asn.dev

Autonomous system

AS43307 ALTLINUX-AS

Unclassified RIPE

IPv4 addresses 512 2 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

Alt Linux

Russian Federation · AI-generated

linux enterprise russia

ALTLINUX-AS is operated by LLC Basalt Svobodnoe Programnoe Obespechenie.

What it's used for

  • The address space carries corporate infrastructure for Alt Linux, evidenced by the netname ALT-LINUX-NET and reverse DNS entry lipetsk.lug.ru.
  • The AS announces 512 IPv4 addresses across 2 prefixes with 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or access provider.
  • Traffic from this AS consists of internal corporate endpoints and development infrastructure associated with the Alt Linux distribution.

Notable

  • Registrants align with the announcer, listing LLC Basalt Svobodnoe Programnoe Obespechenie for the ALT-LINUX-NET prefix.
  • The address inventory is minimal, consisting of two /24 blocks, which fits the profile of a specialized software company rather than a large-scale ISP.

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
AS3175Citytelecom LLC124

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS43307
Registry name
ALTLINUX-AS
Registrant
LLC Basalt Svobodnoe Programnoe Obespechenie
Abuse contact
abuse@altlinux.org
Registered
2007-07-11
Last changed
2024-12-10
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS43307
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS43307

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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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