Autonomous system
AS7667 KDDLAB KDDI R&D Laboratories, INC.
Unclassified APNIC
Summary
KDDI Research, Inc.
research enterprise legacy
KDDLAB is the research network of KDDI Research, Inc. — the corporate R&D arm of Japanese carrier KDDI, known for most of its life as KDD R&D Laboratories and based in Fujimino, Saitama.
What it's used for
- A small network:
202.255.44.0/22and192.26.91.0/24, about 1,280 addresses, alongside several IPv6 blocks including2001:200:600::/40. - Reverse DNS lands entirely in
kddilabs.jp— hosts such askddlab.kddilabs.jpanddmz-host-fw.kddilabs.jp. This is laboratory and DMZ infrastructure, not customer space. There are no subscriber pools anywhere in it. - The lab works on network, mobile, security and AI research; the AS carries its own experimental and public-facing systems.
Notable
- A research / corporate network. It should not be attributed to KDDI's commercial carrier business, which routes on entirely different ASNs.
- The
192.26.91.0/24prefix is early "Class C" swamp space, and the IPv6 allocation sits inside2001:200::/23, the block APNIC delegated to Japanese research networks. Both are consistent with a very early participant rather than a modern registration.
Interesting
- The
kddlabname is one of the oldest still in service on the Japanese internet: KDD's international links were how JUNET, Japan's first research network, reached the outside world in the 1980s, and the lab's hosts have been long-running public mirror and FTP sites for decades since.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| JPIX Tokyo | Tokyo, Japan | 210.171.224.36 |
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 2 prefixes · 1.28K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 5 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS7667- Registry name
- KDDLAB
- Registered
- 1997-11-13
- Last changed
- 2026-01-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 40% valid · 2 valid, 3 with no ROA
- ROAs
- 4 authorising AS7667
- ASPA
- no ASPA record
- IRR
- 20% registered · 1 of 5 announcements
- Route objects
- 1 naming AS7667
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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