asn.dev

Autonomous system

AS31563 HNMS-AS

Unclassified RIPE

IPv4 addresses 768 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly GR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Hellenic National Meteorological Service

Greece · AI-generated

government meteorology greece

The AS handle HNMS-AS is held by the Hellenic National Meteorological Service.

What it's used for

  • The address space carries infrastructure for the national meteorological agency, identified by the netname HNMS and registrant HNMS NOC on both announced IPv4 prefixes.
  • The AS announces 768 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a small, self-contained government network rather than a transit or access provider.

Notable

  • The registrants for both IPv4 prefixes are HNMS NOC, which aligns directly with the AS holder name Hellenic National Meteorological Service.
  • The address inventory consists of two contiguous IPv4 blocks (195.251.244.0/23 and 195.251.246.0/24) and a single IPv6 /47, reflecting a modest internal estate typical of a specialized government agency.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5408National Infrastructures for Research and Technology S.A.250
AS3329Vodafone-panafon Hellenic Telecommunications Company SA4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 768 addresses IPv6 1 prefixes

CountryNamePrefixes
GRGreece3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS31563
Registry name
HNMS-AS
Registrant
AS31563-MNT
Abuse contact
abusevfgr@vodafone.com
Registered
2004-06-14
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
6 authorising AS31563
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
6 naming AS31563

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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

Cross-check