subnet.im

AS12338Euskaltel S.A.

SpainRegistryRIPE NCCTypeEyeball

As of 29th September 2026, AS12338 (Euskaltel S.A.), an access network registered in Spain with RIPE NCC, originates 123 IPv4 prefixes covering 688k addresses and 22 IPv6 prefixes. By IPv4 address space that makes it the 580th-largest of the 79,607 networks we see originating IPv4, and the 8th-largest of 925 in Spain. It is seen behind 5 upstream networks, most often AS15704 (XTRA TELECOM S.A.) and AS6453 (TATA Communications (America) Inc), and in front of 19 downstream networks. 97% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 81% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

123

IPv6 prefixes

22

IPv4 addresses

688k

IPv6 /64s

34.5B

Upstream graph

The networks AS12338 is seen behind, one and two hops out, drawn from real AS paths.

AS12338Toward the internet core
Upstream graph for AS12338: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS12338Euskaltel S.A.This networkAS174Cogent Communicat…AS6453TATA Communicatio…AS8220COLTAS15704XTRA TELECOM S.A.AS49544i3D.net B.VAS151326DCConnect Communi…AS35280F5 Networks SARLAS1299Arelion (fka. Tel…AS15576NTS workspace AGAS3356Lumen (Level 3)AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS12338 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

52

adjacent networks

Upstreams
510%
Peers
2854%
Downstreams
1937%

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

Upstreams of AS12338
NetworkCountryRelationshipPathsVantage pts
AS15704XTRA TELECOM S.A.ESPeer6,812147
AS6453TATA Communications (America) IncUSPeer1,903110
AS174Cogent Communications, LLCUSPeer1,735141
AS49544i3D.net B.VNLPeer1912
AS8220COLTGBPeer1522

Prefixes

All 145

The largest blocks AS12338 originates, widest first.

Largest prefixes originated by AS12338
PrefixAddressesVisibility
83.213.0.0/1665.5k82/82
85.84.0.0/1665.5k82/82
85.85.0.0/1665.5k82/82
85.86.0.0/1665.5k82/82
85.87.0.0/1665.5k82/82
37.218.0.0/1732.8k82/82
62.99.0.0/1732.8k82/82
81.9.128.0/1732.8k82/82
82.130.128.0/1732.8k82/82
212.142.128.0/1732.8k82/82

Routing health

How AS12338'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

  • Valid97.2%141
  • Invalid0.0%0
  • No ROA2.8%4

Propagation

  • Globally propagated90% of full-feed peers or more80.7%117
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%19.3%28

Prefix sizes

IPv4 — 123 prefixes

IPv6 — 22 prefixes

  • /2934.4B × /644.5%1
  • /4016.8M × /6450.0%11
  • /4865.5k × /6445.5%10

Recent changes

Announcements that started or stopped since 30th Aug 2026.

  • Announced2a00:7b00::/4028th Sept 2026
  • Withdrawn2a00:7b00::/4028th Sept 2026

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