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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.
3,132 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 | 369 |
| AS212238GB | CDNEXT Datacamp Limited | 1.1M | 4,286 |
| — |
| 1 |
| 1 |
| AS216364GB | uk-globalreachtech Global Reach Technology EMEA Limited | — | 8.2K | 2 |
| AS213982GB | DISTRICTB-AS Callum Bennett | — | 17 | 2 |
| AS210683GB | syo Syo.io Limited | — | 1 | 1 |
| AS209771GB | SYSN SYSN LTD | — | 1 | 1 |
| AS203504GB | Tomas-Freitas-Fernandes Tomas Freitas Fernandes | — | 2 | 2 |
| AS203873GB | HEX-NETWORK Alexander Berry-Roe | — | 288 | 3 |
| AS214592GB | GLADELIGHT Gladelight Limited | — | 17 | 2 |
| AS51939GB | TerraMC Terra Management Consulting Ltd | — | 10 | 10 |
| AS211224GB | JB3 Joseph Banks | — | 17 | 2 |
| AS202776GB | Moeclub MOECLUB LTD | — | 7 | 7 |
| AS213210GB | kingslanding-as Richard-Connon | — | 1 | 1 |
| AS213436GB | NIUZI_DADA_CLOUD NIUZI DADA CLOUD LIMITED | — | 1K | 1 |
| AS219370GB | Johnson Benjamin Johnson | — | 22 | 7 |
| AS213543GB | JONES-LAB Alexander Jones | — | 1 | 1 |
| AS208589GB | uk123lir ANT BM Limited | — | 1 | 1 |
| AS206877GB | SharedGrid SharedGrid Ltd | — | 1 | 1 |
| AS208699GB | ParsnsNetwork Leo Shum | — | 6 | 4 |
| AS205058GB | MAEEKO MAGICAL NETWORK LIMITED | — | 5 | 4 |
| AS210387GB | GUARDY Guardy Limited | — | 4.1K | 1 |
| AS200493GB | WHITEQUARK-AS Ekaterina Zotova | — | 1 | 1 |
| AS201616GB | theoh-as Theo Holroyd | — | 2 | 2 |
| AS198657GB | GOHEGAN-NET Kai Gohegan | — | 257 | 2 |
| AS214749GB | PAW James Cahill | — | 7 | 7 |
| AS205474GB | CARR Jack Carr | — | 1 | 1 |
| AS215022GB | FWLB-networks Jamie Hosker | — | 1 | 1 |
| AS214242GB | Jx Jiaxing Xing | — | 519 | 9 |
| AS201824GB | stat-cons-as STAT CONSULTING LTD | — | 1 | 1 |
| AS202235GB | CSD-COMMS UK On-line Agri-sales Limited | — | 65.5K | 1 |
| AS43336GB | ASPIXIE PIXIE NETWORKS LTD | — | 524.3K | 1 |
| AS213897GB | BUBBLES-AS BUBBLES ALTER LIMITED | — | 1 | 1 |
| AS200279GB | DOUWES-NET Thomas Douwes | — | 5 | 5 |
| AS215415GB | YUWAN-NETWORKS YUWAN NETWORKS LIMITED | — | 6 | 6 |
| AS204345GB | STALLARD Timothy Stallard | — | 1 | 1 |
| AS218758GB | CATBOY Lewis Brown | — | 17 | 2 |
| AS197378GB | ZYME Zyme Limited | — | 1 | 1 |
| AS204446GB | HELLOMOUSE Hellomouse Ltd | — | 6 | 6 |
| AS213092GB | marbleis Acrion International Limited | — | 28 | 13 |
| AS58052GB | VOLTERIC Volteric Limited | — | 1 | 1 |
| AS200365GB | Possibly-Lizards Possibly Lizards Limited | — | 257 | 2 |
| AS213650GB | CDNINFRA-AS CDN Infra Limited | — | 16 | 1 |
| AS200707GB | APPMAIL Integrated Digital Services Ltd | — | 65.5K | 1 |
| AS58339GB | MARIA-AS MARIA STYLE LTD | — | 1.4K | 33 |
| AS206792GB | ZACH Zachary Buller | — | 16 | 1 |
| AS214602GB | DATACENTER-CLUSTER-FL-AS FIRST SERVER LIMITED | — | 65.5K | 1 |
| AS207135GB | Giotsas Vasileios Giotsas | — | 2 | 2 |
| AS209808GB | LUKE Luke James | — | 64 | 1 |