asn.dev

Autonomous system

AS57350 EUROPEAN-MARITIME-SAFETY-AGENCY-AS EMSA

Unclassified RIPE

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PT
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

European Maritime Safety Agency

Portugal · AI-generated

government eu-agency maritime lisbon

EUROPEAN-MARITIME-SAFETY-AGENCY-AS is operated by the European Maritime Safety Agency.

What it's used for

  • The address space carries the agency's own infrastructure, as indicated by netnames PT-EMSA-20131126 and NET-EUROPEAN-MARITIME-SAFETY-AGENCY registered to the agency itself.
  • The AS announces 1536 IPv4 addresses across 2 prefixes with 3 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.
  • Traffic from this AS consists of office workers and internal systems for an EU agency headquartered in Lisbon, responsible for maritime safety and pollution prevention.

Notable

  • Both registrants match the announcer, listing the European Maritime Safety Agency as the holder for both prefixes.
  • The address inventory is compact, comprising one /22 and one /23 block, both located in Portugal.

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

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

ASNetworkPaths seen
AS8220COLT Technology Services Group Limited196
AS1930Fundacao para a Ciencia e a Tecnologia, I.P.38
AS12353Communicacoes Pessoais S.A.2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 1.54K addresses IPv6 0 prefixes

CountryNamePrefixes
PTPortugal2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57350
Registry name
EUROPEAN-MARITIME-SAFETY-AGENCY-AS
Registrant
AS57350-MNT
Abuse contact
tech-admin@emsa.europa.eu
Registered
2011-10-05
Last changed
2020-10-23
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS57350
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
5 naming AS57350

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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