Autonomous system
AS21320 GEANT_IAS_VRF
Unclassified RIPE
Summary
GEANT
education research transit netherlands
GEANT_IAS_VRF is operated by GEANT Vereniging.
What it's used for
- The address space carries research and education traffic, evidenced by the reverse DNS entry
lt-20965-21320.rt1.kie.ua.geant.netand the netnameGEANT_IAS_VRF. - The AS announces 1024 IPv4 addresses across 1 prefix while maintaining 154 observed neighbours, a ratio that indicates a transit or interconnection role rather than a large access network.
Notable
- Registrants for the announced prefix include GEANT Operations, GEANT Vereniging, and GEANT CERT (formerly DANCERT), which align with the registry holder.
- The address inventory consists of a single /22 block (83.97.88.0/22) located in the Netherlands, with no IPv6 prefixes currently announced.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 17 exchanges in 17 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.192.173 |
| LINX LON1 | London, United Kingdom | 195.66.226.161 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.210.137 |
| Milan Internet Exchange | Milan, Italy | 217.29.66.183 |
| DE-CIX Madrid | Madrid, Spain | 185.1.192.126 |
| NIX.CZ - Neutral Internet eXchange for the Czech Republic | Prague, Czech Republic | 91.210.16.189 |
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.172 |
| Bulgarian Internet eXchange | Sofia, Bulgaria | 193.169.199.145 |
Transit providers
8 upstream, 39 downstream and 94 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NL | Netherlands | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS21320- Registry name
- GEANT_IAS_VRF
- Registrant
- DANTE-MNT
- Abuse contact
- cert@geant.org
- Registered
- 2001-10-31
- Last changed
- 2026-06-25
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS21320
- ASPA
- 3 declared providers
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS21320
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere