Autonomous system
AS23774 A-DNS-JP Japan Registry Service Co., Ltd.
Hosting RIPE
Summary
Japan Registry Service
registry dns infrastructure jp
A-DNS-JP is operated by Japan Registry Service Co., Ltd.
What it's used for
- The address space carries registry and DNS infrastructure, evidenced by the netname
JPRS-NAYUTA-CIDR-BLK-JPand the registrantJapan Network Information Center. - The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with 10 observed neighbours, indicating a small, specialized infrastructure footprint rather than a large access or transit network.
Notable
- The registrant
Japan Network Information Centeraligns with the announcer, confirming the space is held by the national registry body. - The inventory consists of a single IPv4 prefix
203.119.1.0/24and one IPv6 prefix2001:dc4::/32, representing a compact and focused address allocation.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| JPIX Tokyo | Tokyo, Japan | 210.171.224.153 |
| Network Service Provider IXP (Distributed IX in Edo) | Tokyo, Japan | 202.249.2.153 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS23774- Registry name
- A-DNS-JP
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2003-06-16
- Last changed
- 2025-08-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS23774
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS23774
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,781 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere