140.247.0.0/16 Harvard University
Announced by AS1742 Harvard University. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 140.247.0.0/16
Prefix
Origin
AS1742 HARVARD-UNIV
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
5
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-15 20:02 UTC
Paths
How 140.247.0.0/16 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 1742
| Origin | AS1742 Harvard University |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 7d 20h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 1742
| Origin | AS1742 Harvard University |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 4h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 3356 1742
| Origin | AS1742 Harvard University |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 8h 58m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS1742 to originate 140.247.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 140.247.0.0/16 | /24 | AS1742 HARVARD-UNIV | 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 |
|---|---|---|---|---|
| 140.247.0.0/16 | AS1742 HARVARD-UNIV | ARIN | HUIT Network Services Patrick McEvilly - Director 784 Memorial Drive Cambridge MA 02139 United States | MNT-HARVAR-Z |
| 140.247.0.0/16 | AS1742 HARVARD-UNIV | RADB | Presidents and Fellows of Harvard College | MAINT-AS1742 |
More specific
Prefixes inside 140.247.0.0/16
5 announced prefixes fall inside this one.