AS2523
Internet Technology Research Consortium
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 133.69.0.0/17 | 32.8K |
0.7%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.192.0/18 | 16.4K |
0.1%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.128.0/19 | 8.2K |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.164.0/22 | 1.0K |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.180.0/22 | 1.0K |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.188.0/22 | 1.0K |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.178.0/23 | 512 |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.186.0/23 | 512 |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.177.0/24 | 256 |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
| 133.69.185.0/24 | 256 |
0.0%
|
Internet Technology Research Consortium | JP | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS2523 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 |
|---|---|---|
| 133.69.0.0/16 | 4,385 | 2026-07-26 14:08:26 |
| 133.69.0.0/20 | 4,384 | 2026-07-26 14:08:26 |
| 133.69.192.0/20 | 4,361 | 2026-07-26 14:08:26 |
Frequently Asked Questions
What is AS2523?
AS2523 is an Autonomous System Number assigned to Internet Technology Research Consortium. 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 AS2523 announce?
AS2523 announces 62.0K IPv4 addresses distributed across 10 routed CIDR prefixes. The network is registered in Japan.
Who operates AS2523?
AS2523 is operated by Internet Technology Research Consortium. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS2523 registered in?
AS2523 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
