AS4730
Osaka University
AS4730 is Osaka University. It announces 67,584 IPv4 addresses in 2 prefixes, and 0 IPv6 prefixes.
Japan· APNIC· allocated 1995-08-30· education
67,584
IPv4 addresses announced
2
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
67,584
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Japan67,584 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- OUXNET
- name
- Osaka University
- country
- JP
- source
- apnic
- updated
- 2024-08-13
- descr
- Osaka University / 5-1 Mihogaoka, Ibaraki city, Osaka, Japan
- remarks
- Email address for spam or abuse complaints : odins-room@odins.osaka-u.ac.jp
- maintainer
- MAINT-JPNIC
- maintainer email
- hostmaster@nic.ad.jp
- abuse email
- hostmaster@nic.ad.jp
- abuse phone
- +81-3-5297-2311
- abuse kind
- irt
- admin
- JNIC1-AP
- admin name
- Japan Network Information Center
- admin email
- hostmaster@nic.ad.jp
- admin phone
- +81-3-5297-2312
- admin kind
- role
- admin country
- JP
- tech
- JNIC1-AP
- tech name
- Japan Network Information Center
- tech email
- hostmaster@nic.ad.jp
- tech phone
- +81-3-5297-2312
- tech kind
- role
- tech country
- JP
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 IP71vpngate0.11%
- 911proxy, anyip, froxy0.01%
- None here
- None here
- None here
- None here
- Hosting IP4,8647.20%
- None here
- None here
- None here
- SSH IP1820.27%
- SMTP IP150.02%
- 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 |
|---|---|---|---|---|
| 133.1.0.0/16 | Japan | not found | 19 | 2026-10-02 |
| 192.50.0.0/21 | Japan | not found | 19 | 2026-10-02 |
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