Autonomous system
AS25511 ASN-NET21
Unclassified RIPE
Summary
JSC "RCS
business russia corporate
The AS handle ASN-NET21 is held by JSC "RCS".
What it's used for
- The address space is registered under netnames
RU-RUCESV-20021127,RU-RUCESV-20061204, andRU-RUCESV-20150707, all associated with the registrant JSC "RCS". - The network announces 6144 IPv4 addresses across 3 prefixes and maintains 1 observed neighbour, a ratio that suggests an internal corporate estate or limited access network rather than a transit provider.
Notable
- All three announced prefixes list JSC "RCS" as the registrant, matching the AS holder.
- The inventory consists of three distinct IPv4 blocks: 217.12.240.0/20, 91.103.196.0/22, and 185.108.0.0/22, with no IPv6 prefixes in the inventory.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS197453 | Biz Telecom LLC | 195 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 6.14K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RU | Russian Federation | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS25511- Registry name
- ASN-NET21
- Registrant
- mnt-ru-rucesv-1
- Abuse contact
- lir@rucesv.ru
- Registered
- 2002-12-17
- Last changed
- 2023-01-19
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS25511
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS25511
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 1,783 prefixes, as published 2026-10-20. 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