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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 | 168 |
| AS206067GB | H3GUK Hutchison 3G UK Limited | 1.1M | 340 |
| AS212238GB | CDNEXT Datacamp Limited | 1M | 4,120 |
| — |
| 8.2K |
| 2 |
| AS199794GB | EMO-AS EMOCLOUD LTD | — | 528 | 3 |
| AS210338GB | PIXSAL-AS Kieran Breeze | — | 3 | 3 |
| AS31535GB | PROMONTORIA-AS Promontoria Ltd | — | — | 0 |
| AS202776GB | Moeclub MOECLUB LTD | — | 7 | 7 |
| AS30351GB | IIX-GCIIX-RS - IX Reach Ltd | — | — | 0 |
| AS204725GB | luna-frankland Luna Frankland | — | 1 | 1 |
| AS214634GB | AS-BRESSENDEN Bressenden Associates Ltd | — | — | 0 |
| AS213092GB | marbleis Acrion International Limited | — | 28 | 13 |
| AS215471GB | INTERNETTYUK-MDU Internetty Ltd | — | — | 0 |
| AS209777GB | ssdnetworks SSD Networks Limited | — | — | 0 |
| AS17626GB | YNL-AS-AP - Yasuda Network LTD | — | 1 | 1 |
| AS15565GB | GTT - EMEA Ltd. | — | — | 0 |
| AS212121GB | VAGUE James Ray | — | 4 | 4 |
| AS215378GB | LUNA Lunaworks Limited | — | — | 0 |
| AS211224GB | JB3 Joseph Banks | — | 17 | 2 |
| AS209003GB | Genius-Guard Geniusx Ltd | — | — | 0 |
| AS25085GB | ALUE-NET ALUE NETWORK LIMITED | — | 8 | 8 |
| AS208335GB | HOSTBYTE Connor Goodall trading as HostByte | — | — | 0 |
| AS199688GB | CRITPERF-AS Critical Perfect Ltd | — | 16 | 1 |
| AS201437GB | Ionworks-ASN1 Ionworks Ltd | — | — | 0 |
| AS207268GB | STREXP STRATEGIC EXPLORATIONS LTD | — | 24 | 6 |
| AS204819GB | AS204819 WPM Software Ltd | — | — | 0 |
| AS207529GB | NyanLoliNetwork NYANLOLI LTD | — | 594 | 20 |
| AS212483GB | level86 LEVEL EIGHTY-SIX COMMUNICATIONS LTD | — | 32 | 17 |
| AS205383GB | PERRYNET Rhys Perry | — | 1 | 1 |
| AS198535GB | NET-8E3 8E3 NETWORKS LTD | — | — | 0 |
| AS213771GB | PLATANO-NETWORKS DCC TECH LTD | — | 12 | 4 |
| AS200707GB | APPMAIL Integrated Digital Services Ltd | — | 65.5K | 1 |
| AS199804GB | TFES-AS THE FIRST EAST STAR LTD | — | 1 | 1 |
| AS204345GB | STALLARD Timothy Stallard | — | 1 | 1 |
| AS208341GB | AIRBAND-WHOLESALE RURAL WIRELESS LIMITED | — | — | 0 |
| AS57110GB | AARAN-CLOUD-AS Aaran Perry | — | 257 | 2 |
| AS201357GB | DPNET-FAST DPNET FAST RELIABLE HOSTING VPS CLOUD SOLUTIONS LTD | — | — | 0 |
| AS214592GB | GLADELIGHT Gladelight Limited | — | 17 | 2 |
| AS211511GB | JIDO Jido Ltd | — | — | 0 |
| AS199109GB | FruburyNet Guy Fenn-Newbury | — | 2 | 2 |
| AS210425GB | Equiniti Equiniti Services Limited | — | — | 0 |
| AS48961GB | WarwickNet Glide Student & Residential Limited | — | 65.5K | 1 |
| AS201467GB | TT Trillium Property Services Limited | — | — | 0 |
| AS213982GB | DISTRICTB-AS Callum Bennett | — | 17 | 2 |
| AS203094GB | ORG-CCL119-RIPE COMMUNITY CABLE LTD | — | — | 0 |
| AS213026GB | GWILKINSON George Wilkinson | — | 1 | 1 |
| AS44308GB | VAPOURMEDIA-AS Vapour Media Limited | — | — | 0 |
| AS203766GB | AWILLS Andrew Wills | — | 1 | 1 |
| AS202194GB | HORDEN-ENGINEERING Horden Engineering Limited | — | 1 | 1 |
| AS213434GB | GALACTIX Rhys Woolcott | — | 17 | 2 |