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How United Kingdom ranks worldwide on dormant space, the transfer market, routing security and address density.
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.
3,123 autonomous systems registered to United Kingdom. Click an AS for detail.
| AS5378GB | Vodafone Limited | 2.8M | 24 |
| AS6871GB | Plusnet British Telecommunications PLC | 2.1M | 63 |
| AS8220GB | COLT COLT Technology Services Group Limited | 1.5M | 171 |
| AS206067GB | H3GUK Hutchison 3G UK Limited | 1.1M | 332 |
| AS8426GB | CLARANET-AS Claranet Limited | 909.3K | 100 |
| 1.8K |
| — |
| 7 |
| AS48866GB | NETCRACKER-EMEA-AS Netcracker Technology EMEA Limited | 1.8K | — | 7 |
| AS198990GB | PINEHOST-NET Pine Hosting LTD | 1.8K | — | 4 |
| AS213495GB | SERVITRO-LTD SERVITRO LTD | 1.8K | 1 | 8 |
| AS204562GB | ASJavelin JAVELIN BROADBAND LIMITED | 1.8K | 524.3K | 5 |
| AS29474GB | GHOTI-AS Ghoti Limited | 1.8K | — | 4 |
| AS203185GB | PebbleTree PEBBLETREE LTD | 1.8K | 3 | 10 |
| AS209505GB | UNCHAINEDISP Unchained ISP Limited | 1.8K | 344.1K | 7 |
| AS49418GB | AS-NETSHIELD NETSHIELD LTD | 1.8K | 67 | 11 |
| AS204154GB | FIRST-SERVER-US-AS FIRST SERVER LIMITED | 1.8K | 1 | 7 |
| AS60868GB | BRANDWATCH-AS Runtime Collective Limited | 1.5K | 65.5K | 4 |
| AS64435GB | comgw The Communication GATEWAY LTD | 1.5K | 65.5K | 4 |
| AS212512GB | DETAI Detai Prosperous Technologies Limited | 1.5K | 9 | 15 |
| AS12761GB | COLT-CORP-IT COLT Technology Services Group Limited | 1.5K | — | 6 |
| AS60103GB | ACCESSPT Accesspoint Technologies Ltd | 1.5K | — | 3 |
| AS203054GB | ORG-TCL96-RIPE TownFibre Connect Ltd | 1.5K | 1 | 7 |
| AS59803GB | cceip DATAQUEST (HEATHROW) LIMITED | 1.5K | — | 2 |
| AS203106GB | ORG-CFL10-RIPE ClearNet Fibre Ltd | 1.5K | — | 6 |
| AS42513GB | NATILIK-AS Natilik Ltd | 1.5K | — | 4 |
| AS205842GB | LINKWEBSOLUTIONS Link Web Solutions LLP | 1.5K | — | 3 |
| AS206300GB | YUNYOO YUNYOO LTD | 1.5K | 4 | 9 |
| AS205091GB | EuroNet EuroNet Internet Ltd | 1.5K | 524.3K | 7 |
| AS47768GB | INTISTELECOM-AS UK Intis Telecom LTD | 1.5K | 1 | 4 |
| AS203177GB | PINNACA BCS Global Networks Limited | 1.5K | — | 6 |
| AS215089GB | FASTPANDA Fast Panda Limited | 1.5K | — | 6 |
| AS41379GB | NTA-AS Nationwide Telephone Assistance Ltd | 1.5K | — | 3 |
| AS215047GB | Theonebroadband DSV Communications Limited | 1.5K | 524.3K | 6 |
| AS203075GB | ORG-LFL9-RIPE LocalLink Fibre Ltd | 1.5K | — | 6 |
| AS41355GB | CATALYST2-RDG Team Blue Carrier Limited | 1.5K | 65.5K | 4 |
| AS199455GB | ARQWIFI Virgin WiFi Ltd | 1.5K | — | 3 |
| AS44371GB | PPN Paypoint Network Limited | 1.5K | — | 6 |
| AS202147GB | VPSUS VPSUS LTD | 1.5K | 1 | 7 |
| AS210667GB | SMISHCRAFT Adam Goodenough | 1.5K | 18 | 24 |
| AS200164GB | RHG-AS The Random House Group Limited | 1.5K | — | 3 |
| AS42217GB | GOODWOOD The Goodwood Estate Company Limited | 1.5K | 524.3K | 4 |
| AS215262GB | CLOUDNORD-UKNODE-AS Cloud Nord Limited | 1.5K | 1 | 5 |
| AS35180GB | HIPCOM-AS Broadsoft LTD | 1.5K | 2 | 8 |
| AS58144GB | ASN-TSC THE STREAMING COMPANY.COM LIMITED | 1.5K | — | 3 |
| AS29214GB | HOUSES-OF-PARLIAMENT THE HOUSE OF COMMONS | 1.5K | — | 5 |
| AS48412GB | pod Podsystem Limited | 1.5K | — | 3 |
| AS59445GB | ICC-AS ICC NETWORKS LTD | 1.5K | — | 3 |
| AS60228GB | C24-AS Six Degrees Technology Group Limited | 1.5K | 98.3K | 4 |
| AS35832GB | BGFL Birmingham City Council | 1.5K | — | 5 |
| AS44934GB | ARACHSYS Arachsys Internet Services Ltd | 1.5K | 65.5K | 5 |
| AS206136GB | CLOUDSRV-NORTH Clouvider Limited | 1.5K | — | 6 |
| AS60038GB | TAMG TripAdvisor Limited | 1.5K | — | 3 |
| AS211091GB | IPHOUSE I P House Limited | 1.5K | — | 6 |