Autonomous system
AS9355 NICT National Institute of Information and Communications Technology
Education ARIN Educational/Research
Summary
NICT (National Institute of Information and Communications Technology)
research government education legacy
AS9355 (NICT) is held by the National Institute of Information and Communications Technology, Japan's national research institute for information and communications, headquartered in Koganei, Tokyo. NICT is a public research body, and it also builds and runs network testbeds — most notably JGN, the high-speed R&D network testbed it has operated since the late 1990s.
What it's used for
The evidence is that of a research institution's own network, not a provider. RIS observes 2 IPv4 prefixes — 133.243.0.0/16 and 133.140.0.0/16, 131,072 addresses between them — one IPv6 /48 (2001:df0:232::/48), and 14 BGP neighbours. Two clean, unsplit /16s is a classic legacy academic allocation: 133/8 is the historic Japanese research and university range, and institutions there hold whole /16s that they never had to fragment. The address count is large but the structure is flat, which is what an organisation using space internally looks like, as opposed to a provider slicing blocks out for customers. Fourteen neighbours is more than a plain end-site would carry and is consistent with a research body that peers with academic and testbed networks in addition to buying commercial transit. The reverse-DNS sample returned nothing usable, so this card makes no claim about how the zone is delegated or what naming is in use.
Notable
- NICT's remit spans ICT research broadly, from network testbeds to time and frequency standards and space-weather work.
- The
133/8prefixes are legacy academic space, which is why a research institute holds two/16s. - IPv6 is announced only as a single
/48, which is small relative to the IPv4 holdings.
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 | 210.171.224.148 |
Transit providers
4 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 · 131K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9355- Registry name
- NICT
- Registered
- 1998-08-17
- Last changed
- 2025-12-22
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- National Institute of Information and Communications Technology
- Also known as
- NICT
- Network type
- Educational/Research
- Scope
- Asia Pacific
- Traffic ratio
- Mostly Inbound
- Peering policy
- Restrictive
- Present at
- 1 exchanges
- Website
- http://www.nict.go.jp/en/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 67% valid · 2 valid, 1 with no ROA
- ROAs
- 2 authorising AS9355
- ASPA
- no ASPA record
- IRR
- 67% registered · 2 of 3 announcements
- Route objects
- 2 naming AS9355
Reputation
Classification and threat
Education University, school or national research and education network.
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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