBH-AS County Council — about 65.5 thousand IPv4 addresses.
AS209237 — NPL-MANG-LTD
NPL-MANG-LTD — about 65.5 thousand IPv4 addresses.
AS21296 — ASN-PWC-UK
ASN-PWC-UK — about 65 thousand IPv4 addresses.
AS202596 — GNETWORK
GNETWORK — about 64.3 thousand IPv4 addresses.
AS215540 — GCS-AS
GCS-AS — about 62.7 thousand IPv4 addresses.
AS21054 — RBSG-UK-AS Edinburgh
RBSG-UK-AS Edinburgh — about 60.7 thousand IPv4 addresses.
AS31727 — NODE4-AS
NODE4-AS — about 60.7 thousand IPv4 addresses.
AS35425 — BYTEMARK-AS
BYTEMARK-AS — about 55.8 thousand IPv4 addresses.
AS59395 — EFAR-AS
EFAR-AS — about 55.8 thousand IPv4 addresses.
AS4455 — BSO
BSO — about 54.8 thousand IPv4 addresses.
AS29107 — SYNAPSE-AS
SYNAPSE-AS — about 54.3 thousand IPv4 addresses.
AS12701 — BARCAP London
BARCAP London — about 53 thousand IPv4 addresses.
AS214432 — ZLIDC
ZLIDC — about 52.7 thousand IPv4 addresses.
AS15533 — SASEUROPE
SASEUROPE — about 52 thousand IPv4 addresses.
AS39356 — AVANTI-UK-AS
AVANTI-UK-AS — about 50.9 thousand IPv4 addresses.
AS41564 — AS41564 - Orion Network Limited
AS41564 - Orion Network Limited — about 50.7 thousand IPv4 addresses.
AS44444 — FORCEPOINT-CLOUD-AS
FORCEPOINT-CLOUD-AS — about 50.4 thousand IPv4 addresses.
AS48945 — IFNL-AS
IFNL-AS — about 50.2 thousand IPv4 addresses.
AS8419 — HOTCHILLI
HOTCHILLI — about 48.9 thousand IPv4 addresses.
AS25577 — C4L-AS
C4L-AS — about 48.6 thousand IPv4 addresses.
AS5631 — LUMINET
LUMINET — about 47.6 thousand IPv4 addresses.
AS51043 — Aspire Technology Solutions
Aspire Technology Solutions — about 47.6 thousand IPv4 addresses.
AS31404 — LYCATEL-AS
LYCATEL-AS — about 47.1 thousand IPv4 addresses.
AS205544 — LEASEWEB-UK-LON-11
LEASEWEB-UK-LON-11 — about 45.3 thousand IPv4 addresses.
AS43915 — TRUESPEED
TRUESPEED — about 44.8 thousand IPv4 addresses.
AS35575 — VAIONI
VAIONI — about 44.5 thousand IPv4 addresses.
AS5482 — AS5482 Allpoints Fibre Networks Ltd
AS5482 Allpoints Fibre Networks Ltd — about 44 thousand IPv4 addresses.
AS41095 — IPTP
IPTP — about 43.8 thousand IPv4 addresses.
AS41012 — THECLOUD
THECLOUD — about 42 thousand IPv4 addresses.
AS212465 — COMCAST-UK-2
COMCAST-UK-2 — about 42 thousand IPv4 addresses.
AS212655 — YOUFIBRE
YOUFIBRE — about 42 thousand IPv4 addresses.
AS8622 — ISIONUK Team Blue Internet Services UK Ltd
ISIONUK Team Blue Internet Services UK Ltd — about 41.2 thousand IPv4 addresses.
AS20738 — GD-EMEA-DC-LD5
GD-EMEA-DC-LD5 — about 41.2 thousand IPv4 addresses.
AS33920 — AQL
AQL — about 41 thousand IPv4 addresses.
AS34920 — SIMPLY-ROMFORD
SIMPLY-ROMFORD — about 41 thousand IPv4 addresses.
AS49572 — FCN
FCN — about 41 thousand IPv4 addresses.
AS50292 — STRATOGEN
STRATOGEN — about 41 thousand IPv4 addresses.
AS8435 — LBG_INTERNET_EDGE Lloyds Banking Group Internet Edge
LBG_INTERNET_EDGE Lloyds Banking Group Internet Edge — about 39.2 thousand IPv4 addresses.
AS51320 — WIRELESSLOGIC-UK
WIRELESSLOGIC-UK — about 39.2 thousand IPv4 addresses.
AS6660 — CWASIA
CWASIA — about 37.9 thousand IPv4 addresses.
AS5555 — SOHONETEU-AS Sohonet European IP network
SOHONETEU-AS Sohonet European IP network — about 37.6 thousand IPv4 addresses.
AS39545 — FLUIDATA
FLUIDATA — about 37.4 thousand IPv4 addresses.
AS215439 — PLAY2GO-NET
PLAY2GO-NET — about 37.1 thousand IPv4 addresses.
AS49425 — DIGITAL-REALTY-UK
DIGITAL-REALTY-UK — about 36.1 thousand IPv4 addresses.
AS203346 — AS-232WEB
AS-232WEB — about 36.1 thousand IPv4 addresses.
AS29017 — GYRON
GYRON — about 34.6 thousand IPv4 addresses.
AS31463 — FOURD-AS
FOURD-AS — about 34.3 thousand IPv4 addresses.
AS61112 — AkileCloud Network
AkileCloud Network — about 34.3 thousand IPv4 addresses.
AS24916 — ORBITAL-ASN County House, Station Approach
ORBITAL-ASN County House, Station Approach — about 34 thousand IPv4 addresses.
AS25135 — VODAFONE_UK_ASN
VODAFONE_UK_ASN — about 33.8 thousand IPv4 addresses.
AS49915 — MEGAPORT-GLOBAL-ACCESS Megaport
MEGAPORT-GLOBAL-ACCESS Megaport — about 33.8 thousand IPv4 addresses.
AS207957 — SERVHOST-AS
SERVHOST-AS — about 33.8 thousand IPv4 addresses.
AS207995 — LIGHTNINGFIBRE
LIGHTNINGFIBRE — about 33.8 thousand IPv4 addresses.
AS15412 — FLAG-AS Flag Telecom Global Internet AS
FLAG-AS Flag Telecom Global Internet AS — about 33.3 thousand IPv4 addresses.
AS9115 — INFB-AS9115
INFB-AS9115 — about 33 thousand IPv4 addresses.
AS61231 — NEOS-NETWORKS
NEOS-NETWORKS — about 33 thousand IPv4 addresses.
AS39550 — KPMG-UK-LLP-AS
KPMG-UK-LLP-AS — about 32.8 thousand IPv4 addresses.
AS51704 — SWGFL
SWGFL — about 32.8 thousand IPv4 addresses.
AS13009 — VDATA
VDATA — about 32 thousand IPv4 addresses.
AS31708 — COREIX-UK-AS London, Great Britain
COREIX-UK-AS London, Great Britain — about 32 thousand IPv4 addresses.
AS57099 — BCL-AS
BCL-AS — about 31.2 thousand IPv4 addresses.
AS41678 — TIBUS
TIBUS — about 31 thousand IPv4 addresses.
AS51809 — BRSK
BRSK — about 31 thousand IPv4 addresses.
AS34010 — YAHOO-IRD
YAHOO-IRD — about 30.7 thousand IPv4 addresses.
AS199335 — TALKSTRAIGHT
TALKSTRAIGHT — about 30.5 thousand IPv4 addresses.
AS213607 — WORLD-FIRST-COMMUNICATION-LTD
WORLD-FIRST-COMMUNICATION-LTD — about 28.9 thousand IPv4 addresses.
AS12519 — FASTNETUK
FASTNETUK — about 28.7 thousand IPv4 addresses.
AS215590 — DPKGSOFT-AS
DPKGSOFT-AS — about 28.7 thousand IPv4 addresses.
AS42081 — ECMWF-IT
ECMWF-IT — about 28.4 thousand IPv4 addresses.
AS41811 — CONVERGENCE-GROUP
CONVERGENCE-GROUP — about 27.9 thousand IPv4 addresses.
AS206347 — RANSTON-AS-1
RANSTON-AS-1 — about 26.9 thousand IPv4 addresses.
AS209641 — I-SERVERS-EAST
I-SERVERS-EAST — about 26.1 thousand IPv4 addresses.
AS25098 — NETCALIBRE
NETCALIBRE — about 25.9 thousand IPv4 addresses.
AS210874 — BOX-BROADBAND
BOX-BROADBAND — about 25.6 thousand IPv4 addresses.
AS213877 — U1HOST-AS
U1HOST-AS — about 25.6 thousand IPv4 addresses.
AS200740 — FIRST-SERVER-EU-AS FIRST-SERVER-US
FIRST-SERVER-EU-AS FIRST-SERVER-US — about 25.3 thousand IPv4 addresses.