146.189.0.0/16 University of Massachusetts Medical School
Announced by AS5724 University of Massachusetts Medical School. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 146.189.0.0/16
Prefix
Origin
AS5724 UMASSMED
RPKI
RPKI not found
Size
65,536 addresses
Less specific
none
More specifics
3
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-15 08:02 UTC
Paths
How 146.189.0.0/16 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 5724×5
| Origin | AS5724 University of Massachusetts Medical School |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 7d 6h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 6461 46887 398427 5724
| Origin | AS5724 University of Massachusetts Medical School |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 15h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 11164 5724
| Origin | AS5724 University of Massachusetts Medical School |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 7d 15h 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 |
|---|---|---|---|---|
| 146.189.0.0/16 | AS5724 UMASSMED | ARIN | UMASS Chan Prefix Advertisement- object | MNT-UMMC-1-Z |
| 146.189.0.0/16 | AS198949 Radware | RADB | UMassNET | MAINT-AS198949 |
| 146.189.0.0/16 | AS398427 MARKLEY-NETWORK-SERVICES | RADB | Markley Network Services LLC. | MAINT-AS27506 |
More specific
Prefixes inside 146.189.0.0/16
3 announced prefixes fall inside this one.