Network · data from 2026-11-12
AS18027 NSU-AS-KR-KR - Namseoul university
Registry name: NSU-AS-KR-KR - Namseoul university, KR · not in PeeringDB
32IPv4 routes
0.0% RPKI valid · 37.5% with a route object
0IPv6 routes
0RPKI invalid
0 origin · 0 maxLength
32No ROA
20 with no route object for this origin
5Low visibility
seen by under 10% of full-table peers
2Route objects not announced
registered with origin AS18027, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS18027, 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.
| 211.241.60.0/24 | No ROA | Nonecovered by 211.241.60.0/22 | 673 100% |
| 211.241.61.0/24 | No ROA | Nonecovered by 211.241.60.0/22 | 673 100% |
| 220.68.176.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.177.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.178.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.179.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.180.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.181.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.182.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.183.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.184.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.185.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.189.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.190.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 220.68.191.0/24 | No ROA | Nonecovered by 220.68.176.0/20 | 673 100% |
| 61.38.110.64/26 | No ROA | None | 14 2%low visibility |
| 220.68.188.0/26 | No ROA | Nonecovered by 220.68.176.0/20 | 14 2%low visibility |
| 220.68.176.16/28 | No ROA | Nonecovered by 220.68.176.0/20 | 13 2%low visibility |
| 220.68.176.224/28 | No ROA | Nonecovered by 220.68.176.0/20 | 13 2%low visibility |
| 220.68.176.8/29 | No ROA | Nonecovered by 220.68.176.0/20 | 10 1%low visibility |
| 211.42.48.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.42.49.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.42.104.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.24.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.26.0/23 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.52.0/22 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.52.0/23 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.54.0/23 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.56.0/22 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.60.0/22 | No ROA | Other IRR onlyRADB | 673 100% |
| 220.68.192.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 211.241.56.0/21 | No ROA | Other IRR onlyRADB | 672 100% |
AS-SET
AS18027 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 66 are in fix.csv.
- ROA: none32
- Route object: none20
- Route object: RIR12
- Route object: not announced2
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 211.241.60.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 211.241.60.0/24 | No route object for it. A route object for 211.241.60.0/22 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 211.241.61.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 211.241.61.0/24 | No route object for it. A route object for 211.241.60.0/22 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.176.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.176.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.177.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.177.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.178.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.178.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.179.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.179.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.180.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.180.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.181.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.181.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.182.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.182.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.183.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.183.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.184.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.184.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.185.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.185.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.189.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.189.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.190.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.190.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.191.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: none | 220.68.191.0/24 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (filters allowing more-specifics accept it). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 61.38.110.64/26 | No ROA covers it. Add a ROA for AS18027, maxLength 26. |
| Route object: none | 61.38.110.64/26 | No route object for it. Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.188.0/26 | No ROA covers it. Add a ROA for AS18027, maxLength 26. |
| Route object: none | 220.68.188.0/26 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.176.16/28 | No ROA covers it. Add a ROA for AS18027, maxLength 28. |
| Route object: none | 220.68.176.16/28 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.176.224/28 | No ROA covers it. Add a ROA for AS18027, maxLength 28. |
| Route object: none | 220.68.176.224/28 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 220.68.176.8/29 | No ROA covers it. Add a ROA for AS18027, maxLength 29. |
| Route object: none | 220.68.176.8/29 | No route object for it. A route object for 220.68.176.0/20 with origin AS18027 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS18027 in the RIR database for the space. |
| ROA: none | 211.42.48.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: RIR | 211.42.48.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.42.49.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: RIR | 211.42.49.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.42.104.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: RIR | 211.42.104.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.24.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: RIR | 211.241.24.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.26.0/23 | No ROA covers it. Add a ROA for AS18027, maxLength 23. |
| Route object: RIR | 211.241.26.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.52.0/22 | No ROA covers it. Add a ROA for AS18027, maxLength 22. |
| Route object: RIR | 211.241.52.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.52.0/23 | No ROA covers it. Add a ROA for AS18027, maxLength 23. |
| Route object: RIR | 211.241.52.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.54.0/23 | No ROA covers it. Add a ROA for AS18027, maxLength 23. |
| Route object: RIR | 211.241.54.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.56.0/22 | No ROA covers it. Add a ROA for AS18027, maxLength 22. |
| Route object: RIR | 211.241.56.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.60.0/22 | No ROA covers it. Add a ROA for AS18027, maxLength 22. |
| Route object: RIR | 211.241.60.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 220.68.192.0/24 | No ROA covers it. Add a ROA for AS18027, maxLength 24. |
| Route object: RIR | 220.68.192.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 211.241.56.0/21 | No ROA covers it. Add a ROA for AS18027, maxLength 21. |
| Route object: RIR | 211.241.56.0/21 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS18027 whose prefix no peer sees AS18027 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 211.42.48.0/23 | RADB | No ROA |
| 220.68.176.0/20 | 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.