Network · data from 2026-11-12
AS18031 SANGMYUNG-AS-KR-KR - Sangmyung University
Registry name: SANGMYUNG-AS-KR-KR - Sangmyung University, KR · not in PeeringDB
19IPv4 routes
0.0% RPKI valid · 94.7% with a route object
0IPv6 routes
0RPKI invalid
0 origin · 0 maxLength
19No ROA
1 with no route object for this origin
0Low visibility
seen by under 10% of full-table peers
1Route objects not announced
registered with origin AS18031, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS18031, 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.
| 61.73.57.0/24 | No ROA | None | 673 100% |
| 61.72.126.0/23 | No ROA | Other IRR onlyRADB | 673 100% |
| 61.72.128.0/23 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.40.0/21 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.48.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.108.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.109.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.110.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.111.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 117.16.122.0/23 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.168.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.169.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.170.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.171.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.172.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.173.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.174.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 203.237.175.0/24 | No ROA | Other IRR onlyRADB | 673 100% |
| 220.149.24.0/21 | No ROA | Other IRR onlyRADB | 673 100% |
AS-SET
AS18031 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 39 are in fix.csv.
- ROA: none19
- Route object: none1
- Route object: RIR18
- Route object: not announced1
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 61.73.57.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: none | 61.73.57.0/24 | No route object for it. Add a route object with origin AS18031 in the RIR database for the space. |
| ROA: none | 61.72.126.0/23 | No ROA covers it. Add a ROA for AS18031, maxLength 23. |
| Route object: RIR | 61.72.126.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 61.72.128.0/23 | No ROA covers it. Add a ROA for AS18031, maxLength 23. |
| Route object: RIR | 61.72.128.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.40.0/21 | No ROA covers it. Add a ROA for AS18031, maxLength 21. |
| Route object: RIR | 117.16.40.0/21 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.48.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 117.16.48.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.108.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 117.16.108.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.109.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 117.16.109.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.110.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 117.16.110.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.111.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 117.16.111.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 117.16.122.0/23 | No ROA covers it. Add a ROA for AS18031, maxLength 23. |
| Route object: RIR | 117.16.122.0/23 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.168.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.168.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.169.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.169.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.170.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.170.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.171.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.171.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.172.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.172.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.173.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.173.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.174.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.174.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 203.237.175.0/24 | No ROA covers it. Add a ROA for AS18031, maxLength 24. |
| Route object: RIR | 203.237.175.0/24 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 220.149.24.0/21 | No ROA covers it. Add a ROA for AS18031, maxLength 21. |
| Route object: RIR | 220.149.24.0/21 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS18031 whose prefix no peer sees AS18031 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 203.237.168.0/21 | 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.