AS31563
Hellenic National Meteorological Service
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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 195.251.244.0/23 | 512 |
2.1%
|
Hellenic National Meteorological Service | GR | — | — |
| 195.251.246.0/24 | 256 |
3.5%
|
Hellenic National Meteorological Service | GR | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS31563 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 |
|---|---|---|
| 195.251.245.0/24 | 19,978 | 2026-08-04 18:08:59 |
| 195.251.244.0/24 | 12,091 | 2026-08-04 18:08:59 |
| 195.251.246.0/24 | 12,079 | 2026-08-04 18:08:59 |
Frequently Asked Questions
What is AS31563?
AS31563 is an Autonomous System Number assigned to Hellenic National Meteorological Service. 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 AS31563 announce?
AS31563 announces 768 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Greece.
Who operates AS31563?
AS31563 is operated by Hellenic National Meteorological Service. The organization is based in Greece. You can view all IP ranges and related ASNs on the organization page.
What country is AS31563 registered in?
AS31563 is registered in Greece. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
