146.203.151.0/24 Mount Sinai School of Medicine
Announced by AS11452 Mount Sinai School of Medicine. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 146.203.151.0/24
Prefix
Origin
AS11452 MOUNT-SINAI
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 4 covering
In RouteViews
2026-10-14 12:02 UTC
Paths
How 146.203.151.0/24 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 32787 11452
| Origin | AS11452 Mount Sinai School of Medicine |
| Origin code | IGP |
| Communities | 13760:3002 36601:150 36601:2001 36601:13760 |
| Updated | 6h 55m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 32787 11452
| Origin | AS11452 Mount Sinai School of Medicine |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 17h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 32787 11452
| Origin | AS11452 Mount Sinai School of Medicine |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 17h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS11452 to originate 146.203.148.0/22 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 146.203.148.0/22 | /24 | AS11452 MOUNT-SINAI | 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 |
|---|---|---|---|---|
| 146.203.151.0/24 | AS11452 MOUNT-SINAI | RADB | Akamai Technologies, Inc. | MAINT-AS32787 |
| 146.203.148.0/22 covering | AS11452 MOUNT-SINAI | ARIN | Mount Sinai School of Medicine | MNT-MSSM |
| 146.203.128.0/18 covering | AS7029 WINDSTREAM | RADB | Windstream (US LEC) | MAINT-AS7029 |
| 146.203.0.0/16 covering | AS11452 MOUNT-SINAI | LEVEL3 | 146.203.0.0/16 route for MSSMEDU | LEVEL3-MNT |
| 146.203.0.0/16 covering | AS7029 WINDSTREAM | RADB | Windstream (US LEC) | MAINT-AS7029 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.