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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 |
| AS201335GB | SEVENNET-UK Seven Networking UK Ltd | — | 4 | 4 |
| AS209507GB | REALLY-AWESOME-TECHNOLOGY Really Awesome Technology LTD | — | 1 | 1 |
| AS206202GB | NAMESERVERPARTY-AS Faelix Limited | — | 1 | 1 |
| AS210387GB | GUARDY Guardy Limited | — | 4.1K | 1 |
| AS214731GB | ETO-AS ETO Networks Limited | — | 617 | 42 |
| AS215002GB | PRISMGG PRISM.GG Limited | — | 80 | 2 |
| AS213982GB | DISTRICTB-AS Callum Bennett | — | 17 | 2 |
| AS47509GB | WT70-AS Wai-Wah Tang | — | 20 | 12 |
| AS212483GB | level86 LEVEL EIGHTY-SIX COMMUNICATIONS LTD | — | 32 | 17 |
| AS212232GB | BGPTOOLS Port 179 LTD | — | 260 | 5 |
| AS208699GB | ParsnsNetwork Leo Shum | — | 16 | 7 |
| AS208485GB | PINHOUSE-AS PINHOUSE LIMITED | — | 1 | 1 |
| AS213210GB | kingslanding-as Richard-Connon | — | 1 | 1 |
| AS216324GB | HYPERGROUP-NET - Hyper Group Network Ltd. | — | 3 | 3 |
| AS211224GB | JB3 Joseph Banks | — | 17 | 2 |
| AS200104GB | crow You are never Limited | — | 4.1K | 1 |
| AS203504GB | Tomas-Freitas-Fernandes Tomas Freitas Fernandes | — | 4 | 4 |
| AS206392GB | HACKWORTH_UK Hackworth Ltd | — | 50 | 4 |
| AS200455GB | HOTARU-AS HOTARU NETWORK LTD. | — | 178 | 13 |
| AS201529GB | ORCHID-CELLMARK-ABINGDON Orchid Cellmark Ltd | — | 1 | 1 |
| AS215127GB | TEAPOT 410 Teapot Limited | — | 16 | 1 |
| AS200708GB | GLASSIO-AS Hugo Rodrigues Da Costa | — | 1 | 1 |
| AS209771GB | SYSN SYSN LTD | — | 2 | 2 |
| AS49134GB | AS_10VPN 10VPN Research Network LTD | — | 22 | 4 |
| AS200365GB | Possibly-Lizards Possibly Lizards Limited | — | 257 | 2 |
| AS213650GB | CDNINFRA-AS CDN Infra Limited | — | 272 | 2 |
| AS213897GB | BUBBLES-AS BUBBLES ALTER LIMITED | — | 1 | 1 |
| AS148971GB | KEIBIIN-AS-AP - Keibiin's Holdings Limited | — | 313 | 13 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 23 | 7 |
| AS214168GB | SIXMANCHESTER Sixnet Operation Ltd | — | 65.5K | 1 |
| AS202235GB | CSD-COMMS UK On-line Agri-sales Limited | — | 65.5K | 1 |
| AS142290GB | AGARTHATELEKOMLTD-AS-AP - AGARTHA TELEKOM LTD | — | 1 | 1 |
| AS201038GB | MPARA1 Matteo Paramatti | — | 1 | 1 |
| AS215022GB | FWLB-networks Jamie Hosker | — | 1 | 1 |
| AS209606GB | BEYONDORBIT Beyond Orbit Ltd. | — | 3 | 3 |
| AS199686GB | aaroncarson Aaron Carson | — | 1 | 1 |
| AS214018GB | IIC-AS INTERNET INTELLIGENCE COMPANY LTD | — | 1 | 1 |
| AS198768GB | OASISINFO-AS OASIS INFOTECH LIMITED | — | 2 | 2 |
| AS44754GB | SPACEMINE-AS SpaceMine Ltd | — | 1 | 1 |
| AS200198GB | DSMTech DSM (GB) Limited | — | 16 | 1 |
| AS58339GB | MARIA-AS MARIA STYLE LTD | — | 704 | 33 |
| AS59920GB | LUSORY Lusory Limited | — | 1 | 1 |
| AS199519GB | THATGUYJACK-NET Jack Brierley | — | 9 | 9 |
| AS204946GB | GUFFNET ABSOLUTE GUFF LTD | — | 1 | 1 |
| AS34202GB | CLOUVIDER-THN2 Clouvider Limited | — | 1 | 1 |
| AS200299GB | BASESERV-AS BaseServ Limited | — | 1 | 1 |