146.5.20.0/22 University of Colorado at Boulder
Announced by AS104 University of Colorado at Boulder. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 146.5.20.0/22
Prefix
Origin
AS104 COLORADO-AS
RPKI
RPKI not found
Size
1,024 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 2 covering
In RouteViews
2026-10-13 12:02 UTC
Paths
How 146.5.20.0/22 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 13760 3356 104×3
| Origin | AS104 University of Colorado at Boulder |
| Origin code | IGP |
| Communities | 3356:3 3356:22 3356:100 3356:123 3356:575 3356:903 3356:2004 36601:150 36601:2001 36601:13760 |
| Updated | 5d 12h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 104×3
| Origin | AS104 University of Colorado at Boulder |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 20h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 14041 104
| Origin | AS104 University of Colorado at Boulder |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 20h 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 |
|---|---|---|---|---|
| 146.5.20.0/22 | AS104 COLORADO-AS | RADB | National Solar Observatory at University of Colorado at Boulder | MAINT-AS14041 |
| 146.5.0.0/16 covering | AS11711 TULAROSA-COMMUNICATIONS | ALTDB | Proxy registration to prevent harm from ARIN-NONAUTH shutdown | MAINT-AS7034 |
| 146.5.0.0/16 covering | AS297 AS297 | RADB | NASA Intergrated Services Network (NISN) National Solar Observatory | MAINT-AS297 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.