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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 |
| — |
| 3 |
| 3 |
| AS35269GB | vx-london VELOCIX SOLUTIONS LIMITED | — | — | 0 |
| AS207529GB | NyanLoliNetwork NYANLOLI LTD | — | 66 | 18 |
| AS16162GB | LONDONWEB London Web Ltd | — | — | 0 |
| AS58285GB | ASSIXOP Sixnet Operation Ltd | — | 65.8K | 2 |
| AS203504GB | Tomas-Freitas-Fernandes Tomas Freitas Fernandes | — | 4 | 4 |
| AS61105GB | ONWAVE_UK Onwave UK Ltd | — | — | 0 |
| AS198557GB | ONETTL George French | — | 1 | 1 |
| AS50193GB | LOADEDGE LoadEdge Limited | — | — | 0 |
| AS205909GB | Phystrax-Network Phystrax Ltd | — | 64 | 1 |
| AS50534GB | VMO2 Virgin Media Limited | — | — | 0 |
| AS207965GB | ETIENNE-LABAUME ETIENNE LABAUME | — | 13 | 3 |
| AS199555GB | VM-UK-AS Virgin Money plc | — | — | 0 |
| AS214242GB | Jx Jiaxing Xing | — | 519 | 9 |
| AS60012GB | GDSV vXtream Ltd | — | — | 0 |
| AS198299GB | Kooljett-AS Kooljett Limited | — | — | 0 |
| AS43827GB | EnvAgency Environment Agency | — | — | 0 |
| AS200371GB | freedomsatuk Bentley-Walker Limited | — | 1 | 1 |
| AS214168GB | SIXMANCHESTER Sixnet Operation Ltd | — | 65.5K | 1 |
| AS212232GB | BGPTOOLS Port 179 LTD | — | 260 | 5 |
| AS47718GB | IMSHealth IQVIA SOLUTIONS HQ LTD | — | — | 0 |
| AS201616GB | theoh-as Theo Holroyd | — | 2 | 2 |
| AS212474GB | Daniella-Smithson Daniella Smithson | — | — | 0 |
| AS199519GB | THATGUYJACK-NET Jack Brierley | — | 9 | 9 |
| AS205749GB | Intelligent-Communitycations-125-Ltd INTELLIGENT COMMUNITYCATIONS 125 LTD | — | — | 0 |
| AS202194GB | HORDEN-ENGINEERING Horden Engineering Limited | — | 1 | 1 |
| AS8686GB | SYSONLINE Digital Space Group Limited | — | — | 0 |
| AS215499GB | richard-franks Richard Franks | — | — | 0 |
| AS213210GB | kingslanding-as Richard-Connon | — | 1 | 1 |
| AS202235GB | CSD-COMMS UK On-line Agri-sales Limited | — | 65.5K | 1 |
| AS58148GB | IRONSIDE Ironside Systems Ltd. | — | 1 | 1 |
| AS31270GB | FMN GCI Network Solutions Limited | — | — | 0 |
| AS203766GB | AWILLS Andrew Wills | — | 1 | 1 |
| AS42305GB | SMART-AS 3nt solutions LLP | — | — | 0 |
| AS205383GB | PERRYNET Rhys Perry | — | 1 | 1 |
| AS47712GB | VELOCIX-EU VELOCIX SOLUTIONS LIMITED | — | — | 0 |
| AS47509GB | WT70-AS Wai-Wah Tang | — | 20 | 12 |
| AS8760GB | ENERGIS-IRELAND VODAFONE ENTERPRISE EQUIPMENT LIMITED | — | — | 0 |
| AS35196GB | IH-TRANSIT-AS FIRST SERVER LIMITED | — | 65.5K | 2 |
| AS209003GB | Genius-Guard Geniusx Ltd | — | — | 0 |
| AS215002GB | PRISMGG PRISM.GG Limited | — | 80 | 2 |
| AS214073GB | heart-internet-uk Heart Internet limited | — | — | 0 |
| AS202776GB | Moeclub MOECLUB LTD | — | 3 | 3 |
| AS202897GB | DNO Dominik Nowacki | — | — | 0 |
| AS210387GB | GUARDY Guardy Limited | — | 4.1K | 1 |
| AS204446GB | HELLOMOUSE Hellomouse Ltd | — | 5 | 5 |
| AS204293GB | TinyHomeLab TinyHomeLab Ltd | — | 1 | 1 |