Network · data from 2026-11-12
AS104 University of Colorado at Boulder
Registry name: COLORADO-AS - University of Colorado at Boulder, US · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS104, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 2401:eee0:1c0::/42 | Invalid: origin | None | 86 14% |
| 2401:eee0:200::/42 | Invalid: origin | None | 86 14% |
| 204.228.80.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 128.138.0.0/16 | No ROA | Other IRR onlyRADB | 670 100% |
| 198.11.16.0/20 | No ROA | Other IRR onlyRADB | 670 100% |
| 146.5.20.0/22 | No ROA | Other IRR onlyRADB | 668 99% |
| 192.12.238.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 192.12.240.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 192.12.241.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 192.12.242.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 192.12.244.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 192.12.245.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.7.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.51.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.52.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.54.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.55.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.70.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.81.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.82.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 198.59.83.0/24 | No ROA | Other IRR onlyRADB | 668 99% |
| 2620:18f::/32 | No ROA | Other IRR onlyRADB | 636 100% |
| 2001:468:501::/48 | Valid | None | 17 3%low visibility |
| 129.19.240.0/20 | Valid | RIR databaseARIN, RADB | 673 100% |
| 129.19.192.0/18 | Valid | RIR databaseARIN, RADB | 670 100% |
AS-SET
AS104's PeeringDB record names no AS-SET.
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 52 are in fix.csv.
- ROA: origin2
- ROA: none20
- Route object: none3
- Route object: RIR20
- Route object: not announced7
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: origin | 2401:eee0:1c0::/42 | ROAs covering it name AS149433, not AS104. If AS104 should announce it, add a ROA for AS104. |
| Route object: none | 2401:eee0:1c0::/42 | No route object for it. Add a route object with origin AS104 in the RIR database for the space. |
| ROA: origin | 2401:eee0:200::/42 | ROAs covering it name AS149433, not AS104. If AS104 should announce it, add a ROA for AS104. |
| Route object: none | 2401:eee0:200::/42 | No route object for it. Add a route object with origin AS104 in the RIR database for the space. |
| ROA: none | 204.228.80.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 204.228.80.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 128.138.0.0/16 | No ROA covers it. Add a ROA for AS104, maxLength 16. |
| Route object: RIR | 128.138.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.11.16.0/20 | No ROA covers it. Add a ROA for AS104, maxLength 20. |
| Route object: RIR | 198.11.16.0/20 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 146.5.20.0/22 | No ROA covers it. Add a ROA for AS104, maxLength 22. |
| Route object: RIR | 146.5.20.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 192.12.238.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 192.12.238.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 192.12.240.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 192.12.240.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 192.12.241.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 192.12.241.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 192.12.242.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 192.12.242.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 192.12.244.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 192.12.244.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 192.12.245.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 192.12.245.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.7.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.7.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.51.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.51.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.52.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.52.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.54.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.54.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.55.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.55.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.70.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.70.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.81.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.81.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.82.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.82.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 198.59.83.0/24 | No ROA covers it. Add a ROA for AS104, maxLength 24. |
| Route object: RIR | 198.59.83.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 2620:18f::/32 | No ROA covers it. Add a ROA for AS104, maxLength 32. |
| Route object: RIR | 2620:18f::/32 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: none | 2001:468:501::/48 | No route object for it. Add a route object with origin AS104 in the RIR database for the space. |
Route objects not announced
Route objects with origin AS104 whose prefix no peer sees AS104 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 146.5.20.0/24 | RADB | No ROA |
| 192.12.239.0/24 | RADB | No ROA |
| 192.12.243.0/24 | RADB | No ROA |
| 192.12.246.0/24 | RADB | No ROA |
| 198.59.61.0/24 | RADB | No ROA |
| 198.118.206.0/24 | RADB | No ROA |
| 204.228.67.0/24 | RADB | No ROA |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.