130.158.0.0/16 University of Tsukuba
Announced by AS37917 University of Tsukuba. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 130.158.0.0/16
Prefix
Origin
AS37917 UTINS
RPKI
RPKI not found
Size
65,536 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 130.158.0.0/16 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 37917
| Origin | AS37917 University of Tsukuba |
| Origin code | incomplete |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 20h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 41095 59103×4 63770 37917
| Origin | AS37917 University of Tsukuba |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 2d 16h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 2907 37917
| Origin | AS37917 University of Tsukuba |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 4h ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
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 |
|---|---|---|---|---|
| 130.158.0.0/16 | AS37917 UTINS | JPIRR | University of Tsukuba X-Keiro:hcinc-meeting@cc.tsukuba.ac.jp | MAINT-AS37917 |