Autonomous system
AS3561: Lumen (ex. Savvis)
United States · hosting / infrastructure
Estimated users is a published estimate of how many people use this network, extrapolated from 418 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
- Classified as hosting infrastructure. The handful of users measured behind it are people browsing from servers, not subscribers.
- Its space resolves to 25 countries, concentrated almost entirely in United States (97% of the IPv4 space), so it is effectively a single-market network despite the spread.
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 States | 97% | 100% | |
| United Kingdom | 1% | - | |
| Singapore | 0.8% | - | |
| Canada | 0.5% | - | |
| Australia | 0.5% | - | |
| Japan | 0.2% | - | |
| Everything else (19 more) | 0.2% | - |
Organisations holding assignments here
Registered organisations account for 1% of this network's IPv4 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.
Anonymizer signals
Flagged space covers 100% of this network's IPv4 space and 100% of its IPv6 space. The table below divides that space.
| Category | IPv4 share | IPv6 share | |
|---|---|---|---|
| Datacenter | 100% | 100% | |
| Open proxy | 0.8% | - | |
| VPN | 0.5% | - |
Every figure on this page is also JSON: /api/v2/directory/asn/3561. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.