Routing security
AS401973 NEBULA NETWORKS
Residential ARIN Cable/DSL/ISP
Announcements
What this network originates
Every prefix observed with AS401973 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 23.146.172.0/24 | RPKI valid | IRR | 57 |
| 2602:f535::/40 | RPKI valid | IRR | 34 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS401973 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 23.146.172.0/24 | /24 | ARIN |
| 2602:f535::/40 | /48 | ARIN |
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 |
|---|---|---|---|
| AS6939 | Hurricane Electric LLC | Declared | not observed |
| AS13335 | Cloudflare, Inc. | Declared | not observed |
| AS26268 | unnamed | Declared | not observed |
| AS64234 | unnamed | Declared | not observed |
| AS394256 | Tech Futures Interactive Inc. | Declared | Observed |
| AS22652 | Videotron Ltee | 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 AS401973 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 |
|---|---|---|---|---|---|
| 23.146.172.0/24 | ARIN | Nebula Networks | MNT-NN-186 | 2025-10-04 | Announced |
| 2602:f535::/40 | ARIN | Nebula Networks | MNT-NN-186 | 2025-10-04 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS401973 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-NEBULANETWORKS | PeeringDB | Declared by the operator as its own set |
AS-CLOUDSINGULARITY | RADB | Lists AS401973 as a direct member |
AS-HURRICANE | RADB | Lists AS401973 as a direct member |
AS-HURRICANEV6 | RADB | Lists AS401973 as a direct member |
AS-NEBULANETWORKS | ARIN | Lists AS401973 as a direct member |
AS394256:AS-CLOUDSINGULARITY | RADB | Lists AS401973 as a direct member |
AS394256:AS-CUSTOMERS | RADB | Lists AS401973 as a direct member |
RPKI from rpki-client, validated 2026-10-16 12:09 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-10-16. Cross-check on bgp.he.net.