140.114.0.0/16 National Tsing-Hua University
Announced by AS18047 National Tsing-Hua University. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 140.114.0.0/16
Prefix
Origin
AS18047 NTHU-TW
RPKI
RPKI valid
Size
65,536 addresses
Less specific
More specifics
0
IRR route objects
3 exact, 4 covering
In RouteViews
2026-10-15 08:02 UTC
Paths
How 140.114.0.0/16 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 3356 9505 18047
| Origin | AS18047 National Tsing-Hua University |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 1d 3h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 9505 18047
| Origin | AS18047 National Tsing-Hua University |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 14h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 9505 18047
| Origin | AS18047 National Tsing-Hua University |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 7d 14h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS18047 to originate 140.114.0.0/16 up to /16. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 140.114.0.0/16 | /16 | AS18047 NTHU-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 |
|---|---|---|---|---|
| 140.114.0.0/16 | AS18047 NTHU-TW | APNIC | Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist. | MAINT-TW-TWNIC |
| 140.114.0.0/16 | AS18047 NTHU-TW | NTTCOM | NTHU (proxy-registered route object) | MAINT-ASNET |
| 140.114.0.0/16 | 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.