Autonomous system
AS9002 RETN-AS
Unclassified RIPE NSP
Summary
RETN Limited
transit backbone legacy
RETN-AS is RETN Limited, a large independent international transit carrier operating a backbone across Europe, the CIS, the Caucasus, Central Asia and onward to Asia and North America.
What it's used for
Wholesale IP transit, wavelength and Ethernet services. The role is unmistakable in the routing data: only ~41k addresses of directly announced IPv4 space but ~3,168 observed BGP neighbours, the signature of a carrier whose value is interconnection rather than address holdings. Under the neighbour-count-beats-address-count rule this is a transit backbone, not an eyeball or hosting network.
Notable
The announced prefixes are a scatter of small blocks (many /24s and a few /22–/19s) drawn from ranges RETN carries for customers. Sampled reverse DNS on several of them resolves to rt01.beget.ru-style router names, i.e. downstream customer infrastructure (Beget, a Russian host), riding RETN transit rather than RETN's own eyeball space.
Interesting
RETN is one of the more prominent independent (non-incumbent) carriers bridging Western Europe and the former-Soviet region, widely present at European internet exchanges.
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
Recorded at 23 exchanges in 16 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.192.73 |
| LINX LON1 | London, United Kingdom | 195.66.224.193 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.209.216 |
| France-IX Paris | Paris, France | 37.49.236.17 |
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.229.103 |
| Milan Internet Exchange | Milan, Italy | 217.29.66.116 |
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.236.84 |
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.32 |
Transit providers
37 upstream, 2,511 downstream and 1,894 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 24 prefixes · 24.32K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 25 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9002- Registry name
- RETN-AS
- Registrant
- MNT-RETN
- Abuse contact
- abuse@retn.net
- Registered
- 2008-03-25
- Last changed
- 2026-10-09
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- RETN
- Also known as
- RETN.net
- Network type
- NSP
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Selective
- IRR as-set
RIPE::AS-RETN RIPE::AS-RETN6- Present at
- 25 exchanges
- Facilities
- 184 facilities
- Website
- http://www.retn.net/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 95% valid · 18 valid, 1 with no ROA
- ROAs
- 67 authorising AS9002
- ASPA
- no ASPA record
- IRR
- 100% registered · 19 of 19 announcements
- Route objects
- 95 naming AS9002
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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