AS31577AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL
SpainRegistryRIPE NCCTypeEyeballAs of 11th November 2026, AS31577 (AIRE NETWORKS DEL MEDITERRANEO SL…), an access network registered in Spain with RIPE NCC, originates 23 IPv4 prefixes covering 17.7k addresses. By IPv4 address space that makes it the 7,708th-largest of the 80,747 networks we see originating IPv4, and the 69th-largest of 937 in Spain. It is seen behind 1 upstream network, most often AS29119 (AIRE NETWORKS DEL MEDITERRANEO SL…), and in front of 5 downstream networks. 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 AS31577 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS31577 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
12
adjacent networks
- Upstreams
- 18%
- Peers
- 650%
- Downstreams
- 542%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | ES | Peer | 3,957 | 124 |
Prefixes
The largest blocks AS31577 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 181.201.128.0/20 | 4.1k | 76/76 |
| 5.35.200.0/21 | 2k | 76/76 |
| 31.3.120.0/21 | 2k | 76/76 |
| 83.136.184.0/21 | 2k | 76/76 |
| 95.129.112.0/21 | 2k | 76/76 |
| 185.23.120.0/22 | 1k | 76/76 |
| 5.35.201.0/24 | 256 | 76/76 |
| 5.35.202.0/24 | 256 | 76/76 |
| 5.35.203.0/24 | 256 | 76/76 |
| 5.35.204.0/24 | 256 | 76/76 |
Routing health
How AS31577'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%23
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more100.0%23
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
Recent changes
Announcements that started or stopped since 12th Oct 2026.
- Announced181.201.128.0/205th Nov 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.