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How United Kingdom ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United Kingdom over time.
The largest autonomous systems registered to United Kingdom by IPv4 footprint.
United Kingdom against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
3,134 autonomous systems registered to United Kingdom. Click an AS for detail.
| AS5378GB | Vodafone Limited | 2.8M | 24 |
| AS6871GB | Plusnet British Telecommunications Limited | 2.1M | 64 |
| AS8220GB | COLT COLT Technology Services Group Limited | 1.5M | 173 |
| AS206067GB | H3GUK Hutchison 3G UK Limited | 1.1M | 368 |
| AS212238GB | CDNEXT Datacamp Limited | 1.1M | 4,290 |
| 768 |
| 1 |
| 4 |
| AS207009GB | UK-FUTURE Future Publishing Ltd | 768 | 65.5K | 3 |
| AS43408GB | OCD-UK Orange Cyberdefense UK Limited | 768 | 1 | 4 |
| AS64415GB | CONNECTBIT-AS Ashgoal Limited | 768 | — | 3 |
| AS204204GB | uk_point72uklimited Point72 UK Limited | 768 | — | 3 |
| AS204928GB | AS-BONSAIHOST Bonsai Hosting ltd | 768 | 65.5K | 4 |
| AS8336GB | InnovationGrpEMEA THE INNOVATION GROUP (EMEA) LTD | 768 | — | 3 |
| AS211878GB | ALLSIMPLE All Simple Internet Services LLP | 768 | 1 | 4 |
| AS215854GB | DC-3-PROJECT Exponential-E Ltd. | 768 | — | 3 |
| AS204242GB | TRUTECS-AS Trutec Services | 768 | — | 3 |
| AS219141GB | ROCKET-MARINICA ROCKET & MARINICA LTD | 768 | — | 3 |
| AS35437GB | zonebroadband Zone Telecommunications Ltd | 768 | — | 2 |
| AS212406GB | TransFICC TransFICC Ltd. | 768 | — | 3 |
| AS59952GB | ExpediaEU Expedia.com Ltd. | 768 | — | 3 |
| AS201226GB | LEASINGOPTIONSLTD-AS Leasing Options Limited | 768 | — | 2 |
| AS42853GB | HGCINTL-AS HGC Global Communications (UK) Limited | 768 | — | 2 |
| AS15490GB | SHANEMCC Shane Mc Cormack | 768 | 524.3K | 3 |
| AS202364GB | gridh Grid Hosting Limited | 768 | — | 3 |
| AS203219GB | YAHOO-AMA Yahoo-UK Limited | 768 | 1 | 4 |
| AS202149GB | platformuk Comcast International Holdings UK Limited | 768 | — | 2 |
| AS204193GB | Pragma Gamma Telecom Holdings Ltd | 768 | — | 3 |
| AS201867GB | OXAGON-AS OXAGON LIMITED | 768 | — | 3 |
| AS34099GB | ROAD-TECH-COMPUTER-SYSTEMS Road Tech Computer Systems Ltd. | 768 | — | 2 |
| AS206467GB | PROTECH-COMMS Protech Communications Ltd | 768 | — | 3 |
| AS201738GB | UFO-TECHNOLOGIES-LIMITED UFO TECHNOLOGIES LIMITED | 768 | — | 3 |
| AS196809GB | FM FremantleMedia Limited | 768 | — | 3 |
| AS43525GB | TRENCHANT-AS Oculon LLP | 768 | — | 3 |
| AS54470GB | GCGKABAM - Garden City Games Ltd | 768 | — | 3 |
| AS197669GB | CLOUDCALL-UK-AS CloudCall LTD | 768 | 3 | 6 |
| AS204844GB | NCSE-NETWORK-Global NCSE NETWORK LTD | 768 | 4.4K | 17 |
| AS203861GB | MITEFLUX-AS Miteflux Technologies Ltd | 768 | 256 | 4 |
| AS206187GB | DIA-ASN Interactive Investor Services Limited | 768 | — | 3 |
| AS40992GB | MAREX Marex Financial Ltd | 768 | — | 2 |
| AS205294GB | ThermoFisher Thermo Electron Ltd | 768 | — | 2 |
| AS208711GB | ARVOX-DIGITAL ARVOX DIGITAL LTD | 768 | 3 | 6 |
| AS8296GB | HBVB HBVB Private Unlimited | 768 | — | 3 |
| AS42457GB | ascdck1 CARDOCK HOSTING LIMITED | 768 | — | 3 |
| AS60952GB | connexcs Connex Carrier Services (Worldwide) Limited | 768 | — | 3 |
| AS202787GB | withers-global Withers LLP | 768 | — | 3 |
| AS203614GB | NEXTTRANSLATE-AS NEXTTRANSLATE LTD | 768 | — | 3 |
| AS214663GB | DanBot-Hosting-LTD DanBot Hosting LTD | 768 | 17 | 5 |
| AS50156GB | BOXED-IT Boxed IT Ltd. | 768 | 1 | 3 |
| AS60464GB | SUPERNET-UK SUPERNET UK LIMITED | 768 | — | 3 |
| AS209413GB | DEDIK-CH DEDIK SERVICES LIMITED | 768 | — | 3 |
| AS213905GB | ISPLABS ISPLABS LIMITED | 768 | 22 | 10 |
| AS209809GB | ROCO-HOST ROCO HOST LTD | 768 | 1 | 4 |
| AS212240GB | RIKNETWORKS RIK Networks Ltd | 768 | — | 3 |