Autonomous system
AS5400: British Telecommunications (International)
United Kingdom
Estimated users is a published estimate of how many people use this network, extrapolated from 2,107 observations over a 60 day window. Large operators often run several networks, so a low figure can mean their customers reach the internet through a sibling network.
What this tells you
- Its space resolves to 9 countries, concentrated almost entirely in United Kingdom (88% of the IPv4 space), so it is effectively a single-market network despite the spread.
- An estimated 1,205 people using this network are in Netherlands, one of the 11 countries it serves, <0.1% of everyone online there.
Countries in this space
Space we can place in a country covers 100% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space.
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| United Kingdom | 88% | 99% | |
| United States | 9% | <0.1% | |
| Finland | 1% | - | |
| Luxembourg | 0.6% | - | |
| India | 0.3% | - | |
| Germany | 0.2% | 0.9% | |
| Netherlands | 0.2% | - | |
| Everything else (2 more) | 0.1% | - |
Organisations holding assignments here
Registered organisations account for 90% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space. Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.
| Organisation | IPv4 share | IPv6 share | |
|---|---|---|---|
| British Telecommunications Limited | 94% | 99% | |
| communications networking services Private Unlimited Company | 3% | - | |
| Amcor Flexibles Finland OY | 1% | - | |
| BT Global Services Luxembourg S.a.r.l | 0.6% | - | |
| BT Global Communication India | 0.3% | - | |
| FedEx Express International B.V. | 0.2% | - | |
| KANTAR DORMANT 3 LIMITED | 0.1% | - | |
| Thales Deutschland GmbH | <0.1% | 0.9% | |
| Everything else (8 more) | 0.4% | <0.1% |
Anonymizer signals
None of this space carries an anonymiser or hosting flag.
Every figure on this page is also JSON: /api/v2/directory/asn/5400. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.