Autonomous system
AS21496 RU-CITYNET-AS
Unclassified RIPE
Summary
Sibirskie Seti
business russia small
The AS handle RU-CITYNET-AS is held by Sibirskie Seti Ltd.
What it's used for
- The address space is registered under the netname
RU-CITYNET-MEGAFIT-SIPwith registrants listed as "Siberian Networks NOC" and "Siberian Networks Abuse team". - The network announces a single IPv4 prefix, 185.103.161.0/24, comprising 256 addresses, with 0 IPv6 prefixes.
- With only 2 observed neighbours, the low neighbour count relative to the address block suggests a small-scale access or internal corporate network rather than a transit provider.
Notable
- The registrant "Siberian Networks" aligns with the AS holder "Sibirskie Seti Ltd.", indicating consistent ownership of the address space.
- The inventory consists of a single /24 block, representing a compact and specific address allocation.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RU | Russian Federation | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS21496- Registry name
- RU-CITYNET-AS
- Registrant
- Sibirskie Seti Ltd.
- Abuse contact
- abuse@sibset-team.ru
- Registered
- 2002-01-02
- Last changed
- 2019-12-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS21496
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS21496
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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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