Routing security
AS57797 SYSLEVEL SysLevel SAS
Unclassified RIPE Cable/DSL/ISP
Announcements
What this network originates
Every prefix observed with AS57797 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a12:8ac0::/40 | RPKI valid | IRR | 35 |
| 2a12:8ac1::/32 | RPKI valid | IRR | 35 |
| 81.27.84.0/24 | RPKI valid | IRR | 53 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS57797 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 81.27.84.0/24 | /24 | RIPENCC |
| 131.162.144.0/21 | /24 | RIPENCC |
| 131.162.144.0/24 | /24 | RIPENCC |
| 131.162.145.0/24 | /24 | RIPENCC |
| 131.162.146.0/24 | /24 | RIPENCC |
| 131.162.147.0/24 | /24 | RIPENCC |
| 209.131.64.0/21 | /24 | RIPENCC |
| 2a12:8ac0::/29 | /48 | RIPENCC |
| 2a12:8ac0::/40 | /48 | RIPENCC |
| 2a12:8ac1::/32 | /48 | RIPENCC |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
This network has signed an ASPA record naming its transit providers. Each is compared against the upstreams observed in routing paths.
| AS | Network | ASPA | Routing paths |
|---|---|---|---|
| AS2027 | MilkyWan Association | Declared | Observed |
| AS35661 | VIRTUA SYSTEMS SAS | Declared | Observed |
| AS39801 | France IX Services SASU | Declared | Observed |
| AS52025 | ParadoxNetworks Limited | Declared | Observed |
| AS6939 | Hurricane Electric LLC | not declared | Observed |
| AS50304 | Blix Solutions AS | not declared | Observed |
| AS24482 | SG.GS | not declared | Observed |
| AS50628 | Leonix Telecom SAS | not declared | Observed |
| AS204092 | Association GRIFON | not declared | Observed |
| AS401753 | BIXCE Inc | not declared | Observed |
| AS37721 | Virtual Technologies & Solutions | not declared | Observed |
An observed upstream that is not declared is not necessarily a leak: our upstream inference cannot tell a transit provider from a peer seen in the same position. A declared provider that is never observed is usually a backup path.
IRR
Registered route objects
Route objects naming AS57797 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 81.27.84.0/24 | RIPE | — | SYSLEVEL-NOC-MNT | 2026-06-17 | Announced |
| 2a12:8ac0::/40 | RIPE | — | SYSLEVEL-NOC-MNT | 2024-01-26 | Announced |
| 2a12:8ac1::/32 | RIPE | — | SYSLEVEL-NOC-MNT | 2024-01-26 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS57797 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-SYSLEVEL | PeeringDB | Declared by the operator as its own set |
AS-4IXP | RIPE | Lists AS57797 as a direct member |
AS-4IXP-RS | RIPE | Lists AS57797 as a direct member |
AS-4IXPV6 | RIPE | Lists AS57797 as a direct member |
AS-FRANCEIX-PAR-LIST | RIPE | Lists AS57797 as a direct member |
AS-HURRICANEV6 | RADB | Lists AS57797 as a direct member |
AS-MILKYWAN | RIPE | Lists AS57797 as a direct member |
AS-MISAKA-CUSTOMERS2 | RIPE | Lists AS57797 as a direct member |
AS-PACKET | RADB | Lists AS57797 as a direct member |
AS-RETN-ACTUAL-V4 | RIPE | Lists AS57797 as a direct member |
AS-RETN-ACTUAL-V6 | RIPE | Lists AS57797 as a direct member |
AS-SBAG:AS-NL-AMS | RIPE | Lists AS57797 as a direct member |
AS-SBIX-RS | RIPE | Lists AS57797 as a direct member |
AS-SUMMIT-SYSTEMS | RIPE | Lists AS57797 as a direct member |
AS-SYSLEVEL | RIPE | Lists AS57797 as a direct member |
AS1221:AS-CUSTOMERS | APNIC | Lists AS57797 as a direct member |
AS34872:AS-DOWNSTREAM-DE | ALTDB | Lists AS57797 as a direct member |
AS34927:AS-TUNNELBROKER-LEGACY | RIPE | Lists AS57797 as a direct member |
AS35661:AS-PAR01FR | RIPE | Lists AS57797 as a direct member |
AS51706:AS-MEMBERS:AS-PAR-RS | RIPE | Lists AS57797 as a direct member |
AS52025:AS-DOWNSTREAMS-AMSTERDAM | RIPE | Lists AS57797 as a direct member |
AS917:AS-CUSTOMERS | ARIN | Lists AS57797 as a direct member |
AS917:AS-CUSTOMERS-LARGE | ARIN | Lists AS57797 as a direct member |
RPKI from rpki-client, validated 2026-10-12 12:10 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-12. Cross-check on bgp.he.net.