asn.dev

Autonomous system

AS42048 SFU-AS

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Siberian Federal University

Russian Federation · AI-generated

education university research

The AS handle SFU-AS is held by Siberian Federal University.

What it's used for

  • The address space carries the university's internal network, identified by the netname SFU-NET and registrant Siberian Federal University.
  • The inventory consists of a single IPv4 prefix, 193.218.136.0/22, comprising 1024 addresses, with no IPv6 prefixes announced.
  • With only one observed neighbour, the network operates as an isolated endpoint for campus traffic rather than a transit provider.
  • Traffic from this AS consists of academic and research communications originating from the university's facilities in Krasnoyarsk.

Notable

  • The RDAP registrant Siberian Federal University aligns perfectly with the AS holder and the netname SFU-NET.
  • The address inventory is a single contiguous /22 block, typical for a dedicated institutional allocation.
  • The AS has been visible in routing tables since 2007, consistent with the university's establishment in 2006.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS50928PJSC MegaFon61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS42048
Registry name
SFU-AS
Registrant
Siberian Federal University
Abuse contact
ripe@rt.ru
Registered
2006-12-11
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS42048
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS42048

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 1,784 prefixes, as published 2026-10-19. 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