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AS205941Lungu Stefan Gabriel

RomaniaRegistryRIPE NCCTypeCarrier

As of 26th September 2026, AS205941 (Lungu Stefan Gabriel), a transit carrier registered in Romania with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 13 IPv6 prefixes. By IPv4 address space that makes it the 59,122nd-largest of the 79,516 networks we see originating IPv4, and the 493rd-largest of 903 in Romania. It is seen behind 30 upstream networks, most often AS215114 (Stevan Durand--L'Hours t/a SLBCLOUD) and AS6204 (TMRC GROUP SRL), and in front of 22 downstream networks. 93% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 93% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

13

IPv4 addresses

256

IPv6 /64s

4.6B

Upstream graph

The networks AS205941 is seen behind, one and two hops out, drawn from real AS paths.

AS205941Toward the internet core
Upstream graph for AS205941: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS205941Lungu Stefan Gabr…This networkAS6204TMRC GROUP SRLAS49600NEAR IP, S.L.AS210464ANDREW KRISTULIAS215114Stevan Durand--L'…AS399486VirtuoAS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS62000SERVERD SASAS199524Gcore S.A.AS3257GTT Communication…AS9002RETN Limited

Networks observed one and two hops upstream of AS205941 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

197

adjacent networks

Upstreams
3015%
Peers
14574%
Downstreams
2211%

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

Upstreams of AS205941
NetworkCountryRelationshipPathsVantage pts
AS215114Stevan Durand--L'Hours t/a SLBCLOUDFRPeer70267
AS6204TMRC GROUP SRLROPeer60355
AS399486VirtuoCAPeer28030
AS210464ANDREW KRISTULIALPeer268133
AS49600NEAR IP, S.L.ESPeer23948
AS216456Dcent Investments BVNLPeer17631
AS214757Jakub KrsaCZPeer17636
AS6939Hurricane Electric LLCUSPeer11129
AS213753InterEdge B.V.NLPeer647
AS214762Sebastian Stefanek trading as MatHost.euPLPeer6363

Prefixes

The largest blocks AS205941 originates, widest first.

Largest prefixes originated by AS205941
PrefixAddressesVisibility
142.249.174.0/2425680/81
2a10:fa82::/324.3B × /6463/64
2a13:c8c4::/36268M × /6463/64
2a10:fa82:fa00::/4016.8M × /6463/64
2a10:fa82:fc00::/4016.8M × /6463/64
2a10:fa82:fe00::/4016.8M × /6463/64
2a10:fa82:ff00::/4016.8M × /6462/64
2a13:c8c4:f500::/4016.8M × /642/64
2a10:fa82:fef0::/441M × /6463/64
2602:f50c:c00::/4865.5k × /6463/64

Routing health

How AS205941'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

  • Valid92.9%13
  • Invalid0.0%0
  • No ROA7.1%1

Propagation

  • Globally propagated90% of full-feed peers or more92.9%13
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%7.1%1

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 13 prefixes

  • /324.3B × /647.7%1
  • /36268M × /647.7%1
  • /4016.8M × /6438.5%5
  • /441M × /647.7%1
  • /4865.5k × /6438.5%5

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced2a13:c8c4:666::/4822nd Sept 2026
  • Withdrawn2a10:fa82:f700::/4021st Sept 2026
  • Withdrawn44.30.106.0/2421st Sept 2026
  • Withdrawn87.86.93.0/2421st Sept 2026

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