140.112.0.0/16 National Taiwan University
Announced by AS17716 National Taiwan University. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 140.112.0.0/16
Prefix
Origin
AS17716 NTU-TW
RPKI
RPKI valid
Size
65,536 addresses
Less specific
More specifics
1
IRR route objects
2 exact, 4 covering
In RouteViews
2026-10-13 00:02 UTC
Paths
How 140.112.0.0/16 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 9505 17716
| Origin | AS17716 National Taiwan University |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 22h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 9505 17716
| Origin | AS17716 National Taiwan University |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 6h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 9505 17716
| Origin | AS17716 National Taiwan University |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 6h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS17716 to originate 140.112.0.0/16 up to /16. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 140.112.0.0/16 | /16 | AS17716 NTU-TW | APNIC |
| 140.112.0.0/12 | /12 | AS1659 ERX-TANET-ASN1 | APNIC |
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 |
|---|---|---|---|---|
| 140.112.0.0/16 | AS17716 NTU-TW | NTTCOM | NTU (proxy-registered route object) | MAINT-ASNET |
| 140.112.0.0/16 | AS9505 TWGATE-AP | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
| 140.112.0.0/12 covering | AS17717 MOECC-IPV6 | LEVEL3 | Proxy-registered route object. Workaround the IRR filter issue for TANet. Because they forgot to add value on their PeeringDB as-set field. | XINGXUNTECHLTD-MNT |
| 140.112.0.0/12 covering | AS1659 ERX-TANET-ASN1 | NTTCOM | TANET (proxy-registered route object) | MAINT-ASNET |
| 140.112.0.0/12 covering | AS1659 ERX-TANET-ASN1 | RADB | Transit Customer AS1659 (TANet) of EBIX (AS17709) | MAINT-AS17709 |
| 140.112.0.0/12 covering | AS9505 TWGATE-AP | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 140.112.0.0/16
1 announced prefix fall inside this one.