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Autonomous System

AS2546

National Center of Scientific Research DEMOKRITOS

Announced IPs
62,976
CIDR prefixes
18
ASN
AS2546

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
143.233.0.0/18 16.4K
2.1%
National Center of Scientific Research DEMOKRITOS GR
143.233.96.0/19 8.2K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.128.0/19 8.2K
0.2%
National Center of Scientific Research DEMOKRITOS GR
143.233.224.0/19 8.2K
10.1%
National Center of Scientific Research DEMOKRITOS GR
143.233.80.0/20 4.1K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.160.0/20 4.1K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.208.0/20 4.1K
0.3%
National Center of Scientific Research DEMOKRITOS GR
143.233.72.0/21 2.0K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.192.0/21 2.0K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.64.0/22 1.0K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.176.0/22 1.0K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.200.0/22 1.0K
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.70.0/23 512
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.180.0/23 512
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.190.0/23 512
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.206.0/23 512
0.0%
National Center of Scientific Research DEMOKRITOS GR
143.233.69.0/24 256
1.2%
National Center of Scientific Research DEMOKRITOS GR
143.233.205.0/24 256
0.0%
National Center of Scientific Research DEMOKRITOS GR

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS2546 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
143.233.0.0/16 10,890 2026-07-24 13:54:53

Frequently Asked Questions

What is AS2546?

AS2546 is an Autonomous System Number assigned to National Center of Scientific Research DEMOKRITOS. 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 AS2546 announce?

AS2546 announces 63.0K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in Greece.

Who operates AS2546?

AS2546 is operated by National Center of Scientific Research DEMOKRITOS. The organization is based in Greece. You can view all IP ranges and related ASNs on the organization page.

What country is AS2546 registered in?

AS2546 is registered in Greece. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 14:55:31 UTC
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