Internet Technology Research Consortium
AS2523 is Internet Technology Research Consortium (itrc.net). It announces 61,944 IPv4 addresses in 3 prefixes, and 1 IPv6 prefixes.
Japan· APNIC· allocated 2002-04-05· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Japan61,952 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- SHIN-ITRC-NET
- name
- Internet Technology Research Consortium
- country
- JP
- source
- apnic
- updated
- 2024-10-15
- descr
- Internet Technology Research Consortium / c/o Prof. Yasuo Okabe, Academic Center for Computing and Media Studies, Kyoto University, Yoshida-Honmachi, Sakyo, Kyoto
- remarks
- Email address for spam or abuse complaints : noc@mail.itrc.net
- 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.
- 0.01%
- None here
- None here
- None here
- None here
- None here
- Hosting IP5120.83%
- None here
- None here
- None here
- SSH IP110.02%
- 0.00%
- 0.01%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 133.69.0.0/16 | Japan | not found | 19 | 2026-10-02 |
| 133.69.0.0/20 | Japan | not found | 19 | 2026-10-02 |
| 133.69.192.0/20 | Japan | not found | 19 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2407:e0c0::/32 | Japan | not found | 20 | 2026-10-02 |
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