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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 |
| — |
| 1 |
| 1 |
| AS214931GB | ALUE-NET ALUE LTD | — | 1 | 1 |
| AS213982GB | DISTRICTB-AS Callum Bennett | — | 17 | 2 |
| AS25085GB | ALUE-NET ALUE LTD | — | 10 | 10 |
| AS207529GB | NyanLoliNetwork NYANLOLI LTD | — | 573 | 14 |
| AS214514GB | HENRYCLARKE Henry Clarke | — | 16 | 1 |
| AS202194GB | HORDEN-ENGINEERING Horden Engineering Limited | — | 1 | 1 |
| AS213729GB | RikkiNet Rikki Network Limited | — | 1 | 1 |
| AS214818GB | WILL-WILSON William Wilson | — | 11 | 4 |
| AS218671GB | WALKOWSKI-AS Lukasz Walkowski | — | 1 | 1 |
| AS56758GB | CR0BAR Cr0bar Limited | — | 6 | 6 |
| AS200708GB | PROTEUS-AS Hugo Rodrigues Da Costa | — | 1 | 1 |
| AS210683GB | syo Syo.io Limited | — | 1 | 1 |
| AS215619GB | RCD-AS RED COKE DEVELOPMENT LTD | — | 3 | 3 |
| AS214749GB | PAW James Cahill | — | 7 | 7 |
| AS58285GB | ASSIXOP Sixnet Operation Ltd | — | 10.6M | 256 |
| AS200104GB | crow PETALDATA LTD | — | 1 | 1 |
| AS199804GB | TFES-AS THE FIRST EAST STAR LTD | — | 1 | 1 |
| AS205648GB | VirgoCube_Limited VirgoCube Limited | — | 256 | 1 |
| AS219441GB | NEKONODE NEKONODE LTD | — | 2 | 2 |
| AS215527GB | XERONET Xero Networks LTD | — | 7 | 7 |
| AS215158GB | SIXNET-OP2 Sixnet Operation Ltd | — | 65.5K | 1 |
| AS47509GB | WT70-AS Wai-Wah Tang | — | 10 | 8 |
| AS205383GB | PERRYNET Rhys Perry | — | 1 | 1 |
| AS218843GB | OMNIVISION-INTERNET-GATEWAY Omnivision Solutions Ltd | — | 338 | 8 |
| AS212806GB | stratagem VeloxServ Communications Ltd | — | 64 | 1 |
| AS215002GB | PRISMGG PRISM.GG Limited | — | 80 | 2 |
| AS49962GB | ALUE-NET ALUE LTD | — | 2 | 2 |
| AS214592GB | GLADELIGHT Gladelight Limited | — | 17 | 2 |
| AS215363GB | Wles Wles Technologies Ltd | — | 257 | 2 |
| AS203873GB | HEX-NETWORK Alexander Berry-Roe | — | 288 | 3 |
| AS200840GB | chronara-ai-8663 Chronara AI Ltd | — | 1 | 1 |
| AS198741GB | AMELIAK Amelia Kalinowska | — | 1 | 1 |
| AS219070GB | gbevm Eximia Networks Limited | — | 8 | 8 |
| AS202525GB | CHUNMING-AS Chun Ming Ou | — | 3 | 3 |
| AS213767GB | RH Richard Humphries | — | 1 | 1 |
| AS219370GB | Johnson Benjamin Johnson | — | 22 | 7 |
| AS219361GB | SHIKANOKO-NETWORKS SHIKANOKO NETWORKS LTD | — | 1 | 1 |
| AS213543GB | JONES-LAB Alexander Jones | — | 1 | 1 |
| AS213436GB | NIUZI_DADA_CLOUD NIUZI DADA CLOUD LIMITED | — | 1K | 1 |
| AS201616GB | theoh-as Theo Holroyd | — | 2 | 2 |
| AS205058GB | MAEEKO MAGICAL NETWORK LIMITED | — | 5 | 4 |
| AS51939GB | TerraMC Terra Management Consulting Ltd | — | 10 | 10 |
| AS58052GB | VOLTERIC Volteric Limited | — | 1 | 1 |
| AS213026GB | GWILKINSON George Wilkinson | — | 2 | 2 |
| AS208051GB | SR2COM SR2 Communications Limited | — | 32 | 2 |
| AS218748GB | OSCAR-BRADLEY Oscar Lewis Bradley | — | 4.1K | 1 |