Autonomous system
AS209771 SYSN SYSN LTD
Unclassified RIPE
Summary
SYSN LTD
hosting business ipv6
SYSN is operated by SYSN LTD.
What it's used for
- The address space carries IPv6 infrastructure, evidenced by the three announced prefixes:
2a0c:6500:23e::/47,2a0e:46c6:4fe::/47, and2a13:9500:44::/48. - With 0 IPv4 addresses and 3 IPv6 prefixes announced against 23 observed neighbours, the ratio indicates a transit or peering-heavy role rather than a large access network.
- Traffic from this AS consists of hosting and IT infrastructure services, as SYSN LTD specializes in providing hosting solutions, domain registration, and mailbox services for business clients.
Notable
- The registry holder is listed as SYSN SYSN LTD, which aligns with the AS handle
SYSNand the secondary source identification of SYSN LTD. - The address inventory is exclusively IPv6, with no IPv4 prefixes in inventory or announced, reflecting a modern, IPv6-first infrastructure approach.
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 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| InterIX Internet Exchange | Amsterdam, Netherlands | 2001:7f8:134::c4 |
| Local Internet Exchange Frankfurt | Frankfurt, Germany | 185.1.167.107 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS209771- Registry name
- SYSN
- Registrant
- SYSN LTD
- Abuse contact
- abuse@sysn.co.uk
- Registered
- 2018-12-05
- Last changed
- 2026-09-14
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- SYSN
- Also known as
- SYSN
- Scope
- Europe
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- IRR as-set
RIPE::AS-SYSN- Present at
- 3 exchanges
- Website
- https://sysn.co.uk
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
- 60% valid · 3 valid, 2 with no ROA
- ROAs
- 5 authorising AS209771
- ASPA
- 5 declared providers
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 6 naming AS209771
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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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