Network · data from 2026-11-12
AS2 UDEL-DCN - University of Delaware
Registry name: UDEL-DCN - University of Delaware, US · not in PeeringDB
14IPv4 routes
7.1% RPKI valid · 7.1% with a route object
0IPv6 routes
3RPKI invalid
3 origin · 0 maxLength
10No ROA
13 with no route object for this origin
6Low visibility
seen by under 10% of full-table peers
1Route objects not announced
registered with origin AS2, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS2, 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.
| 177.85.170.0/24 | Invalid: origin | Other origin only | 5 1%low visibility |
| 177.85.171.0/24 | Invalid: origin | Other origin only | 5 1%low visibility |
| 201.159.75.0/24 | Invalid: origin | Other origin only | 5 1%low visibility |
| 171.79.128.0/20 | No ROA | None | 673 100% |
| 171.79.144.0/20 | No ROA | None | 673 100% |
| 91.143.144.0/20 | No ROA | Other origin only | 671 100% |
| 194.190.53.0/24 | No ROA | Other origin only | 177 26% |
| 194.190.54.0/24 | No ROA | Other origin only | 177 26% |
| 189.39.185.0/24 | No ROA | Other origin only | 164 24% |
| 189.76.77.0/24 | No ROA | Other origin only | 88 13% |
| 196.13.136.0/24 | No ROA | Other origin only | 47 7%low visibility |
| 129.205.64.0/20 | No ROA | Other origin only | 18 3%low visibility |
| 154.65.12.0/22 | No ROA | Other origin only | 18 3%low visibility |
| 128.4.0.0/16 | Valid | Other IRR onlyRADB | 671 100% |
AS-SET
AS2 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 28 are in fix.csv.
- ROA: origin3
- ROA: none10
- Route object: none13
- Route object: RIR1
- Route object: not announced1
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: origin | 177.85.170.0/24 | ROAs covering it name AS61763, not AS2. If AS2 should announce it, add a ROA for AS2. |
| Route object: none | 177.85.170.0/24 | Route objects for it name AS61763. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: origin | 177.85.171.0/24 | ROAs covering it name AS61763, not AS2. If AS2 should announce it, add a ROA for AS2. |
| Route object: none | 177.85.171.0/24 | Route objects for it name AS61763. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: origin | 201.159.75.0/24 | ROAs covering it name AS61763, not AS2. If AS2 should announce it, add a ROA for AS2. |
| Route object: none | 201.159.75.0/24 | Route objects for it name AS61763. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 171.79.128.0/20 | No ROA covers it. Add a ROA for AS2, maxLength 20. |
| Route object: none | 171.79.128.0/20 | No route object for it. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 171.79.144.0/20 | No ROA covers it. Add a ROA for AS2, maxLength 20. |
| Route object: none | 171.79.144.0/20 | No route object for it. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 91.143.144.0/20 | No ROA covers it. Add a ROA for AS2, maxLength 20. |
| Route object: none | 91.143.144.0/20 | Route objects for it name AS41837. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 194.190.53.0/24 | No ROA covers it. Add a ROA for AS2, maxLength 24. |
| Route object: none | 194.190.53.0/24 | Route objects for it name AS203794. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 194.190.54.0/24 | No ROA covers it. Add a ROA for AS2, maxLength 24. |
| Route object: none | 194.190.54.0/24 | Route objects for it name AS203794. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 189.39.185.0/24 | No ROA covers it. Add a ROA for AS2, maxLength 24. |
| Route object: none | 189.39.185.0/24 | Route objects for it name AS270792. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 189.76.77.0/24 | No ROA covers it. Add a ROA for AS2, maxLength 24. |
| Route object: none | 189.76.77.0/24 | Route objects for it name AS52752. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 196.13.136.0/24 | No ROA covers it. Add a ROA for AS2, maxLength 24. |
| Route object: none | 196.13.136.0/24 | Route objects for it name AS15808, AS37027, AS327753. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 129.205.64.0/20 | No ROA covers it. Add a ROA for AS2, maxLength 20. |
| Route object: none | 129.205.64.0/20 | Route objects for it name AS37628. Add a route object with origin AS2 in the RIR database for the space. |
| ROA: none | 154.65.12.0/22 | No ROA covers it. Add a ROA for AS2, maxLength 22. |
| Route object: none | 154.65.12.0/22 | Route objects for it name AS37628. Add a route object with origin AS2 in the RIR database for the space. |
| Route object: RIR | 128.4.0.0/16 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS2 whose prefix no peer sees AS2 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 1.1.2.0/24 | 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.