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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 | 4,229 |
| — |
| 524.3K |
| 1 |
| AS203981GB | DIXIPAY-AS DIXIPAY LTD | — | — | 0 |
| AS202631GB | LINX-GVPP London Internet Exchange Ltd. | — | — | 0 |
| AS201038GB | MPARA1 Matteo Paramatti | — | — | 0 |
| AS197166GB | GOTSCHNA-AS Gotschna Limited | — | 2 | 2 |
| AS198536GB | LUDIC-LABS Bekalu Terefe | — | — | 0 |
| AS58124GB | SIXDG-CSG Six Degrees Technology Group Limited | — | — | 0 |
| AS44008GB | RBKC Royal Borough of Kensington and Chelsea | — | — | 0 |
| AS219127GB | risman RISMAN LIMITED | — | 524.3K | 1 |
| AS60710GB | NCL-IX-RS Stellium Networks Limited | — | — | 0 |
| AS8709GB | VF-VPNPLUS Vodafone Enterprise Equipment Limited | — | — | 0 |
| AS219294GB | RUNWARE Runware Ltd | — | — | 0 |
| AS216217GB | baltic Baltic Networks Limited | — | — | 0 |
| AS213190GB | STACLAR-CARRIER Staclar Carrier Ltd. | — | — | 0 |
| AS210440GB | Akaere-NetWork AKAERE NETWORKS TECHNOLOGY LTD | — | — | 0 |
| AS212244GB | IP6net IP6net Ltd | — | — | 0 |
| AS207086GB | KNOYDART The Knoydart Foundation Ltd | — | — | 0 |
| AS208699GB | ParsnsNetwork Leo Shum | — | 6 | 4 |
| AS201799GB | CISCO-CAAS-EU Cisco International Limited | — | — | 0 |
| AS200131GB | stalliondc-as STALLIONDC Limited | — | — | 0 |
| AS199164GB | TIPICALL-AS TalkTalk Communications Limited | — | — | 0 |
| AS57110GB | AARAN-CLOUD-AS Aaran Perry | — | 257 | 2 |
| AS47933GB | CommIdea Verifone (U.K.) Limited | — | — | 0 |
| AS60787GB | UK_ROCKETFIBRE2 Rocket Fibre Ltd | — | — | 0 |
| AS60013GB | EQUINIX-FABRIC-LD EQUINIX (SERVICES) LIMITED | — | — | 0 |
| AS48987GB | JYANGNET Jiaxun Yang | — | 1 | 1 |
| AS197568GB | PINNACLE-AS PINNACLE INSURANCE MANAGEMENT SERVICES PLC | — | — | 0 |
| AS25178GB | KEYCOM-AS WIFINITY LIMITED | — | — | 0 |
| AS8180GB | EDGENIX-AS Edgenix LTD | — | — | 0 |
| AS218896GB | MICHAEL-SIMPSON MICHAEL SIMPSON | — | — | 0 |
| AS212711GB | NETSPAWN Daniel Terrence Thorpe | — | — | 0 |
| AS30746GB | NAT-MORRIS Nat Morris | — | — | 0 |
| AS207525GB | sausage Sausage Systems Ltd | — | — | 0 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 22 | 6 |
| AS203631GB | HedanCloud HEDAN LIMITED | — | — | 0 |
| AS211307GB | Fibreme Upp Corporation Limited | — | — | 0 |
| AS208121GB | VWMEDIA LOBOS NETWORKING LTD | — | — | 0 |
| AS204291GB | pinguin Thomas McLoughlin | — | 337 | 7 |
| AS205517GB | HCBC-AS Highland Community Broadband C.I.C. | — | — | 0 |
| AS203453GB | DiscountWebHosting RegXpress Ltd | — | — | 0 |
| AS200541GB | fvd-as1 Chess ICT Ltd | — | — | 0 |
| AS198768GB | OASISINFO-AS OASIS INFOTECH LIMITED | — | 2 | 2 |
| AS205932GB | TerraNetUK TerraNet Ltd | — | — | 0 |
| AS48875GB | PANTOR-ENGINEERING-ASN Goldman Sachs International | — | — | 0 |
| AS43207GB | QUICKLINE Quickline Communications Limited | — | — | 0 |
| AS40897GB | IIX-OKIIX-RS - IX Reach Ltd | — | — | 0 |
| AS12641GB | BT_MPLS British Telecommunications Limited | — | — | 0 |