AS2526
Hitachi, Ltd. IT strategy & Digital Integration Division, Employee Experience Office
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 |
|---|---|---|---|---|---|---|
| 133.145.0.0/16 | 65.5K |
0.9%
|
Hitachi, Ltd. IT strategy & Digital Integration Division, Employee Experience Office | JP | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS2526 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 |
|---|---|---|
| 133.145.0.0/16 | 3,751 | 2026-07-27 00:26:01 |
| 133.145.184.0/24 | 3,483 | 2026-07-27 00:26:01 |
| 133.145.64.0/19 | 3,368 | 2026-07-27 00:26:01 |
| 133.145.96.0/20 | 3,366 | 2026-07-27 00:26:01 |
| 133.145.32.0/19 | 3,365 | 2026-07-27 00:26:01 |
| 133.145.112.0/21 | 3,336 | 2026-07-27 00:26:01 |
| 133.145.128.0/18 | 3,331 | 2026-07-27 00:26:01 |
| 133.145.224.0/19 | 3,326 | 2026-07-27 00:26:01 |
| 133.145.185.0/24 | 3,255 | 2026-07-27 00:26:01 |
Frequently Asked Questions
What is AS2526?
AS2526 is an Autonomous System Number assigned to Hitachi, Ltd. IT strategy & Digital Integration Division, Employee Experience Office. 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 AS2526 announce?
AS2526 announces 65.5K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Japan.
Who operates AS2526?
AS2526 is operated by Hitachi, Ltd. IT strategy & Digital Integration Division, Employee Experience Office. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS2526 registered in?
AS2526 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
