Network · data from 2026-11-12

AS394769 UMF-7-AS - University of Michigan - Flint

Registry name: UMF-7-AS - University of Michigan - Flint, US · not in PeeringDB

3IPv4 routes 66.7% RPKI valid · 66.7% with a route object

0IPv6 routes

1RPKI invalid 0 origin · 1 maxLength

0No ROA 1 with no route object for this origin

1Low visibility seen by under 10% of full-table peers

0Route objects not announced registered with origin AS394769, seen from no peer

Announced routes

Every prefix a peer of the route collectors sees with origin AS394769, 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.


35.7.116.0/24	Invalid: maxLength	Nonecovered by 35.7.112.0/20	26 4%low visibility	19
35.7.112.0/20	Valid	Other IRR onlyRADB	671 100%	68
141.216.0.0/16	Valid	Other IRR onlyRADB	671 100%	68

35.7.116.0/24

Invalid: maxLength

Nonecovered by 35.7.112.0/20

26 4%low visibility

35.7.112.0/20

Valid

Other IRR onlyRADB

671 100%

141.216.0.0/16

Valid

Other IRR onlyRADB

671 100%

AS-SET

AS394769 isn't in PeeringDB, where networks name their 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 4 are in fix.csv.

ROA: maxLength1
Route object: none1
Route object: RIR2

Change	Prefix or set	Detail	Full-table peers
ROA: maxLength	35.7.116.0/24	ROA 35.7.112.0/20 AS394769 has maxLength 20; the route is a /24. Raise the maxLength, or add a ROA for 35.7.116.0/24.	26 of 673
Route object: none	35.7.116.0/24	No route object for it. A route object for 35.7.112.0/20 with origin AS394769 covers it (filters allowing more-specifics accept it). Add a route object with origin AS394769 in the RIR database for the space.	26 of 673
Route object: RIR	35.7.112.0/20	Route object only in RADB. Add it in the RIR database for the space.	671 of 673
Route object: RIR	141.216.0.0/16	Route object only in RADB. Add it in the RIR database for the space.	671 of 673

Change

Prefix or set

Detail

Full-table peers

ROA: maxLength

35.7.116.0/24

ROA 35.7.112.0/20 AS394769 has maxLength 20; the route is a /24. Raise the maxLength, or add a ROA for 35.7.116.0/24.

26 of 673

Route object: none

35.7.116.0/24

No route object for it. A route object for 35.7.112.0/20 with origin AS394769 covers it (filters allowing more-specifics accept it). Add a route object with origin AS394769 in the RIR database for the space.

26 of 673

Route object: RIR

35.7.112.0/20

Route object only in RADB. Add it in the RIR database for the space.

671 of 673

Route object: RIR

141.216.0.0/16

Route object only in RADB. Add it in the RIR database for the space.

671 of 673

Route objects not announced

Every route object with origin AS394769 is announced.

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.