Japan Registry Service Co., Ltd.
AS23774 is Japan Registry Service Co., Ltd. (jprs.jp). It announces 256 IPv4 addresses in 1 prefixes, and 1 IPv6 prefixes.
Japan· APNIC· allocated 2003-06-16· business
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Japan256 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- JP-DNS
- name
- Japan Registry Service Co., Ltd.
- country
- JP
- source
- apnic
- updated
- 2024-08-16
- descr
- Japan Registry Service Co., Ltd. / Chiyoda First Bldg. East 13F, 3-8-1 Nishi-Kanda Chiyoda-ku,Tokyo,101-0065,Japa
- remarks
- Email address for spam or abuse complaints : abuse@jprs.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.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 1.17%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 203.119.1.0/24 | Japan | not found | 16 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:dc4::/32 | Japan | not found | 19 | 2026-10-02 |
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.