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AS23774 Japan Registry Service Co., Ltd.

Japan JP-DNS APNIC 1 IPv4 prefix 1 IPv6 prefix
IPv4 addresses
256
IPv6 /48 networks
65,536
RPKI
0 valid2 no ROA
Peers and downstreams
6

Holder

AS name
JP-DNS
Description
Japan Registry Service Co., Ltd. Chiyoda First Bldg. East 13F, 3-8-1 Nishi-Kanda Chiyoda-ku,Tokyo,101-0065,Japa
Organisation
Japan Registry Service Co., Ltd.
Abuse contact
Not published
Assigned
2003-06-15
Record last changed
2025-08-14 22:14 UTC

Upstream graph

Upstreams and their upstreams, from BGP paths
AS24482 SG.GS AS24482 · SG SG.GS AS35280 F5 Networks SARL AS35280 · FR F5 Networks SARL AS6057 Administracion Nacional de Telecomunicaciones AS6057 · UY Administracion Nacion… AS174 AS174 AS174 AS174 AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS6461 Zayo Bandwidth AS6461 · US Zayo Bandwidth AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS3257 GTT Communications Inc. AS3257 · US GTT Communications In… AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS2914 NTT America, Inc. AS2914 · US NTT America, Inc. AS2497 Internet Initiative Japan Inc. AS2497 · JP Internet Initiative J… AS17676 SoftBank Corp. AS17676 · JP SoftBank Corp. AS23774 Japan Registry Service Co., Ltd. AS23774 · JP Japan Registry Servic…

Network health

Grade C · 65/100
fail Prefixes covered by valid ROAs
0 of 2 announced prefixes are RPKI valid, 2 have no ROA.		 0/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
pass Announces IPv6
1 IPv6 prefix.		 15/15
pass More than one upstream
4 upstreams seen in BGP.		 10/10
pass Working abuse contact
hostmaster@nic.ad.jp is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
pass Registry record maintained
Last changed 2025-08-14.		 5/5
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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AS23774 health AS23774 RPKI
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Routing changes

Last 30 days
2026-10-05 06:58 UTCRelationship changed AS8220 upstream to peer

WHOIS

aut-num:        AS23774
as-name:        A-DNS-JP
handle:         AS23774
remarks:        Japan Registry Service Co., Ltd.
technical,administrative:JNIC1-AP (Japan Network Information Center) <hostmaster@nic.ad.jp>
technical,administrative:JP00275301
abuse:          IRT-JPNIC-JP (IRT-JPNIC-JP) <hostmaster@nic.ad.jp>
last changed:   2025-08-14T22:14:03Z
source:         APNIC (RDAP)