AS210321Operadors Quilometre Zero S.L.
SpainRegistryRIPE NCCAs of 27th September 2026, AS210321 (Operadors Quilometre Zero S.L.), a network registered in Spain with RIPE NCC, originates 4 IPv4 prefixes covering 1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 35,811th-largest of the 79,525 networks we see originating IPv4, and the 559th-largest of 926 in Spain. It is seen behind 15 upstream networks, most often AS60171 (AFR-IX TELECOM S.A.) and AS29119 (AIRE NETWORKS DEL MEDITERRANEO SL…), and in front of 12 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 AS210321 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS210321 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
69
adjacent networks
- Upstreams
- 1522%
- Peers
- 4261%
- Downstreams
- 1217%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS60171AFR-IX TELECOM S.A. | ES | Peer | 3,238 | 100 |
| AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | ES | Peer | 2,676 | 89 |
| AS3257GTT Communications Inc. |  US | Peer | 1,362 | 65 |
| AS6939Hurricane Electric LLC | US | Peer | 102 | 13 |
| AS24940Hetzner Online GmbH |  DE | Peer | 64 | 2 |
| AS25091IP-Max SA |  CH | Peer | 64 | 2 |
| AS49544i3D.net B.V |  NL | Peer | 64 | 2 |
| AS14537Continent 8 LLC | US | Peer | 54 | 1 |
| AS34549meerfarbig GmbH & Co. KG | DE | Peer | 27 | 3 |
| AS24482SG.GS |  SG | Peer | 23 | 2 |
Prefixes
The largest blocks AS210321 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 185.242.248.0/24 | 256 | 80/81 |
| 185.242.249.0/24 | 256 | 80/81 |
| 185.242.250.0/24 | 256 | 81/81 |
| 185.242.251.0/24 | 256 | 81/81 |
| 2a0c:f780::/29 | 34.4B × /64 | 64/64 |
Routing health
How AS210321'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%5
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more100.0%5
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 4 prefixes
IPv6 — 1 prefixes
- /2934.4B × /64100.0%1
Recent changes
Announcements that started or stopped since 28th Aug 2026.
No announcement by AS210321 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.