MCAT Ltd.
AS131923 is MCAT Ltd. (mcat.co.jp). It announces 22,528 IPv4 addresses in 10 prefixes, and 1 IPv6 prefixes.
Japan· APNIC· allocated 2011-08-04· isp
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Japan22,528 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- MCAT
- name
- MCAT Ltd.
- country
- JP
- source
- jpnic
- updated
- 2023-04-10
- descr
- MCAT Ltd.
- admin
- JP00148370
- tech
- JP00148370
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP211alliedtelesis, vpngate0.94%
- anyip, geonix, proxyseller0.42%
- None here
- floppydata0.01%
- None here
- None here
- Hosting IP2,30410.23%
- None here
- None here
- None here
- SSH IP260.12%
- 0.00%
- 0.10%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 103.95.104.0/22 | Japan | valid | 17 | 2026-10-02 |
| 120.50.192.0/20 | Japan | valid | 17 | 2026-10-02 |
| 133.88.87.0/24 | Japan | valid | 17 | 2026-10-02 |
| 133.88.88.0/22 | Japan | valid | 17 | 2026-10-02 |
| 133.88.92.0/23 | Japan | valid | 17 | 2026-10-02 |
| 133.88.94.0/24 | Japan | valid | 17 | 2026-10-02 |
| 133.247.136.0/21 | Japan | valid | 17 | 2026-10-02 |
| 133.247.240.0/20 | Japan | valid | 17 | 2026-10-02 |
| 218.45.64.0/19 | Japan | valid | 17 | 2026-10-02 |
| 219.100.156.0/22 | Japan | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2401:5ac0::/32 | Japan | valid | 20 | 2026-10-02 |
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