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AS3319User Association of Ukrainian Research and Academic Network URAN

UkraineRegistryRIPE NCC

As of 11th November 2026, AS3319 (User Association of Ukrainian Research…), a network registered in Ukraine with RIPE NCC, originates 44 IPv4 prefixes covering 14.6k addresses. By IPv4 address space that makes it the 8,744th-largest of the 80,743 networks we see originating IPv4, and the 89th-largest of 1,549 in Ukraine. It is seen behind 1 upstream network, most often AS12687 (User Association of Ukrainian Research…). 95% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 89% 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

44

IPv6 prefixes

0

IPv4 addresses

14.6k

IPv6 /64s

0

Upstream graph

The networks AS3319 is seen behind, one and two hops out, drawn from real AS paths.

AS3319Toward the internet core
Upstream graph for AS3319: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3319User Association …This networkAS12687User Association …AS9002RETN LimitedAS21320GEANT Vereniging

Networks observed one and two hops upstream of AS3319 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS3319
NetworkCountryRelationshipPathsVantage pts
AS12687User Association of Ukrainian Research and Academic Network URANUAPeer2,98276

Prefixes

All 44

The largest blocks AS3319 originates, widest first.

Largest prefixes originated by AS3319
PrefixAddressesVisibility
77.47.152.0/221k75/76
77.47.248.0/221k1/76
195.178.132.0/221k76/76
195.178.152.0/221k76/76
195.178.144.0/2351276/76
77.47.142.0/242561/76
77.47.154.0/2425612/76
77.47.155.0/2425612/76
77.47.210.0/2425676/76
77.47.211.0/2425676/76

Routing health

How AS3319'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

  • Valid95.5%42
  • Invalid2.3%1
  • No ROA2.3%1

Propagation

  • Globally propagated90% of full-feed peers or more88.6%39
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%11.4%5

Prefix sizes

IPv4 — 44 prefixes

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.