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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.
3,134 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 | 368 |
| AS212238GB | CDNEXT Datacamp Limited | 1.1M | 4,229 |
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| 0 |
| AS204291GB | pinguin Thomas McLoughlin | — | 337 | 7 |
| AS216149GB | DomainR Domain Recovery Limited | — | — | 0 |
| AS210387GB | GUARDY Guardy Limited | — | 4.1K | 1 |
| AS25061GB | ANLX-UK Associated Networks (UK) Limited | — | — | 0 |
| AS213262GB | Moe-Network Moe Overflow Electric Limited | — | 22 | 6 |
| AS215363GB | Wles Wles Technologies Ltd | — | 257 | 2 |
| AS197452GB | TelstraInt32bittemp TELSTRA UK LIMITED | — | — | 0 |
| AS199984GB | BLRM BLRM LTD | — | — | 0 |
| AS58007GB | Witine Witine Limited | — | 1 | 1 |
| AS206335GB | HUDSON-GLOBAL-RESOURCES-LTD Morgan Philips UK Limited | — | — | 0 |
| AS208612GB | AS-KURT Kurt McLester | — | — | 0 |
| AS215631GB | qxtellimited QXTEL Limited | — | — | 0 |
| AS48987GB | JYANGNET Jiaxun Yang | — | 1 | 1 |
| AS203945GB | ThomasFranklin-AS Thomas Franklin | — | — | 0 |
| AS43006GB | DIGITAL-REALTY-IE Digital Realty (UK) Limited | — | — | 0 |
| AS48562GB | EQUINIX-CLOUD-EXCHANGE-DUBAI-ASN EQUINIX (SERVICES) LIMITED | — | — | 0 |
| AS60677GB | DLG DL Insurance Services Limited | — | — | 0 |
| AS60945GB | VELOXSERV-LEGACY VeloxServ Communications Ltd | — | — | 0 |
| AS199066GB | DATA8-AS Data8 Limited | — | — | 0 |
| AS199185GB | PLUSLAYER PLUSLAYER TECHNOLOGIES LTD | — | — | 0 |
| AS48910GB | INAP-FRA PACKETFABRIC (UK) LTD | — | — | 0 |
| AS203691GB | FastNetMon FastNetMon LTD | — | — | 0 |
| AS39530GB | parker James Parker | — | — | 0 |
| AS206900GB | APLNET Applecross Community Company | — | — | 0 |
| AS208886GB | RIPL-AS Rhodes Island Pharmaceutical Ltd | — | — | 0 |
| AS211097GB | EASYGO-AS EASYGO SOLUTIONS LP | — | — | 0 |
| AS218903GB | VANDRIQ VANDRIQ LTD | — | — | 0 |
| AS8550GB | LONAP-MLP LONAP Ltd | — | — | 0 |
| AS12433GB | ORBTALK Telappliant Limited | — | — | 0 |
| AS30897GB | Pentagon-Systems RDS Global Limited | — | — | 0 |
| AS29478GB | JUNESTA Karl Dyson | — | 2 | 2 |
| AS34407GB | WAVECREST-AS01 Wavecrest Networks Limited | — | — | 0 |
| AS206792GB | ZACH Zachary Buller | — | 16 | 1 |
| AS211597GB | Litfibre Lit Fibre Group Ltd. | — | — | 0 |
| AS12708GB | OneTel-AS TalkTalk Communications Limited | — | — | 0 |
| AS219541GB | STAUS-AS STAUS LTD | — | — | 0 |
| AS218818GB | WBTECH WB TECH SYSTEMS LTD | — | — | 0 |
| AS214293GB | BudgetD BUDGET DOMAINS LTD | — | — | 0 |
| AS213210GB | kingslanding-as Richard-Connon | — | 1 | 1 |
| AS199535GB | com Bet Invest LTD | — | — | 0 |
| AS215619GB | RCD-AS RED COKE DEVELOPMENT LTD | — | 3 | 3 |
| AS8401GB | PROMONTORIA-AS Promontoria Ltd | — | — | 0 |
| AS202194GB | HORDEN-ENGINEERING Horden Engineering Limited | — | 1 | 1 |
| AS42902GB | GLOBECONNECT Clouvider Limited | — | — | 0 |
| AS216157GB | SIXNET-OP Sixnet Operation Ltd | — | 65.5K | 1 |
| AS218815GB | PKTECHGURUS PK TECH GURUS LTD | — | — | 0 |