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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 |
| — |
| 1 |
| 1 |
| AS47509GB | WT70-AS Wai-Wah Tang | — | 20 | 12 |
| AS211879GB | NJRYCE Nicholas Ryce | — | 1 | 1 |
| AS214749GB | PAW James Cahill | — | 6 | 6 |
| AS207529GB | NyanLoliNetwork NYANLOLI LTD | — | 594 | 20 |
| AS199794GB | EMO-AS EMOCLOUD LTD | — | 528 | 3 |
| AS51939GB | TerraMC Terra Management Consulting Ltd | — | 10 | 10 |
| AS214931GB | ALUE-NET ALUE NETWORK LIMITED | — | 1 | 1 |
| AS203054GB | ORG-TCL96-RIPE TownFibre Connect Ltd | — | 1 | 1 |
| AS204446GB | HELLOMOUSE Hellomouse Ltd | — | 5 | 5 |
| AS56802GB | DPKGSOFT-AS DpkgSoft International Limited | — | 1 | 1 |
| AS210338GB | PIXSAL-AS Kieran Breeze | — | 3 | 3 |
| AS35196GB | IH-TRANSIT-AS FIRST SERVER LIMITED | — | 65.5K | 2 |
| AS204375GB | Adam-Goodenough Adam Goodenough | — | 17 | 2 |
| AS58285GB | ASSIXOP Sixnet Operation Ltd | — | 65.8K | 2 |
| AS209808GB | LUKE Luke James | — | 64 | 1 |
| AS58148GB | IRONSIDE Ironside Systems Ltd. | — | 1 | 1 |
| AS205649GB | TOSLER-NET Shaun Tosler | — | 1 | 1 |
| AS212437GB | ADL ADT Defence Limited | — | 524.3K | 1 |
| AS211035GB | PHANTOM-HIVE-AS PHANTOM HIVE NETWORK LTD | — | 17 | 17 |
| AS213673GB | WAISE-AS WAISE EUROPE LTD | — | 320 | 5 |
| AS198557GB | ONETTL George French | — | 1 | 1 |
| AS25085GB | ALUE-NET ALUE NETWORK LIMITED | — | 8 | 8 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 22 | 6 |
| AS215158GB | SIXNET-OP2 Sixnet Operation Ltd | — | 65.5K | 1 |
| AS213729GB | RikkiNet Rikki Network Limited | — | 1 | 1 |
| AS202751GB | BGP_AS Christopher Edwards | — | 1 | 1 |
| AS213982GB | DISTRICTB-AS Callum Bennett | — | 17 | 2 |
| AS205383GB | PERRYNET Rhys Perry | — | 1 | 1 |
| AS213767GB | RH Richard Humphries | — | 1 | 1 |
| AS199804GB | TFES-AS THE FIRST EAST STAR LTD | — | 1 | 1 |
| AS200840GB | chronara-ai-8663 Chronara AI Ltd | — | 1 | 1 |
| AS212121GB | VAGUE James Ray | — | 4 | 4 |
| AS205648GB | VirgoCube_Limited VirgoCube Limited | — | 256 | 1 |
| AS215368GB | CONNORMCF Connor McFarlane | — | 1 | 1 |
| AS200707GB | APPMAIL Integrated Digital Services Ltd | — | 65.5K | 1 |
| AS214160GB | SHREE Shreejal Maharjan | — | 3 | 3 |
| AS204931GB | PNOSOLUTIONS-AS PNO Solutions Limited | — | 8 | 2 |
| AS215363GB | Wles Wles Technologies Ltd | — | 257 | 2 |
| AS198768GB | OASISINFO-AS OASIS INFOTECH LIMITED | — | 2 | 2 |
| AS198657GB | GOHEGAN-NET Kai Gohegan | — | 257 | 2 |
| AS209600GB | LIVEFIXGROUP Livefix Technical Solutions Group Limited | — | 32 | 2 |
| AS204293GB | TinyHomeLab TinyHomeLab Ltd | — | 1 | 1 |
| AS200455GB | HOTARU-AS HOTARU NETWORK LTD. | — | 178 | 13 |
| AS213436GB | NIUZI_DADA_CLOUD NIUZI DADA CLOUD LIMITED | — | 1K | 1 |
| AS205058GB | MAEEKO MAGICAL NETWORK LIMITED | — | 5 | 4 |
| AS213771GB | PLATANO-NETWORKS DCC TECH LTD | — | 12 | 4 |