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AS3221Estonian Education and Research Network

EstoniaRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS3221 (Estonian Education and Research Network), an access network registered in Estonia with RIPE NCC, originates 3 IPv4 prefixes covering 66.8k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 3,335th-largest of the 79,525 networks we see originating IPv4, and the 3rd-largest of 172 in Estonia. It is seen behind 5 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS2603 (NORDUnet), and in front of 3 downstream networks. 75% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

66.8k

IPv6 /64s

4.3B

Upstream graph

The networks AS3221 is seen behind, one and two hops out, drawn from real AS paths.

AS3221Toward the internet core
Upstream graph for AS3221: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3221Estonian Educatio…This networkAS1299Arelion (fka. Tel…AS2603NORDUnetAS6939Hurricane Electri…AS20965GEANT VerenigingAS21320GEANT VerenigingAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3491PCCW Global (HK) …AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS293ESnetAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS3221 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

17

adjacent networks

Upstreams
529%
Peers
953%
Downstreams
318%

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

Upstreams of AS3221
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer41696
AS2603NORDUnetDKPeer15379
AS1299Arelion (fka. Telia Carrier)SEPeer5024
AS21320GEANT VerenigingNLPeer2813
AS20965GEANT VerenigingNLPeer72

Prefixes

The largest blocks AS3221 originates, widest first.

Largest prefixes originated by AS3221
PrefixAddressesVisibility
193.40.0.0/1665.5k81/81
171.22.244.0/221k81/81
44.30.195.0/2425680/81
2001:bb8::/324.3B × /6464/64

Routing health

How AS3221'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

  • Valid75.0%3
  • Invalid0.0%0
  • No ROA25.0%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

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.