AS4693
CSK-IT MANAGEMENT CORPORATION
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 →
Network profile
Source: PeeringDB →Present at 3 internet exchanges: JPIX TOKYO, JPNAP Tokyo: Peering, BBIX Tokyo
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 203.140.0.0/19 | 8.2K |
0.4%
|
CSK-IT MANAGEMENT CORPORATION | JP | — | — |
| 203.179.32.0/19 | 8.2K |
1.5%
|
CSK-IT MANAGEMENT CORPORATION | JP | Tokyo | Tokyo |
| 210.159.96.0/19 | 8.2K |
0.2%
|
CSK-IT MANAGEMENT CORPORATION | JP | — | — |
| 210.166.96.0/19 | 8.2K |
0.0%
|
CSK-IT MANAGEMENT CORPORATION | JP | Tokyo | Taitō City |
| 210.249.192.0/19 | 8.2K |
0.0%
|
CSK-IT MANAGEMENT CORPORATION | JP | — | — |
| 211.7.192.0/21 | 2.0K |
0.0%
|
CSK-IT MANAGEMENT CORPORATION | JP | — | — |
| 211.7.208.0/21 | 2.0K |
0.0%
|
CSK-IT MANAGEMENT CORPORATION | JP | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS4693 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 |
|---|---|---|
| 203.179.32.0/19 | 4,882 | 2026-07-27 23:15:59 |
| 210.166.96.0/19 | 4,852 | 2026-07-27 23:14:45 |
| 210.159.96.0/19 | 4,846 | 2026-07-27 23:15:34 |
| 203.140.0.0/19 | 4,819 | 2026-07-27 23:16:46 |
| 211.7.192.0/21 | 4,817 | 2026-07-27 23:15:25 |
| 211.7.208.0/21 | 4,815 | 2026-07-27 23:18:05 |
| 210.249.192.0/19 | 4,809 | 2026-07-27 23:14:10 |
Frequently Asked Questions
What is AS4693?
AS4693 is an Autonomous System Number assigned to CSK-IT MANAGEMENT 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 AS4693 announce?
AS4693 announces 45.1K IPv4 addresses distributed across 7 routed CIDR prefixes. The network is registered in Japan.
Who operates AS4693?
AS4693 is operated by CSK-IT MANAGEMENT CORPORATION. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS4693 registered in?
AS4693 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
