Routing security
AS57575 NETM-AS IP Backbone of NETMOUNTAINS Group GmbH
Unclassified APNIC NSP
Announcements
What this network originates
Every prefix observed with AS57575 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a13:9a40::/32 | RPKI valid | IRR | 31 |
| 109.122.11.0/24 | RPKI valid | IRR | 54 |
| 109.205.197.0/24 | RPKI valid | IRR | 54 |
| 185.153.54.0/24 | RPKI valid | IRR | 54 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS57575 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 89.207.156.0/24 | /24 | RIPENCC |
| 109.122.11.0/24 | /24 | RIPENCC |
| 109.205.197.0/24 | /24 | RIPENCC |
| 185.153.54.0/24 | /24 | RIPENCC |
| 2a13:9a40::/32 | /32 | RIPENCC |
| 2a13:9a41::/32 | /32 | 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 |
|---|---|---|---|
| AS5405 | Inter.link GmbH | Declared | Observed |
| AS24961 | WIIT AG | Declared | Observed |
| AS33891 | Core-Backbone GmbH | Declared | not observed |
| AS50629 | LWLcom GmbH | Declared | not 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 AS57575 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 |
|---|---|---|---|---|---|
| 89.207.156.0/24 | RIPE | — | STR-MNT | 2025-02-10 | Not announced |
| 2a13:9a41::/32 | RIPE | — | STR-MNT | 2025-04-11 | Not announced |
| 109.122.11.0/24 | RADB | autogen | MAINT-AS834 | 2025-10-06 | Announced |
| 109.122.11.0/24 | RIPE | — | NETUTILS-MNT | 2025-10-06 | Announced |
| 109.205.197.0/24 | RIPE | — | STR-MNT | 2024-04-05 | Announced |
| 185.153.54.0/24 | RIPE | — | LIR-DE-NETM-1-MNT | 2023-07-27 | Announced |
| 2a13:9a40::/32 | RIPE | — | LIR-DE-NETM-1-MNT | 2023-07-27 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS57575 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS57575:AS-NETM | PeeringDB | Declared by the operator as its own set |
AS57575:AS-NETM | RIPE | Lists AS57575 as a direct member |
RPKI from rpki-client, validated 2026-10-13 12:16 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-13. Cross-check on bgp.he.net.