asn.dev

Autonomous system

AS51289 SKYDNS-AS

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

SkyDNS

Russian Federation · AI-generated

security saas dns business

SKYDNS-AS is held by SkyDNS Ltd.

What it's used for

  • The space carries infrastructure for cloud-based internet security and content filtering, evidenced by the netname SKYDNS-IPv4-ANYCAST-NET.
  • The AS announces 256 IPv4 addresses across 1 prefix with 3 observed neighbours, indicating a small-scale service provider or internal corporate estate rather than a transit or large access network.
  • Traffic from this AS consists of web/API endpoints and DNS service discovery infrastructure supporting the company's SaaS security solutions.

Notable

  • The registrant SkyDNS Ltd and netname SKYDNS-IPv4-ANYCAST-NET align with the AS holder.
  • SkyDNS is a Russian company based in Yekaterinburg, founded in 2010, specializing in preventive cybersecurity and content filtering systems.
  • The address inventory consists of a single /24 block, consistent with a focused service deployment.

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 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS50340JSC Selectel58
AS49505JSC Selectel38
AS43238Optizon Ltd3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
RURussian Federation2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51289
Registry name
SKYDNS-AS
Registrant
SkyDNS Ltd
Abuse contact
support@skydns.ru
Registered
2010-07-15
Last changed
2026-04-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS51289
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS51289

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 1,772 prefixes, as published 2026-10-15. 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