Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 12 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, VIX, AMS-IX, LINX LON1: Main, MIX-IT, CIXP, INEX LAN1: INEX LAN1, NIX.CZ: Public peering VLAN, DE-CIX Marseille: DE-CIX Marseille Peering LAN, DE-CIX Madrid: DE-CIX Madrid Peering LAN, …
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21320 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 83.97.88.0/21 | 4,509 | 2026-07-31 10:23:34 |
Frequently Asked Questions
What is AS21320?
AS21320 is an Autonomous System Number assigned to GEANT Vereniging. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS21320 announce?
AS21320 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in The Netherlands.
Who operates AS21320?
AS21320 is operated by GEANT Vereniging. The organization is based in The Netherlands. You can view all IP ranges and related ASNs on the organization page.
What country is AS21320 registered in?
AS21320 is registered in The Netherlands. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
