Routing security
AS39531 ALTER-NET-AS Zorilor Nr 11 Sf Gheorghe
Unclassified RIPE Cable/DSL/ISP
Announcements
What this network originates
Every prefix observed with AS39531 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 80.96.27.0/24 | RPKI valid | IRR | 51 |
| 93.115.174.0/24 | RPKI valid | IRR | 51 |
| 194.50.50.0/24 | RPKI valid | IRR | 51 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS39531 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 80.96.27.0/24 | /24 | RIPENCC |
| 93.115.174.0/24 | /24 | RIPENCC |
| 194.50.50.0/24 | /24 | 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 |
|---|---|---|---|
| AS5483 | Magyar Telekom Plc. | Declared | not observed |
| AS6204 | INTERKVM HOST SRL | Declared | not observed |
| AS9002 | RETN Limited | Declared | Observed |
| AS12302 | Vodafone Romania S.A. | Declared | Observed |
| AS6939 | Hurricane Electric LLC | not declared | Observed |
| AS20764 | CJSC RASCOM | not declared | Observed |
| AS24482 | SG.GS | 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 AS39531 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 |
|---|---|---|---|---|---|
| 80.96.27.0/24 | RIPE | Municipiul Sf�ntu Gheorghe | ALTER-NET-MNT | 2026-01-13 | Announced |
| 93.115.174.0/24 | RIPE | SC-ALTER-NET-SRL | ALTER-NET-MNT | 2024-08-31 | Announced |
| 194.50.50.0/24 | RIPE | SC-ALTER-NET-SRL | ALTER-NET-MNT | 2006-03-17 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS39531 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-39531 | RIPE | Lists AS39531 as a direct member |
AS-39531:AS48063 | RIPE | Lists AS39531 as a direct member |
AS-ASTRAL | RIPE | Lists AS39531 as a direct member |
AS-INTERLANRO | RIPE | Lists AS39531 as a direct member |
AS-MAGYARTELEKOM | RIPE | Lists AS39531 as a direct member |
AS-MOBIFON | RIPE | Lists AS39531 as a direct member |
AS-RETN | RIPE | Lists AS39531 as a direct member |
AS-RETN-ACTUAL-V4 | RIPE | Lists AS39531 as a direct member |
AS-RTD-RO | RIPE | Lists AS39531 as a direct member |
AS-TERRANET | RIPE | Lists AS39531 as a direct member |
AS-ZETNET | RIPE | Lists AS39531 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.