Network · data from 2026-11-12
AS4 University of Southern California - AS4
Registry name: ISI-AS - University of Southern California, US · PeeringDB
46IPv4 routes
0.0% RPKI valid · 37.0% with a route object
9IPv6 routes
11.1% RPKI valid · 11.1% with a route object
1RPKI invalid
1 origin · 0 maxLength
53No ROA
37 with no route object for this origin
4Low visibility
seen by under 10% of full-table peers
10Route objects not announced
registered with origin AS4, seen from no peer
Announced routes
Every prefix a peer of the route collectors sees with origin AS4, 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.
| 200.26.255.0/24 | Invalid: origin | Other origin only | 5 1%low visibility |
| 206.117.31.0/24 | No ROA | None | 673 100% |
| 128.9.19.0/24 | No ROA | Nonecovered by 128.9.0.0/16 | 672 100% |
| 128.9.26.0/24 | No ROA | Nonecovered by 128.9.0.0/16 | 672 100% |
| 128.9.34.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.35.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.36.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.37.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.38.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.40.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.43.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.44.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.46.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.47.0/24 | No ROA | Nonecovered by 128.9.32.0/20 | 672 100% |
| 128.9.113.0/24 | No ROA | Nonecovered by 128.9.112.0/20 | 672 100% |
| 128.9.117.0/24 | No ROA | Nonecovered by 128.9.112.0/20 | 672 100% |
| 128.9.122.0/24 | No ROA | Nonecovered by 128.9.112.0/20 | 672 100% |
| 128.9.123.0/24 | No ROA | Nonecovered by 128.9.112.0/20 | 672 100% |
| 128.9.127.0/24 | No ROA | Nonecovered by 128.9.112.0/20 | 672 100% |
| 128.9.192.0/18 | No ROA | Nonecovered by 128.9.0.0/16 | 672 100% |
| 206.117.6.0/24 | No ROA | None | 672 100% |
| 206.117.27.0/24 | No ROA | None | 672 100% |
| 206.117.37.0/24 | No ROA | None | 672 100% |
| 128.9.31.0/24 | No ROA | Nonecovered by 128.9.0.0/16 | 671 100% |
| 2606:d5c0::/32 | No ROA | Other origin only | 633 100% |
| 2804:3edc::/32 | No ROA | Other origin only | 383 60% |
| 2001:1878:401::/48 | No ROA | None | 256 40% |
| 2001:1878:402::/48 | No ROA | None | 256 40% |
| 2001:1878:403::/48 | No ROA | None | 256 40% |
| 2001:1878:404::/48 | No ROA | None | 256 40% |
| 2606:d5c0::/48 | No ROA | None | 154 24% |
| 170.79.218.0/23 | No ROA | Other origin only | 147 22% |
| 165.140.12.0/24 | No ROA | Other origin only | 72 11% |
| 165.140.14.0/24 | No ROA | Other origin only | 72 11% |
| 165.140.13.0/24 | No ROA | Other origin only | 34 5%low visibility |
| 191.7.35.0/24 | No ROA | Other origin only | 26 4%low visibility |
| 2c0f:fdd0::/32 | No ROA | Other origin only | 13 2%low visibility |
| 128.9.0.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.16.0/24 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.17.0/24 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.18.0/24 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.28.0/23 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.30.0/24 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.32.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.64.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.80.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.96.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.112.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.128.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.144.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.160.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.176.0/20 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 198.32.16.0/24 | No ROA | Other IRR onlyNTTCOM | 673 100% |
| 128.9.48.0/20 | No ROA | Other IRR onlyRADB | 672 100% |
| 2001:500:202::/48 | Valid | RIR databaseARIN | 634 100% |
AS-SET
AS4's PeeringDB record names no 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 118 are in fix.csv.
- ROA: origin1
- ROA: none53
- Route object: none37
- Route object: RIR17
- Route object: not announced10
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: origin | 200.26.255.0/24 | ROAs covering it name AS270444, not AS4. If AS4 should announce it, add a ROA for AS4. |
| Route object: none | 200.26.255.0/24 | Route objects for it name AS270444. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 206.117.31.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 206.117.31.0/24 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.19.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.19.0/24 | No route object for it. A route object for 128.9.0.0/16 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.26.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.26.0/24 | No route object for it. A route object for 128.9.0.0/16 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.34.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.34.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.35.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.35.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.36.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.36.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.37.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.37.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.38.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.38.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.40.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.40.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.43.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.43.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.44.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.44.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.46.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.46.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.47.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.47.0/24 | No route object for it. A route object for 128.9.32.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.113.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.113.0/24 | No route object for it. A route object for 128.9.112.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.117.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.117.0/24 | No route object for it. A route object for 128.9.112.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.122.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.122.0/24 | No route object for it. A route object for 128.9.112.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.123.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.123.0/24 | No route object for it. A route object for 128.9.112.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.127.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.127.0/24 | No route object for it. A route object for 128.9.112.0/20 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.192.0/18 | No ROA covers it. Add a ROA for AS4, maxLength 18. |
| Route object: none | 128.9.192.0/18 | No route object for it. A route object for 128.9.0.0/16 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 206.117.6.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 206.117.6.0/24 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 206.117.27.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 206.117.27.0/24 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 206.117.37.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 206.117.37.0/24 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.31.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 128.9.31.0/24 | No route object for it. A route object for 128.9.0.0/16 with origin AS4 covers it (filters allowing more-specifics accept it). Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2606:d5c0::/32 | No ROA covers it. Add a ROA for AS4, maxLength 32. |
| Route object: none | 2606:d5c0::/32 | Route objects for it name AS47. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2804:3edc::/32 | No ROA covers it. Add a ROA for AS4, maxLength 32. |
| Route object: none | 2804:3edc::/32 | Route objects for it name AS266625. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2001:1878:401::/48 | No ROA covers it. Add a ROA for AS4, maxLength 48. |
| Route object: none | 2001:1878:401::/48 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2001:1878:402::/48 | No ROA covers it. Add a ROA for AS4, maxLength 48. |
| Route object: none | 2001:1878:402::/48 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2001:1878:403::/48 | No ROA covers it. Add a ROA for AS4, maxLength 48. |
| Route object: none | 2001:1878:403::/48 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2001:1878:404::/48 | No ROA covers it. Add a ROA for AS4, maxLength 48. |
| Route object: none | 2001:1878:404::/48 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2606:d5c0::/48 | No ROA covers it. Add a ROA for AS4, maxLength 48. |
| Route object: none | 2606:d5c0::/48 | No route object for it. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 170.79.218.0/23 | No ROA covers it. Add a ROA for AS4, maxLength 23. |
| Route object: none | 170.79.218.0/23 | Route objects for it name AS266306. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 165.140.12.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 165.140.12.0/24 | Route objects for it name AS400215. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 165.140.14.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 165.140.14.0/24 | Route objects for it name AS400215. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 165.140.13.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 165.140.13.0/24 | Route objects for it name AS400215. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 191.7.35.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: none | 191.7.35.0/24 | Route objects for it name AS263309. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 2c0f:fdd0::/32 | No ROA covers it. Add a ROA for AS4, maxLength 32. |
| Route object: none | 2c0f:fdd0::/32 | Route objects for it name AS37358. Add a route object with origin AS4 in the RIR database for the space. |
| ROA: none | 128.9.0.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.0.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.16.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: RIR | 128.9.16.0/24 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.17.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: RIR | 128.9.17.0/24 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.18.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: RIR | 128.9.18.0/24 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.28.0/23 | No ROA covers it. Add a ROA for AS4, maxLength 23. |
| Route object: RIR | 128.9.28.0/23 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.30.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: RIR | 128.9.30.0/24 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.32.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.32.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.64.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.64.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.80.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.80.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.96.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.96.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.112.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.112.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.128.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.128.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.144.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.144.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.160.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.160.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.176.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.176.0/20 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 198.32.16.0/24 | No ROA covers it. Add a ROA for AS4, maxLength 24. |
| Route object: RIR | 198.32.16.0/24 | Route object only in NTTCOM. Add it in the RIR database for the space. |
| ROA: none | 128.9.48.0/20 | No ROA covers it. Add a ROA for AS4, maxLength 20. |
| Route object: RIR | 128.9.48.0/20 | Route object only in RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS4 whose prefix no peer sees AS4 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 103.140.158.0/24 | APNIC | Valid |
| 103.140.159.0/24 | APNIC | Valid |
| 128.9.0.0/16 | NTTCOM | No ROA |
| 128.9.192.0/20 | NTTCOM | No ROA |
| 128.9.208.0/20 | NTTCOM | No ROA |
| 128.9.224.0/20 | NTTCOM | No ROA |
| 128.9.240.0/20 | NTTCOM | No ROA |
| 198.32.18.0/24 | NTTCOM | No ROA |
| 206.117.9.0/24 | NTTCOM | No ROA |
| 206.117.10.0/24 | NTTCOM | 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.