AS2505
High Energy Accelerator Research Organization, KEK
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
- Trust score 65 / 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 |
|---|---|---|---|---|---|---|
| 130.87.0.0/16 | 65.5K |
13.2%
|
High Energy Accelerator Research Organization, KEK | JP | Ibaraki | Tsukuba |
| 202.13.192.0/19 | 8.2K |
6.3%
|
High Energy Accelerator Research Organization, KEK | JP | — | — |
| 192.153.112.0/24 | 256 |
7.0%
|
High Energy Accelerator Research Organization, KEK | JP | — | — |
| 192.153.114.0/24 | 256 |
0.0%
|
High Energy Accelerator Research Organization, KEK | JP | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS2505 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 |
|---|---|---|
| 130.87.0.0/16 | 3,962 | 2026-07-24 20:28:25 |
| 192.153.112.0/24 | 3,902 | 2026-07-24 20:28:25 |
| 192.153.114.0/24 | 3,879 | 2026-07-24 20:28:25 |
| 202.13.192.0/19 | 3,854 | 2026-07-24 20:28:25 |
Frequently Asked Questions
What is AS2505?
AS2505 is an Autonomous System Number assigned to High Energy Accelerator Research Organization, KEK. 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 AS2505 announce?
AS2505 announces 74.2K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Japan.
Who operates AS2505?
AS2505 is operated by High Energy Accelerator Research Organization, KEK. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS2505 registered in?
AS2505 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
