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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 |
| — |
| 2 |
| 2 |
| AS12606GB | EASYNET-NL GTT - EMEA Ltd. | — | — | 0 |
| AS208386GB | coast-uk Coast Connect Ltd | — | — | 0 |
| AS208160GB | PINKCONNECT-AS Southern Communications Ltd | — | — | 0 |
| AS210993GB | AS210993 SPACECORE SOLUTION LTD | — | — | 0 |
| AS215963GB | torin Torin Storkey | — | — | 0 |
| AS5571GB | NETCOM GTT - EMEA Ltd. | — | — | 0 |
| AS213289GB | iqvia Redcentric Solutions Ltd | — | — | 0 |
| AS213202GB | The-Cloud-Systems-Group Cloudnet Computing Ltd | — | — | 0 |
| AS211131GB | as_globaltechinterapps LOBOS NETWORKING LTD | — | — | 0 |
| AS215071GB | SERVERSWITCH Server Switch Limited | — | — | 0 |
| AS200499GB | EHL-AS Enterprises Holding LTD | — | 1 | 1 |
| AS214714GB | SIGNALX-UK SIGNALX CLOUD COMMUNICATIONS LTD | — | — | 0 |
| AS213756GB | MACARNE Macarne Limited | — | — | 0 |
| AS213803GB | AS-Xray Xray Network Ltd | — | — | 0 |
| AS6675GB | COLT-FRANCE-AS COLT Technology Services Group Limited | — | — | 0 |
| AS210727GB | BuyLtd Buy Limited | — | — | 0 |
| AS57014GB | metroswitch 4on LTD | — | — | 0 |
| AS31402GB | BlueSquare Rank Digital Limited | — | — | 0 |
| AS201038GB | MPARA1 Matteo Paramatti | — | 1 | 1 |
| AS215231GB | volq-capital VolQ Capital Ltd | — | — | 0 |
| AS29478GB | JUNESTA Karl Dyson | — | 2 | 2 |
| AS214665GB | PROJECT-PC Adam Beddall | — | — | 0 |
| AS24670GB | COHTECH01-AS Coherent Technology Solutions Limited | — | — | 0 |
| AS212295GB | HEYBAS2 Hey Broadband LTD | — | — | 0 |
| AS211209GB | EUROPEANEDGE-IX AIRBYTES COMMUNICATIONS Limited | — | — | 0 |
| AS205265GB | KADFIRE-SEC Kadfire Limited | — | — | 0 |
| AS61245GB | lovehosting Yorkshire Tech Limited | — | — | 0 |
| AS39451GB | IOMART-AS Iomart Managed Services Limited | — | — | 0 |
| AS44110GB | WALSALL Walsall Metropolitan Borough Council | — | — | 0 |
| AS199519GB | THATGUYJACK-NET Jack Brierley | — | 9 | 9 |
| AS213385GB | Look_Web_Hosting_And_Web_Development LOOK WEB HOSTING AND WEB DEVELOPMENT LTD | — | — | 0 |
| AS216055GB | blue Wren Olivia Wood | — | 1 | 1 |
| AS212434GB | ITOGETHER Network Integration Technologies LTD | — | — | 0 |
| AS203056GB | TTBNGVS TalkTalk Communications Limited | — | — | 0 |
| AS202867GB | Sugarnet Voneus Ltd | — | — | 0 |
| AS199799GB | SOUNDMOUSE Soundmouse Ltd | — | — | 0 |
| AS49898GB | MYMIND BLOCZ IO LIMITED | — | — | 0 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 23 | 7 |
| AS208147GB | Snuggle Evie Snuggle | — | — | 0 |
| AS206918GB | DWP Department for Work and Pensions | — | — | 0 |
| AS207602GB | EA-CH-GENEVA Electronic Arts Limited | — | — | 0 |
| AS199853GB | HOSTIQOR-AS Hostiqor Limited | — | — | 0 |
| AS199349GB | SphereDent-AS SphereDent LTD | — | — | 0 |
| AS60547GB | Prostack-Hosting Sharpstack Hosting Ltd | — | — | 0 |
| AS198722GB | TXRX-AS 1310 Limited | — | — | 0 |
| AS214602GB | DATACENTER-CLUSTER-FL-AS FIRST SERVER LIMITED | — | 65.5K | 1 |