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AS214205Cristian Tudor Marcus

RomaniaRegistryRIPE NCCTypeCarrier

As of 11th November 2026, AS214205 (Cristian Tudor Marcus), a transit carrier registered in Romania with RIPE NCC, originates 7 IPv6 prefixes. It is seen behind 18 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS214762 (Sebastian Stefanek trading as MatHost.eu), and in front of 9 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 86% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

7

IPv4 addresses

0

IPv6 /64s

459k

Upstream graph

The networks AS214205 is seen behind, one and two hops out, drawn from real AS paths.

AS214205Toward the internet core
Upstream graph for AS214205: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS214205Cristian Tudor Ma…This networkAS6939Hurricane Electri…AS44324MoeDove LLCAS208453Johan Karlsson (S…AS214757Jakub KrsaAS214762Sebastian Stefane…AS20130Depaul UniversityAS132337AxclusiveAS140227Hong Kong Communi…AS216211CYBERVERSE LLCAS3399Obenet ABAS35133Eranium B.V.AS6204INTERKVM HOST SRL

Networks observed one and two hops upstream of AS214205 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

123

adjacent networks

Upstreams
1815%
Peers
9678%
Downstreams
97%

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

Upstreams of AS214205
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer30460
AS214762Sebastian Stefanek trading as MatHost.euPLPeer6262
AS44324MoeDove LLCUSPeer6262
AS208453Johan Karlsson (SweHosting)SEPeer6161
AS214757Jakub KrsaCZPeer5114
AS199829Akronic Network LTDABRPeer4343
AS34927iFog GmbHCHPeer2020
AS214331Teske Virtual System LtdaBRPeer1919
AS207841Inferno Communications LtdGBPeer145
AS24940Hetzner Online GmbHDEPeer101

Prefixes

The largest blocks AS214205 originates, widest first.

Largest prefixes originated by AS214205
PrefixAddressesVisibility
2a0b:4e07:4c::/4865.5k × /6462/63
2a0b:4e07:4d::/4865.5k × /6420/63
2a0b:4e07:4e::/4865.5k × /6462/63
2a0b:4e07:4f::/4865.5k × /6462/63
2a13:c8c4:f100::/4865.5k × /6462/63
2a13:c8c4:f101::/4865.5k × /6462/63
2a13:c8c4:f102::/4865.5k × /6461/63

Routing health

How AS214205'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%7
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more85.7%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%14.3%1

Prefix sizes

IPv6 — 7 prefixes

  • /4865.5k × /64100.0%7

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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