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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.
3,123 autonomous systems registered to United Kingdom. Click an AS for detail.
| AS5378GB | Vodafone Limited | 2.8M | 24 |
| AS6871GB | Plusnet British Telecommunications PLC | 2.1M | 64 |
| AS8220GB | COLT COLT Technology Services Group Limited | 1.5M | 171 |
| AS206067GB | H3GUK Hutchison 3G UK Limited | 1.1M | 332 |
| AS212238GB | CDNEXT Datacamp Limited | 968.4K | 3,979 |
| — |
| 1 |
| 1 |
| AS9786GB | XIANDOUCLOUD1-AS-AP - XIANDOUCLOUD INFORMATION TECHNOLOGY LTD | — | 1 | 1 |
| AS148971GB | KEIBIIN-AS-AP - Keibiin's Holdings Limited | — | 313 | 13 |
| AS216157GB | SIXNET-OP Sixnet Operation Ltd | — | 65.5K | 1 |
| AS51939GB | TerraMC Terra Management Consulting Ltd | — | 10 | 10 |
| AS201335GB | SEVENNET-UK Seven Networking UK Ltd | — | 4 | 4 |
| AS210387GB | GUARDY Guardy Limited | — | 4.1K | 1 |
| AS203873GB | HEX-NETWORK Alexander Berry-Roe | — | 288 | 3 |
| AS213767GB | RH Richard Humphries | — | 1 | 1 |
| AS213026GB | GWILKINSON George Wilkinson | — | 2 | 2 |
| AS216055GB | blue Wren Olivia Wood | — | 1 | 1 |
| AS198276GB | Lazuline Jordan Robert | — | 1 | 1 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 22 | 6 |
| AS43006GB | DIGITAL-REALTY-IE Digital Realty (UK) Limited | — | — | 0 |
| AS209230GB | SERVERNET-ASv SERVERNET INTERNET LIMITED | — | — | 0 |
| AS212902GB | KKL Kustom Konsulting Limited | — | — | 0 |
| AS208174GB | CAMLIN-AS CAMLIN TECHNOLOGIES LIMITED | — | — | 0 |
| AS200898GB | HUBS-LABS High-Speed Universal Broadband Services C.I.C. | — | — | 0 |
| AS199227GB | Protocol7-IX JIANYUELAB LTD | — | — | 0 |
| AS59680GB | CNSUK-AS Convergent Network Solutions Ltd | — | — | 0 |
| AS57155GB | COAST805-AS Contingency Networks Ltd | — | — | 0 |
| AS48562GB | EQUINIX-CLOUD-EXCHANGE-DUBAI-ASN EQUINIX (SERVICES) LIMITED | — | — | 0 |
| AS210993GB | AS210993 SPACECORE SOLUTION LTD | — | — | 0 |
| AS39148GB | NET1000-AS Synapse Network LTD | — | — | 0 |
| AS16034GB | KEME Digital Space Group Limited | — | — | 0 |
| AS12433GB | ORBTALK Telappliant Limited | — | — | 0 |
| AS215316GB | CLOUDAKA CLOUDAKA CLOUD PROVIDER LTD | — | — | 0 |
| AS213448GB | NETIFACEUK-AS Netiface Limited | — | — | 0 |
| AS12606GB | EASYNET-NL GTT - EMEA Ltd. | — | — | 0 |
| AS202818GB | Level3Communications Lumen Technologies UK Limited | — | — | 0 |
| AS197239GB | ClearNet HYPERLXC MEDICAL LTD | — | — | 0 |
| AS213982GB | DISTRICTB-AS Callum Bennett | — | 17 | 2 |
| AS142290GB | AGARTHATELEKOMLTD-AS-AP - AGARTHA TELEKOM LTD | — | 1 | 1 |
| AS43336GB | ASPIXIE PIXIE NETWORKS LTD | — | 524.3K | 1 |
| AS200800GB | ZURGANF-AS Zurganf Ltd | — | 1 | 1 |
| AS200840GB | chronara-ai-8663 Chronara AI Ltd | — | 1 | 1 |
| AS209364GB | OME-LOGIC-AS Ome Logic Ltd | — | — | 0 |
| AS202415GB | IDSI-2 Integrated Digital Services Ltd | — | — | 0 |
| AS199210GB | EY-DE-NGDC-1 EY Global Services Limited | — | — | 0 |
| AS205909GB | Phystrax-Network Phystrax Ltd | — | 64 | 1 |
| AS49512GB | EVERMERE Evermere Capital Management Ltd | — | — | 0 |
| AS43835GB | NCC NCC Services Ltd | — | — | 0 |
| AS39192GB | JackNet John Hadrill | — | — | 0 |
| AS9191GB | NEWNET Digital Space Group Limited | — | — | 0 |
| AS215909GB | AS-EDGENIX Edgenix LTD | — | — | 0 |
| AS213585GB | NULLPTR-AS Null Pointer Limited | — | — | 0 |
| AS202937GB | uk-scripps Discovery Corporate Services Limited | — | — | 0 |