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AS50581Ukrainian Telecommunication Group LLC

UkraineRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS50581 (Ukrainian Telecommunication Group LLC), an access network registered in Ukraine with RIPE NCC, originates 78 IPv4 prefixes covering 21.8k addresses and 19 IPv6 prefixes. By IPv4 address space that makes it the 6,707th-largest of the 79,525 networks we see originating IPv4, and the 57th-largest of 1,521 in Ukraine. It is seen behind 43 upstream networks, most often AS9002 (RETN Limited) and AS5405 (Inter.link GmbH), and in front of 37 downstream networks. None of its announcements have a valid RPKI ROA. 94% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

78

IPv6 prefixes

19

IPv4 addresses

21.8k

IPv6 /64s

34.4B

Upstream graph

The networks AS50581 is seen behind, one and two hops out, drawn from real AS paths.

AS50581Toward the internet core
Upstream graph for AS50581: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS50581Ukrainian Telecom…This networkAS1299Arelion (fka. Tel…AS5405Inter.link GmbHAS6204TMRC GROUP SRLAS7713PT Telkom Indones…AS9002RETN LimitedAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3491PCCW Global (HK) …AS13237euNetworks GmbHAS2914NTT America, Inc.AS6453TATA Communicatio…AS51907Kanton Zug

Networks observed one and two hops upstream of AS50581 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

310

adjacent networks

Upstreams
4314%
Peers
23074%
Downstreams
3712%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 43.

Upstreams of AS50581
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer3,42237
AS5405Inter.link GmbHDEPeer2,71650
AS6204TMRC GROUP SRLROPeer2,576108
AS1299Arelion (fka. Telia Carrier)SEPeer1,74941
AS7713PT Telkom Indonesia TbkIDPeer5963
AS6939Hurricane Electric LLCUSPeer42616
AS18106Viewqwest Pte LtdSGPeer3414
AS38880Micron21 Datacentre Pty LtdAUPeer3372
AS28917Fiord Networks, UABLTPeer3336
AS8888xTom Pty LtdAUPeer2472

Prefixes

All 97

The largest blocks AS50581 originates, widest first.

Largest prefixes originated by AS50581
PrefixAddressesVisibility
2.58.204.0/221k81/81
195.211.228.0/221k81/81
176.122.120.0/2351281/81
31.43.33.0/2425681/81
31.43.34.0/2425681/81
31.43.35.0/2425681/81
31.43.36.0/2425681/81
31.43.37.0/2425681/81
31.43.38.0/2425681/81
31.43.39.0/2425681/81

Routing health

How AS50581'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%97

Propagation

  • Globally propagated90% of full-feed peers or more93.8%91
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%6.2%6

Prefix sizes

IPv4 — 78 prefixes

IPv6 — 19 prefixes

  • /2934.4B × /645.3%1
  • /441M × /645.3%1
  • /4865.5k × /6489.5%17

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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