Network · data from 2026-11-12
AS18097 DCN - D.C.N. Corporation
Registry name: DCN - D.C.N. Corporation, JP · not in PeeringDB
19IPv4 routes
0.0% RPKI valid · 31.6% with a route object
1IPv6 routes
0.0% RPKI valid · 100.0% with a route object
0RPKI invalid
0 origin · 0 maxLength
20No ROA
13 with no route object for this origin
13Low visibility
seen by under 10% of full-table peers
7Route objects not announced
registered with origin AS18097, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS18097, 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.
| 216.179.198.0/23 | No ROA | None | 4 1%low visibility |
| 45.113.172.0/22 | No ROA | None | 2 0%low visibility |
| 103.53.96.0/22 | No ROA | None | 2 0%low visibility |
| 121.100.56.0/22 | No ROA | None | 2 0%low visibility |
| 121.100.60.0/22 | No ROA | None | 2 0%low visibility |
| 153.124.232.0/24 | No ROA | None | 2 0%low visibility |
| 153.124.233.0/24 | No ROA | None | 2 0%low visibility |
| 153.124.234.0/24 | No ROA | None | 2 0%low visibility |
| 153.124.235.0/24 | No ROA | None | 2 0%low visibility |
| 210.189.176.0/22 | No ROA | None | 2 0%low visibility |
| 210.189.180.0/22 | No ROA | None | 2 0%low visibility |
| 210.189.184.0/22 | No ROA | None | 2 0%low visibility |
| 210.189.188.0/22 | No ROA | None | 2 0%low visibility |
| 119.15.144.0/21 | No ROA | Other IRR onlyRADB | 672 100% |
| 103.36.140.0/22 | No ROA | Other IRR onlyRADB | 671 100% |
| 103.83.24.0/22 | No ROA | Other IRR onlyRADB | 671 100% |
| 123.108.84.0/22 | No ROA | Other IRR onlyRADB | 671 100% |
| 219.105.32.0/20 | No ROA | Other IRR onlyRADB | 671 100% |
| 27.109.120.0/22 | No ROA | Other IRR onlyRADB | 669 99% |
| 2402:c400::/32 | No ROA | Other IRR onlyRADB | 635 100% |
AS-SET
AS18097 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 47 are in fix.csv.
- ROA: none20
- Route object: none13
- Route object: RIR7
- Route object: not announced7
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 216.179.198.0/23 | No ROA covers it. Add a ROA for AS18097, maxLength 23. |
| Route object: none | 216.179.198.0/23 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 45.113.172.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 45.113.172.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 103.53.96.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 103.53.96.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 121.100.56.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 121.100.56.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 121.100.60.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 121.100.60.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 153.124.232.0/24 | No ROA covers it. Add a ROA for AS18097, maxLength 24. |
| Route object: none | 153.124.232.0/24 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 153.124.233.0/24 | No ROA covers it. Add a ROA for AS18097, maxLength 24. |
| Route object: none | 153.124.233.0/24 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 153.124.234.0/24 | No ROA covers it. Add a ROA for AS18097, maxLength 24. |
| Route object: none | 153.124.234.0/24 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 153.124.235.0/24 | No ROA covers it. Add a ROA for AS18097, maxLength 24. |
| Route object: none | 153.124.235.0/24 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 210.189.176.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 210.189.176.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 210.189.180.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 210.189.180.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 210.189.184.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 210.189.184.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 210.189.188.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: none | 210.189.188.0/22 | No route object for it. Add a route object with origin AS18097 in the RIR database for the space. |
| ROA: none | 119.15.144.0/21 | No ROA covers it. Add a ROA for AS18097, maxLength 21. |
| Route object: RIR | 119.15.144.0/21 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 103.36.140.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: RIR | 103.36.140.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 103.83.24.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: RIR | 103.83.24.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 123.108.84.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: RIR | 123.108.84.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 219.105.32.0/20 | No ROA covers it. Add a ROA for AS18097, maxLength 20. |
| Route object: RIR | 219.105.32.0/20 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 27.109.120.0/22 | No ROA covers it. Add a ROA for AS18097, maxLength 22. |
| Route object: RIR | 27.109.120.0/22 | Route object only in RADB. Add it in the RIR database for the space. |
| ROA: none | 2402:c400::/32 | No ROA covers it. Add a ROA for AS18097, maxLength 32. |
| Route object: RIR | 2402:c400::/32 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS18097 whose prefix no peer sees AS18097 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 202.53.208.0/20 | RADB | No ROA |
| 202.60.16.0/20 | RADB | No ROA |
| 216.179.238.0/23 | RADB | No ROA |
| 216.179.244.0/23 | JPIRR | Invalid: origin |
| 216.179.248.0/23 | JPIRR | No ROA |
| 216.179.252.0/23 | JPIRR | Invalid: origin |
| 2407:f600::/32 | 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.