asn.dev

Autonomous system

AS31511 B-RAIL-BE-AS

Unclassified RIPE

IPv4 addresses 2.05K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BE
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Infrabel

Belgium · AI-generated

railway infrastructure government belgium

B-RAIL-BE-AS is operated by Infrabel NV, the Belgian railway infrastructure manager.

What it's used for

  • The address space carries internal corporate infrastructure for the Belgian rail network, evidenced by netnames BE-B-RAIL-20130718, BE-B-RAIL-2008-05-22, and B-RAIL-BE all registered to Infrabel NV.
  • The AS announces 2048 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access network.

Notable

  • All registrants in the RDAP data agree with the announcer, consistently listing Infrabel NV and B-RAIL SERVICE.
  • Infrabel is a Belgian government-owned public limited company responsible for building, owning, maintaining, and upgrading the national railway network.
  • The inventory consists of three IPv4 blocks (185.30.252.0/22, 195.62.68.0/23, 195.177.246.0/23) and one IPv6 prefix (2a04:4720::/30), reflecting a finely subdivided internal corporate estate.

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
AS50309Arcadiz Telecom NV141
AS174Cogent Communications, LLC66

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 3 prefixes · 2.05K addresses IPv6 1 prefixes

CountryNamePrefixes
BEBelgium4

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS31511
Registry name
B-RAIL-BE-AS
Registrant
B-RAIL-MNT
Abuse contact
cybernis@infrabel.be
Registered
2004-06-02
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
75% valid · 3 valid, 1 with no ROA
ROAs
3 authorising AS31511
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
4 naming AS31511

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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