subnet.im

AS204861Codisa Telco Solutions S.L.

SpainRegistryRIPE NCC

As of 25th October 2026, AS204861 (Codisa Telco Solutions S.L.), a network registered in Spain with RIPE NCC, originates 4 IPv4 prefixes covering 2k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 25,327th-largest of the 79,683 networks we see originating IPv4, and the 392nd-largest of 928 in Spain. It is seen behind 13 upstream networks, most often AS29119 (AIRE NETWORKS DEL MEDITERRANEO SL…) and AS174 (Cogent Communications, LLC), and in front of 6 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

4

IPv6 prefixes

1

IPv4 addresses

2k

IPv6 /64s

34.4B

Upstream graph

The networks AS204861 is seen behind, one and two hops out, drawn from real AS paths.

AS204861Toward the internet core
Upstream graph for AS204861: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS204861Codisa Telco Solu…This networkAS174Cogent Communicat…AS6939Hurricane Electri…AS13030Init7 (Switzerlan…AS24482SG.GSAS29119AIRE NETWORKS DEL…AS151326DCConnect Communi…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS56662Marcin GondekAS38623Metfone (Viettel …AS6453TATA Communicatio…

Networks observed one and two hops upstream of AS204861 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

53

adjacent networks

Upstreams
1325%
Peers
3464%
Downstreams
611%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS204861
NetworkCountryRelationshipPathsVantage pts
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALESPeer1,906112
AS174Cogent Communications, LLCUSPeer46860
AS6939Hurricane Electric LLCUSPeer12015
AS13030Init7 (Switzerland) Ltd.CHPeer682
AS24482SG.GSSGPeer464
AS25091IP-Max SACHPeer413
AS34549meerfarbig GmbH & Co. KGDEPeer352
AS24940Hetzner Online GmbHDEPeer332
AS49544i3D.net B.VNLPeer312
AS4230Claro (Embratel)BRPeer292

Prefixes

The largest blocks AS204861 originates, widest first.

Largest prefixes originated by AS204861
PrefixAddressesVisibility
2.57.4.0/221k75/76
185.121.106.0/2351275/76
185.237.172.0/2425676/76
185.237.175.0/2425675/76
2a0c:1a80::/2934.4B × /6462/63

Routing health

How AS204861'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 26th Sept 2026.

No announcement by AS204861 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.