Routing security
AS402584 MSUDENVER - Metropolitan
Unclassified ARIN
Announcements
What this network originates
Every prefix observed with AS402584 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 147.153.0.0/16 | No ROA | IRR other origin | 1 |
| 147.153.0.0/17 | RPKI valid | IRR | 56 |
| 147.153.128.0/18 | RPKI valid | IRR | 56 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS402584 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 147.153.0.0/17 | /17 | ARIN |
| 147.153.128.0/18 | /18 | 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 |
|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Declared | not observed |
| AS14041 | University Corporation for Atmospheric Research | 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 AS402584 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 |
|---|---|---|---|---|---|
| 147.153.0.0/17 | ARIN | Metropolitan State University of Denver | MNT-MSCD-Z | 2026-10-23 | Announced |
| 147.153.0.0/17 | RADB | Metropolitan State College of Denver | MAINT-AS14041 | 2026-10-08 | Announced |
| 147.153.128.0/18 | ARIN | Metropolitan State University of Denver | MNT-MSCD-Z | 2026-10-23 | Announced |
| 147.153.128.0/18 | RADB | Metropolitan State College of Denver | MAINT-AS14041 | 2026-10-08 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS402584 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-FRGP | RADB | Lists AS402584 as a direct member |
AS-MSUDENVER | ARIN | Lists AS402584 as a direct member |
RPKI from rpki-client, validated 2026-11-12 13:06 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, AFRINIC, collected 2026-11-12. Cross-check on bgp.he.net.