Network · data from 2026-11-12
AS36375 University of Michigan
Registry name: UMICH-AS-5 - University of Michigan, US · PeeringDB
26IPv4 routes
76.9% RPKI valid · 76.9% with a route object
1IPv6 routes
100.0% RPKI valid · 100.0% with a route object
6RPKI invalid
0 origin · 6 maxLength
0No ROA
6 with no route object for this origin
9Low visibility
seen by under 10% of full-table peers
1Route objects not announced
registered with origin AS36375, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS36375, 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.
| 141.212.118.0/24 | Invalid: maxLength | Nonecovered by 141.212.0.0/16 | 26 4%low visibility |
| 141.212.120.0/24 | Invalid: maxLength | Nonecovered by 141.212.0.0/16 | 26 4%low visibility |
| 141.212.121.0/24 | Invalid: maxLength | Nonecovered by 141.212.0.0/16 | 26 4%low visibility |
| 141.212.122.0/24 | Invalid: maxLength | Nonecovered by 141.212.0.0/16 | 26 4%low visibility |
| 141.212.123.0/24 | Invalid: maxLength | Nonecovered by 141.212.0.0/16 | 26 4%low visibility |
| 141.212.124.0/23 | Invalid: maxLength | Nonecovered by 141.212.0.0/16 | 26 4%low visibility |
| 35.0.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.1.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.2.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.3.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.4.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.5.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.6.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 35.7.0.0/18 | Valid | Other IRR onlyRADB | 673 100% |
| 35.7.128.0/18 | Valid | Other IRR onlyRADB | 673 100% |
| 67.194.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 141.211.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 141.212.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 141.213.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 141.214.0.0/16 | Valid | Other IRR onlyRADB | 673 100% |
| 192.12.80.0/24 | Valid | Other IRR onlyRADB | 673 100% |
| 192.41.232.0/23 | Valid | Other IRR onlyRADB | 671 100% |
| 192.231.253.0/24 | Valid | Other IRR onlyRADB | 671 100% |
| 2607:f018::/32 | Valid | Other IRR onlyRADB | 636 100% |
| 198.108.8.0/21 | Valid | Other IRR onlyRADB | 20 3%low visibility |
| 207.75.144.0/20 | Valid | Other IRR onlyRADB | 20 3%low visibility |
| 198.111.181.0/25 | Valid | Other IRR onlyRADB | 9 1%low visibility |
AS-SET
AS36375'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 34 are in fix.csv.
- ROA: maxLength6
- Route object: none6
- Route object: RIR21
- Route object: not announced1
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: maxLength | 141.212.118.0/24 | ROA 141.212.0.0/16 AS36375 has maxLength 16; the route is a /24. Raise the maxLength, or add a ROA for 141.212.118.0/24. |
| Route object: none | 141.212.118.0/24 | No route object for it. A route object for 141.212.0.0/16 with origin AS36375 covers it (filters allowing more-specifics accept it). Add a route object with origin AS36375 in the RIR database for the space. |
| ROA: maxLength | 141.212.120.0/24 | ROA 141.212.0.0/16 AS36375 has maxLength 16; the route is a /24. Raise the maxLength, or add a ROA for 141.212.120.0/24. |
| Route object: none | 141.212.120.0/24 | No route object for it. A route object for 141.212.0.0/16 with origin AS36375 covers it (filters allowing more-specifics accept it). Add a route object with origin AS36375 in the RIR database for the space. |
| ROA: maxLength | 141.212.121.0/24 | ROA 141.212.0.0/16 AS36375 has maxLength 16; the route is a /24. Raise the maxLength, or add a ROA for 141.212.121.0/24. |
| Route object: none | 141.212.121.0/24 | No route object for it. A route object for 141.212.0.0/16 with origin AS36375 covers it (filters allowing more-specifics accept it). Add a route object with origin AS36375 in the RIR database for the space. |
| ROA: maxLength | 141.212.122.0/24 | ROA 141.212.0.0/16 AS36375 has maxLength 16; the route is a /24. Raise the maxLength, or add a ROA for 141.212.122.0/24. |
| Route object: none | 141.212.122.0/24 | No route object for it. A route object for 141.212.0.0/16 with origin AS36375 covers it (filters allowing more-specifics accept it). Add a route object with origin AS36375 in the RIR database for the space. |
| ROA: maxLength | 141.212.123.0/24 | ROA 141.212.0.0/16 AS36375 has maxLength 16; the route is a /24. Raise the maxLength, or add a ROA for 141.212.123.0/24. |
| Route object: none | 141.212.123.0/24 | No route object for it. A route object for 141.212.0.0/16 with origin AS36375 covers it (filters allowing more-specifics accept it). Add a route object with origin AS36375 in the RIR database for the space. |
| ROA: maxLength | 141.212.124.0/23 | ROA 141.212.0.0/16 AS36375 has maxLength 16; the route is a /23. Raise the maxLength, or add a ROA for 141.212.124.0/23. |
| Route object: none | 141.212.124.0/23 | No route object for it. A route object for 141.212.0.0/16 with origin AS36375 covers it (filters allowing more-specifics accept it). Add a route object with origin AS36375 in the RIR database for the space. |
| Route object: RIR | 35.0.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.1.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.2.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.3.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.4.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.5.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.6.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.7.0.0/18 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 35.7.128.0/18 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 67.194.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 141.211.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 141.212.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 141.213.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 141.214.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 192.12.80.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 192.41.232.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 192.231.253.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 2607:f018::/32 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 198.108.8.0/21 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 207.75.144.0/20 | Route object only in RADB. Add it in the RIR database for the space. |
| Route object: RIR | 198.111.181.0/25 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS36375 whose prefix no peer sees AS36375 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 2605:42c0::/32 | RADB | Valid |
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.