asn.dev

Autonomous system

AS51181 SIBSAU-NET

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Siberian State Aerospace University

Russian Federation · AI-generated

education university krasnoyarsk

The AS handle SIBSAU-NET is held by Siberian State Aerospace University.

What it's used for

  • The space carries the university's internal network, identified by the netname SIBSAU-NET and registrant "State educational institution for higher professional education SIBERIAN STATE AEROSPACE UNIVERSITY named after M.F.Reshetnev".
  • The inventory consists of 256 IPv4 addresses within a single /24 prefix (91.216.164.0/24) and 0 IPv6 prefixes, observed against 2 routing neighbours.
  • Traffic from this AS represents the university's campus infrastructure, including student and staff access, academic research systems, and administrative endpoints.

Notable

  • The RDAP registrant matches the AS holder exactly, confirming the space is owned and operated by the institution.
  • The address inventory is a single contiguous /24 block, typical for a standalone educational institution managing its own IP estate.
  • The university was previously known as Reshetnyov Siberian State Aerospace University and is located in Krasnoyarsk, Russia.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS209687IGRA-SERVICE LLC50
AS39785Axioma, LLC13

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, 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 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51181
Registry name
SIBSAU-NET
Registrant
MNT-SIBSAU
Abuse contact
abuse@sibsau.ru
Registered
2010-06-15
Last changed
2024-04-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS51181
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS51181

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: 442 networks and 1,779 prefixes, as published 2026-10-23. 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