asn.dev

Autonomous system

AS41566 TUSUR-AS Tomsk, Russia

Unclassified RIPE

IPv4 addresses 6.14K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

TUSUR

Russian Federation · AI-generated

education university russia

TUSUR-AS is operated by Tomsk State University of Control Systems and Radioelectronics.

What it's used for

  • The address space carries university infrastructure, evidenced by reverse DNS entries pointing to IP.SUR.net.ru and netnames TUSUR4-NET and TUSUR-NET.
  • The AS announces 6144 IPv4 addresses across 2 prefixes and maintains 4 observed neighbours, a ratio consistent with an institutional access network rather than a transit provider.
  • Traffic from this AS consists of student, faculty, and research endpoints associated with the university's academic and administrative operations.

Notable

  • Registrants for the announced prefixes are ROSNIIROS Registry and ER-Telecom ISP Contact Role, which differ from the AS holder but align with Russian registry and ISP allocation practices for educational institutions.
  • The inventory consists of two distinct IPv4 blocks: 212.192.112.0/20 and 88.204.72.0/21, with no IPv6 prefixes currently announced.

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
AS12389PJSC Rostelecom108
AS50928PJSC MegaFon10
AS9049JSC "ER-Telecom Holding"6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 · 6.14K addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS41566
Registry name
TUSUR-AS
Registrant
Federal State Budget Educational Institution of Higher Professional Education "Tomsk State University of Control Systems and Radio Electronics"
Abuse contact
abuse@tusur.ru
Registered
2006-09-15
Last changed
2021-01-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS41566
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
3 naming AS41566

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 1,783 prefixes, as published 2026-10-20. 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