Routing security
AS31991 PRPA - Platte River Power Authority
Unclassified ARIN
Announcements
What this network originates
Every prefix observed with AS31991 as its origin, checked against RPKI and the IRR. Problems sort first.
| Prefix | RPKI | IRR | Vantage points |
|---|---|---|---|
| 129.19.6.0/24 | RPKI valid | IRR | 52 |
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS31991 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 129.19.6.0/24 | /24 | ARIN |
| 161.210.100.0/22 | /24 | ARIN |
| 2602:81c:c000::/40 | /64 | 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 |
|---|---|---|---|
| AS12145 | Colorado State University | 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 AS31991 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 |
|---|---|---|---|---|---|
| 161.210.100.0/22 | ARIN | Platte River Power Authority | MNT-PRPA-1 | 2026-04-22 | Not announced |
| 2602:81c:c000::/40 | ARIN | Platte River Power Authority | MNT-PRPA-1 | 2026-04-22 | Not announced |
| 129.19.6.0/24 | ARIN | Colorado State University | MNT-CSU-2-Z | 2026-04-18 | Announced |
| 129.19.6.0/24 | RADB | Platte River Power Authority (PRPA) | MAINT-AS14041 | 2026-05-01 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS31991 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-FRGP | RADB | Lists AS31991 as a direct member |
AS-PNAPDEN | RADB | Lists AS31991 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.