Autonomous system
AS23826 DAIDO-IT Daido University
Unclassified ARIN
Summary
Daido University
education university japan
The AS handle DAIDO-IT is held by Daido University.
What it's used for
- The address space is registered under the netname
DICNET-1-CIDR-BLK-JPwith the Japan Network Information Center, indicating an institutional allocation for the university. - The network announces a single IPv4 prefix of 202.11.120.0/22, comprising 1024 addresses, with no IPv6 prefixes in inventory.
- With only one observed neighbour in the routing system, the low neighbour count relative to the address block suggests a direct connection or limited peering arrangement typical of an isolated institutional network rather than a transit provider.
Notable
- The RDAP registrant for the announced prefix is the Japan Network Information Center, which acts as the registry authority for Japanese IP space, while the AS holder is Daido University.
- The address inventory consists of a single contiguous /22 block, representing a standard-sized allocation for a mid-sized educational institution.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2907 | Research Organization of Information and Systems, National Institute of Informatics | 183 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS23826- Registry name
- DAIDO-IT
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2003-06-16
- Last changed
- 2013-01-31
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS23826
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 1 naming AS23826
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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