72.33.0.0/16 University of Wisconsin Madison
Announced by AS59 University of Wisconsin Madison. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 72.33.0.0/16
Prefix
Origin
AS59 WISC-MADISON-AS
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 72.33.0.0/16 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 7018 3128×4 59
| Origin | AS59 University of Wisconsin Madison |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 2381×6 3128 59
| Origin | AS59 University of Wisconsin Madison |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 2381×6 3128 59
| Origin | AS59 University of Wisconsin Madison |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 21h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS59 to originate 72.33.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 72.33.0.0/16 | /24 | AS59 WISC-MADISON-AS | ARIN |
| 72.33.0.0/16 | /24 | AS3128 BRUWS-AS3128 | ARIN |
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 |
|---|---|---|---|---|
| 72.33.0.0/16 | AS59 WISC-MADISON-AS | ARIN | 1210 W Dayton B332 Madison WI 53706 United States | MNT-UWM-3 |
| 72.33.0.0/16 | AS3128 BRUWS-AS3128 | ARIN | University of Wisconsin Madison | MNT-UWM-3 |