AS18047
National Tsing-Hua University
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 140.114.0.0/16 | 65.5K |
46.0%
|
National Tsing-Hua University | TW | Hsinchu City | Hsinchu |
| 120.127.160.0/19 | 8.2K |
83.4%
|
National Tsing-Hua University | TW | Hsinchu City | Hsinchu |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS18047 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 120.127.160.0/19 | 5,091 | 2026-07-24 10:26:49 |
| 140.114.0.0/16 | 4,838 | 2026-07-24 10:27:41 |
Frequently Asked Questions
What is AS18047?
AS18047 is an Autonomous System Number assigned to National Tsing-Hua University. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS18047 announce?
AS18047 announces 73.7K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Taiwan.
Who operates AS18047?
AS18047 is operated by National Tsing-Hua University. The organization is based in Taiwan. You can view all IP ranges and related ASNs on the organization page.
What country is AS18047 registered in?
AS18047 is registered in Taiwan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
