133.100.12.0/22 Fukuoka University
Announced by AS18148 Fukuoka University. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 133.100.12.0/22
Prefix
Origin
AS18148 FUKUOKA-U
RPKI
RPKI valid
Size
1,024 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 2 covering
In RouteViews
2026-10-14 00:02 UTC
Paths
How 133.100.12.0/22 is reached
Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.
AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 2497 2907×3 18148
| Origin | AS18148 Fukuoka University |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 22h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 2497 2907×3 18148
| Origin | AS18148 Fukuoka University |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 6h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 2907 18148
| Origin | AS18148 Fukuoka University |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 6h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS18148 to originate 133.100.12.0/22 up to /22. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 133.100.12.0/22 | /22 | AS18148 FUKUOKA-U | APNIC |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 133.100.12.0/22 | AS18148 FUKUOKA-U | JPIRR | Fukuoka University | MAINT-AS2907 |
| 133.100.12.0/22 | AS18148 FUKUOKA-U | NTTCOM | Fukuoka University | MAINT-AS18148 |
| 133.100.0.0/16 covering | AS18148 FUKUOKA-U | JPIRR | Fukuoka University | MAINT-AS2907 |
| 133.100.0.0/16 covering | AS18148 FUKUOKA-U | NTTCOM | Fukuoka University | MAINT-AS18148 |