asn.dev

Autonomous system

AS21274 BAS-NET-AS

Unclassified RIPE

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BY
Exchanges 0 recorded by PCH
Upstreams 2 5 downstream
Flagged prefixes 0 none

Summary

UIIP NASB

Belarus · AI-generated

research education government belarus

BAS-NET-AS is operated by State Scientific Enterprise 'United Institute of Informatics Problems of National Academy of Sciences of Belarus' (UIIP NASB).

What it's used for

  • The address space is registered to the institute itself, with the netname BY-BASNET-20011003 and registrant contact BASNET Abuse, indicating internal use for the research institution's infrastructure.
  • The AS announces 4096 IPv4 addresses in a single prefix (80.94.160.0/20) and one IPv6 prefix (2a01:6e40::/32), maintaining 7 observed neighbours; this low neighbour count relative to the address block suggests a direct connection for a specific institutional site rather than a transit provider.

Notable

  • The RDAP registrant matches the AS holder exactly, confirming the space is owned and managed by the United Institute of Informatics Problems.
  • The address inventory consists of a single contiguous IPv4 block and a single IPv6 prefix, typical of a dedicated allocation for a specific research facility.

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, 5 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS60280Republican Unitary Enterprise "National Traffic Exchange Center"100
AS20965GEANT Vereniging6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 · 4.10K addresses IPv6 1 prefixes

CountryNamePrefixes
BYBelarus2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS21274
Registry name
BAS-NET-AS
Registrant
State Scientific Enterprise 'United Institute of Informatics Problems of National Academy of Sciences of Belarus' (UIIP NASB)
Abuse contact
abuse@basnet.by
Registered
2002-08-26
Last changed
2026-03-05
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS21274
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
22 naming AS21274

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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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