147.229.128.0/18 Brno University of Technology
Announced by AS197451 Brno University of Technology. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 147.229.128.0/18
Prefix
Origin
AS197451 VUTBR-AS
RPKI
RPKI valid
Size
16,384 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 2 covering
In RouteViews
2026-10-15 12:02 UTC
Paths
How 147.229.128.0/18 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 2852×3 197451×2
| Origin | AS197451 Brno University of Technology |
| Origin code | IGP |
| Communities | 174:21101 174:22016 36601:150 36601:174 36601:2001 2852:1:2 |
| Updated | 7d 12h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 174 2852×3 197451×2
| Origin | AS197451 Brno University of Technology |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 21h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 2852 197451×2
| Origin | AS197451 Brno University of Technology |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 1h 40m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS197451 to originate 147.229.128.0/18 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 147.229.128.0/18 | /24 | AS197451 VUTBR-AS | RIPE |
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 |
|---|---|---|---|---|
| 147.229.128.0/18 | AS197451 VUTBR-AS | RADB | VUT akademicky prefix2 | MAINT-AS2852 |
| 147.229.128.0/18 | AS197451 VUTBR-AS | RIPE | VUTBR-NET2 | VUTBR-MNT |
| 147.229.0.0/16 covering | AS197451 VUTBR-AS | RADB | VUTBR | MAINT-AS2852 |
| 147.229.0.0/16 covering | AS197451 VUTBR-AS | RIPE | VUTBR-TCZ | VUTBR-MNT |