Routing security
AS4492 ASPA-INVALID Antonios A. Chariton
Unclassified RIPE Educational/Research
Announcements
What this network originates
Every prefix observed with AS4492 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 2a0d:3dc0:4492::/48 | RPKI valid | IRR | 32 |
| 193.5.19.0/24 | RPKI valid | IRR | 52 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS4492 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 193.5.19.0/24 | /24 | RIPENCC |
| 2a0d:3dc0:4492::/48 | /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 |
|---|---|---|---|
| AS0 | unnamed | Declared | not observed |
| AS4601 | Antonios A. Chariton | 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 AS4492 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 |
|---|---|---|---|---|---|
| 198.182.221.0/24 | ALTDB | CommSPEED - AZTECH-CBLK1 | MAINT-AS3043 | 2012-02-22 | Not announced |
| 193.5.19.0/24 | RIPE | — | GR-DAKNOB-1-MNT | 2026-01-05 | Announced |
| 2a0d:3dc0:4492::/48 | RIPE | — | GR-DAKNOB-1-MNT | 2026-01-05 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS4492 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS4492:AS-DNET | PeeringDB | Declared by the operator as its own set |
AS-BTN-CUSTOMERS | RADB | Lists AS4492 as a direct member |
AS-TMNET-CUSTOMERS | RADB | Lists AS4492 as a direct member |
AS-XO-B | ARIN | Lists AS4492 as a direct member |
AS4601:AS-DNET | RIPE | Lists AS4492 as a direct member |
RPKI from rpki-client, validated 2026-11-04 19:18 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-04. Cross-check on bgp.he.net.