AS209771 SYSN SYSN LTD
🇬🇧Org handle: ORG-SL977-RIPE
RIPE NCCallocatedASPA Published
Announced Prefixes (BGP)
5total
0 IPv45 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)0
IPv6 Addresses
Allocated (RIR)3.9×10²⁶
Announced (BGP)6×10²⁴
Routing hygiene
Score 15/100 · Low riskRPKI ROA coverage
60%
no RPKI invalid prefixes
IRR route objects
100%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
4
diversity 72/100
- 40% of announced prefixes (2 of 5) have no valid ROA
Based on 5 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained
Announced Prefixes
(BGP)5|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | - | 2026-10-24 | |
| Valid | - | 2026-10-24 | |
| No ROA | RIPE | 2026-10-24 | |
| No ROA | RIPE | 2026-10-24 | |
| Valid | RIPE | 2026-10-24 |
Allocated Prefixes
(RIR)7Prefix | Country | RIR | Status |
|---|---|---|---|
| 2a0c:6500:200::/42 | 🇩🇪 DE | RIPE | assigned |
| 2a0c:6500:23e::/48 | 🇳🇱 NL | RIPE | assigned |
| 2a0c:6500:23f::/48 | 🇩🇪 DE | RIPE | assigned |
| 2a0e:46c6:400::/40 | 🇪🇺 EU | RIPE | assigned |
| 2a0e:46c6:4fe::/48 | 🇳🇱 NL | RIPE | assigned |
| 2a0e:46c6:4ff::/48 | 🇩🇪 DE | RIPE | assigned |
| 2a13:9500:44::/48 | 🇬🇧 GB | RIPE | assigned |
All 5 announced prefixes of AS209771 →
BGP Neighbours
(seen in AS paths)Abuse Contact
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/209771Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/209771" | jq