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AS3255Ukrainian Academic and Research Network

UkraineRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS3255 (Ukrainian Academic and Research Network), an access network registered in Ukraine with RIPE NCC, originates 280 IPv4 prefixes covering 171k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 1,511th-largest of the 79,516 networks we see originating IPv4, and the 10th-largest of 1,521 in Ukraine. It is seen behind 21 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 173 downstream networks. 79% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 94% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

280

IPv6 prefixes

1

IPv4 addresses

171k

IPv6 /64s

4.3B

Upstream graph

The networks AS3255 is seen behind, one and two hops out, drawn from real AS paths.

AS3255Toward the internet core
Upstream graph for AS3255: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3255Ukrainian Academi…This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3257GTT Communication…AS6939Hurricane Electri…AS9002RETN LimitedAS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS6667Elisa OyjAS398465Rackdog LLCAS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS3255 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

439

adjacent networks

Upstreams
215%
Peers
24556%
Downstreams
17339%

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

Upstreams of AS3255
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer47,452131
AS1299Arelion (fka. Telia Carrier)SEPeer5,49232
AS174Cogent Communications, LLCUSPeer3,66741
AS3257GTT Communications Inc.USPeer3,06354
AS9002RETN LimitedGBPeer1,97474
AS3356Lumen (Level 3)USPeer1,82527
AS28917Fiord Networks, UABLTPeer1,78218
AS50263A-Systems Sp. z o.o.PLPeer1,66410
AS6762Telecom Italia Sparkle (Seabone)ITPeer1,45211
AS49544i3D.net B.VNLPeer5951

Prefixes

All 281

The largest blocks AS3255 originates, widest first.

Largest prefixes originated by AS3255
PrefixAddressesVisibility
194.44.0.0/1665.5k15/81
194.44.192.0/1816.4k13/81
188.191.32.0/204.1k81/81
213.174.8.0/212k81/81
45.152.72.0/221k13/81
91.211.132.0/221k81/81
185.101.216.0/221k81/81
185.172.184.0/221k81/81
185.197.76.0/221k81/81
185.204.68.0/221k81/81

Routing health

How AS3255'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

  • Valid78.6%221
  • Invalid1.1%3
  • No ROA20.3%57

Propagation

  • Globally propagated90% of full-feed peers or more93.6%263
  • Partially propagated40% to 90%0.4%1
  • Seen by few peersUnder 40%6.0%17

Prefix sizes

IPv4 — 280 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn176.120.98.0/2421st Sept 2026

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