AS131830
Institute for Basic Science
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 |
|---|---|---|---|---|---|---|
| 203.241.119.0/24 | 256 |
0.0%
|
Institute for Basic Science | KR | — | — |
| 203.247.183.0/24 | 256 |
5.5%
|
Institute for Basic Science | KR | — | — |
| 203.247.189.0/24 | 256 |
11.3%
|
Institute for Basic Science | KR | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS131830 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 |
|---|---|---|
| 203.247.183.0/24 | 7,868 | 2026-08-04 18:09:05 |
| 203.241.119.0/24 | 7,857 | 2026-08-04 18:09:05 |
| 203.247.189.0/24 | 7,847 | 2026-08-04 18:09:05 |
Frequently Asked Questions
What is AS131830?
AS131830 is an Autonomous System Number assigned to Institute for Basic Science. 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 AS131830 announce?
AS131830 announces 768 IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in South Korea.
Who operates AS131830?
AS131830 is operated by Institute for Basic Science. The organization is based in South Korea. You can view all IP ranges and related ASNs on the organization page.
What country is AS131830 registered in?
AS131830 is registered in South Korea. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
