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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 |
| 6 |
| 6 |
| AS57110GB | AARAN-CLOUD-AS Aaran Perry | — | 257 | 2 |
| AS213729GB | RikkiNet Rikki Network Limited | — | 1 | 1 |
| AS59566GB | LogicForge LogicForge Limited | — | 8.2K | 1 |
| AS48987GB | JYANGNET Jiaxun Yang | — | 1 | 1 |
| AS58285GB | ASSIXOP Sixnet Operation Ltd | — | 10.6M | 256 |
| AS56367GB | ALUE-NET ALUE LTD | — | 2 | 2 |
| AS200279GB | DOUWES-NET Thomas Douwes | — | 5 | 5 |
| AS211035GB | PHANTOM-HIVE-AS PHANTOM HIVE NETWORK LTD | — | 2 | 2 |
| AS213436GB | NIUZI_DADA_CLOUD NIUZI DADA CLOUD LIMITED | — | 1K | 1 |
| AS213626GB | BIONIC-NETWORK Bionic.Network Ltd | — | 2 | 2 |
| AS205058GB | MAEEKO MAGICAL NETWORK LIMITED | — | 5 | 4 |
| AS202762GB | INFERNO-EVENTS Inferno Communications Ltd | — | — | 0 |
| AS213650GB | CDNINFRA-AS CDN Infra Limited | — | 16 | 1 |
| AS49438GB | CHILLISHOT Chillishot Ltd | — | — | 0 |
| AS208589GB | uk123lir ANT BM Limited | — | 1 | 1 |
| AS207086GB | KNOYDART The Knoydart Foundation Ltd | — | — | 0 |
| AS218839GB | ZONEKTELECOM-AS ZONEK TELECOM LTD | — | 11 | 11 |
| AS198657GB | GOHEGAN-NET Kai Gohegan | — | 257 | 2 |
| AS213434GB | GALACTIX Rhys Woolcott | — | 17 | 2 |
| AS51063GB | FUJITSU Fujitsu Telecommunications Europe Ltd | — | — | 0 |
| AS207965GB | ETIENNE-LABAUME ETIENNE LABAUME | — | 13 | 3 |
| AS212121GB | VAGUE James Ray | — | 4 | 4 |
| AS218776GB | FULLFIBER FULLFIBER LTD | — | 4 | 4 |
| AS199519GB | THATGUYJACK-NET Jack Brierley | — | 9 | 9 |
| AS34202GB | CLOUVIDER-THN2 Clouvider Limited | — | 1 | 1 |
| AS208051GB | SR2COM SR2 Communications Limited | — | 32 | 2 |
| AS199129GB | DIRECTCONNECT-AS Direct Connect (ISP) Ltd | — | 1 | 1 |
| AS200927GB | ProxyOmega ProxyOmega LTD | — | 65.5K | 1 |
| AS47326GB | KTT-CARRIER-ASN KTT Carrier Limited | — | 65.6K | 3 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 22 | 6 |
| AS197166GB | GOTSCHNA-AS Gotschna Limited | — | 2 | 2 |
| AS202776GB | Moeclub MOECLUB LTD | — | 7 | 7 |
| AS56802GB | DPKGSOFT-AS DpkgSoft International Limited | — | 1 | 1 |
| AS60257GB | OB-Telecom-Limited TalkTalk Communications Limited | — | — | 0 |
| AS214749GB | PAW James Cahill | — | 7 | 7 |
| AS204660GB | Tiger-Technologies-Limited Tiger Technologies Limited | — | 1 | 1 |
| AS214592GB | GLADELIGHT Gladelight Limited | — | 17 | 2 |
| AS214160GB | SHREE Shreejal Maharjan | — | 3 | 3 |
| AS204931GB | PNOSOLUTIONS-AS PNO Solutions Limited | — | 8 | 2 |
| AS215619GB | RCD-AS RED COKE DEVELOPMENT LTD | — | 3 | 3 |
| AS213026GB | GWILKINSON George Wilkinson | — | 2 | 2 |
| AS215158GB | SIXNET-OP2 Sixnet Operation Ltd | — | 65.5K | 1 |
| AS205909GB | Phystrax-Network Phystrax Ltd | — | 64 | 1 |
| AS214018GB | IIC-AS INTERNET INTELLIGENCE COMPANY LTD | — | 1 | 1 |
| AS204789GB | BizbetaLTD BIZBETA LTD | — | 69.2K | 19 |
| AS201824GB | stat-cons-as STAT CONSULTING LTD | — | 1 | 1 |