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AS3255Ukrainian Academic and Research Network

UkraineRegistryRIPE NCCTypeEyeball

As of 10th November 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 1,541st-largest of the 80,733 networks we see originating IPv4, and the 10th-largest of 1,549 in Ukraine. It is seen behind 22 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS2914 (NTT America, Inc.), and in front of 184 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 3 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 networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS49544i3D.net B.VAS215859Hetzner Cloud - S…AS398465Rackdog LLCAS20130Depaul UniversityAS132337Axclusive

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

462

adjacent networks

Upstreams
225%
Peers
25655%
Downstreams
18440%

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

Upstreams of AS3255
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer43,287123
AS2914NTT America, Inc.USPeer5,53723
AS1299Arelion (fka. Telia Carrier)SEPeer4,01638
AS3257GTT Communications Inc.USPeer3,09367
AS3356Lumen (Level 3)USPeer2,76430
AS174Cogent Communications, LLCUSPeer2,51939
AS9002RETN LimitedGBPeer2,31971
AS6762Telecom Italia Sparkle (Seabone)ITPeer86715
AS24482SG.GSSGPeer7284
AS24940Hetzner Online GmbHDEPeer6422

Prefixes

All 281

The largest blocks AS3255 originates, widest first.

Largest prefixes originated by AS3255
PrefixAddressesVisibility
194.44.0.0/1665.5k15/76
194.44.192.0/1816.4k13/76
188.191.32.0/204.1k76/76
213.174.8.0/212k76/76
45.152.72.0/221k14/76
91.211.132.0/221k76/76
185.101.216.0/221k76/76
185.172.184.0/221k76/76
185.197.76.0/221k76/76
185.204.68.0/221k76/76

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 12th Oct 2026.

No announcement by AS3255 started or stopped in this period.

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