AS51776Sportradar AG
SwitzerlandRegistryRIPE NCCAs of 11th November 2026, AS51776 (Sportradar AG), a network registered in Switzerland with RIPE NCC, originates 9 IPv4 prefixes covering 2.3k addresses. By IPv4 address space that makes it the 24,592nd-largest of the 80,747 networks we see originating IPv4, and the 219th-largest of 746 in Switzerland. It is seen behind 23 upstream networks, most often AS32787 (Akamai (Prolexic)) and AS2914 (NTT America, Inc.), and in front of 1 downstream network. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS51776 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS51776 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
137
adjacent networks
- Upstreams
- 2317%
- Peers
- 11382%
- Downstreams
- 11%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS32787Akamai (Prolexic) |  US | Peer | 433 | 56 |
| AS2914NTT America, Inc. | US | Peer | 179 | 76 |
| AS8220COLT |  GB | Peer | 81 | 22 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 74 | 19 |
| AS8447A1 Telekom Austria AG |  AT | Peer | 47 | 21 |
| AS6939Hurricane Electric LLC | US | Peer | 12 | 3 |
| AS49544i3D.net B.V |  NL | Peer | 6 | 1 |
| AS24940Hetzner Online GmbH |  DE | Peer | 6 | 1 |
| AS6797GlobalConnect AB | SE | Peer | 5 | 1 |
| AS37100SEACOM Limited |  MU | Peer | 5 | 1 |
Prefixes
The largest blocks AS51776 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 87.238.137.0/24 | 256 | 76/76 |
| 87.238.141.0/24 | 256 | 76/76 |
| 87.238.142.0/24 | 256 | 76/76 |
| 91.199.175.0/24 | 256 | 75/76 |
| 185.132.128.0/24 | 256 | 76/76 |
| 185.188.52.0/24 | 256 | 75/76 |
| 185.188.53.0/24 | 256 | 75/76 |
| 185.188.54.0/24 | 256 | 76/76 |
| 185.188.55.0/24 | 256 | 76/76 |
Routing health
How AS51776's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid100.0%9
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more100.0%9
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 9 prefixes
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS51776 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.