asn.dev

Autonomous system

AS5387 NSC

Unclassified RIPE

IPv4 addresses 15.10K 24 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 1 recorded by PCH
Upstreams 6 1 downstream
Flagged prefixes 0 none

Summary

NSCNET (Novosibirsk Scientific Center)

Russia · AI-generated

education research legacy

NSC is the network of the Novosibirsk Scientific Center in Akademgorodok, the academic town of the Siberian Branch of the Russian Academy of Sciences. The RIPE object still carries its original description, the Akademgorodok Internet Project.

What it's used for

  • Connectivity for the research institutes, computing centres, and university facilities clustered in Akademgorodok, on the southern edge of Novosibirsk.
  • Peering at NSK-IX, the Novosibirsk internet exchange, alongside upstream transit.

Notable

  • An academic network. Its address space serves institutes and their staff rather than commercial subscribers.
  • The registration has passed to a limited company operating the network, but the routing policy and the institutional customer base still reflect its origins in the Siberian Branch of the Academy of Sciences.

Interesting

  • The RIPE object credits the International Science Foundation alongside the Academy, a reminder that several Russian academic networks were first brought online in the 1990s with outside scientific funding.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
MSK-IX NovosibirskNovosibirsk, Russia193.232.87.38

Transit providers

6 upstream, 1 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS31200Novotelecom Ltd1,016
AS15493"Russian company" LLC63
AS42451Limited Company Sakha Sprint Network62
AS9049JSC "ER-Telecom Holding"60
AS49673Truenetwork LLC12
AS25091IP-Max SA1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, 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 24 prefixes · 15.10K addresses IPv6 1 prefixes

CountryNamePrefixes
RURussian Federation25

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS5387
Registry name
NSC
Registrant
CT-C-MNT
Abuse contact
abuse@ct-consulting.ru
Registered
2002-01-23
Last changed
2025-07-01
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 21 with no ROA
ROAs
0 authorising AS5387
ASPA
no ASPA record
IRR
100% registered · 21 of 21 announcements
Route objects
19 naming AS5387

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 2026-10-22. 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