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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Yahoo Japan
Yahoo! Japan is a Japanese web portal.
Network profile
Source: PeeringDB →Present at 7 internet exchanges: JPNAP Tokyo: Peering, BBIX Tokyo, BBIX Osaka, JPIX TOKYO, JPIX OSAKA, BBIX Singapore, Equinix Singapore
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS38631 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 |
|---|---|---|
| 43.223.17.0/24 | 18,280 | 2026-07-24 23:12:39 |
| 43.223.24.0/24 | 8,936 | 2026-07-24 23:12:49 |
| 147.92.247.0/24 | 8,691 | 2026-07-24 23:12:56 |
| 147.92.188.0/24 | 8,516 | 2026-07-24 23:12:38 |
| 147.92.164.0/24 | 8,316 | 2026-07-24 23:12:45 |
| 147.92.168.0/24 | 8,309 | 2026-07-24 23:12:45 |
| 147.92.165.0/24 | 8,305 | 2026-07-24 23:12:45 |
| 147.92.167.0/24 | 8,295 | 2026-07-24 23:12:45 |
| 147.92.166.0/24 | 8,293 | 2026-07-24 23:12:45 |
| 43.223.21.0/24 | 6,055 | 2026-07-24 23:13:27 |
| 43.223.18.0/24 | 5,965 | 2026-07-24 23:13:25 |
| 147.92.233.0/24 | 5,874 | 2026-07-24 23:13:25 |
| 43.223.25.0/24 | 5,847 | 2026-07-24 23:13:25 |
| 119.235.232.0/24 | 5,507 | 2026-07-24 23:12:52 |
| 119.235.224.0/24 | 5,381 | 2026-07-24 23:12:52 |
| 43.223.81.0/24 | 5,363 | 2026-07-24 23:12:35 |
| 43.223.82.0/24 | 5,349 | 2026-07-24 23:12:36 |
| 43.223.77.0/24 | 5,340 | 2026-07-24 23:12:39 |
| 43.223.16.0/24 | 5,337 | 2026-07-24 23:12:37 |
| 43.223.84.0/24 | 5,336 | 2026-07-24 23:12:39 |
| 43.223.83.0/24 | 5,332 | 2026-07-24 23:12:39 |
| 119.235.236.0/23 | 5,311 | 2026-07-24 23:12:52 |
| 119.235.237.0/24 | 5,306 | 2026-07-24 23:12:52 |
| 119.235.236.0/24 | 5,304 | 2026-07-24 23:12:52 |
| 119.235.235.0/24 | 5,299 | 2026-07-24 23:12:52 |
| 43.223.78.0/24 | 5,267 | 2026-07-24 23:12:37 |
| 203.104.137.0/24 | 5,266 | 2026-07-24 23:12:35 |
| 147.92.252.0/24 | 5,260 | 2026-07-24 23:12:35 |
| 43.223.43.0/24 | 5,251 | 2026-07-24 23:12:39 |
| 203.104.138.0/24 | 5,250 | 2026-07-24 23:12:36 |
| 203.104.139.0/24 | 5,249 | 2026-07-24 23:12:39 |
| 43.223.44.0/24 | 5,243 | 2026-07-24 23:12:39 |
| 43.223.64.0/24 | 5,243 | 2026-07-24 23:12:45 |
| 43.223.73.0/24 | 5,242 | 2026-07-24 23:12:41 |
| 43.223.45.0/24 | 5,235 | 2026-07-24 23:12:37 |
| 147.92.254.0/24 | 5,233 | 2026-07-24 23:12:39 |
| 203.104.140.0/24 | 5,230 | 2026-07-24 23:12:39 |
| 147.92.255.0/24 | 5,220 | 2026-07-24 23:12:39 |
| 203.104.133.0/24 | 5,213 | 2026-07-24 23:12:39 |
| 43.223.74.0/24 | 5,205 | 2026-07-24 23:12:41 |
| 43.223.79.0/24 | 5,204 | 2026-07-24 23:12:37 |
| 43.223.46.0/24 | 5,202 | 2026-07-24 23:12:40 |
| 43.223.69.0/24 | 5,201 | 2026-07-24 23:12:41 |
| 43.223.70.0/24 | 5,198 | 2026-07-24 23:12:41 |
| 43.223.66.0/24 | 5,191 | 2026-07-24 23:12:41 |
| 43.223.80.0/24 | 5,191 | 2026-07-24 23:12:40 |
| 43.223.0.0/16 | 5,183 | 2026-07-24 23:12:41 |
| 43.223.76.0/24 | 5,182 | 2026-07-24 23:12:41 |
| 43.223.90.0/24 | 5,181 | 2026-07-24 23:12:41 |
| 43.223.5.0/24 | 5,173 | 2026-07-24 23:12:44 |
Showing top 50 of 147 announced prefixes by sample volume.
Frequently Asked Questions
What is AS38631?
AS38631 is an Autonomous System Number assigned to LY Corporation. 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 AS38631 announce?
AS38631 announces 108.3K IPv4 addresses distributed across 13 routed CIDR prefixes. The network is registered in Japan.
Who operates AS38631?
AS38631 is operated by LY Corporation. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS38631 registered in?
AS38631 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
