Autonomous system
AS17687 NICE National University Corporation Nagoya University
Unclassified APNIC
Summary
National University Corporation Nagoya University
education university academic research
NICE is the autonomous system for National University Corporation Nagoya University.
What it's used for
- The address space is registered under the netname
NICE-CIDR-BLK-JPfor the university, with larger blocks held by the Japan Network Information Center. - The AS announces 131,328 IPv4 addresses across 3 prefixes, including two /16 blocks and one /24, while maintaining a single observed routing neighbour.
Notable
- Registrants for the two largest prefixes are listed as the Japan Network Information Center, while the smaller /24 prefix is registered directly to the university.
- The address inventory consists of two large /16 blocks and a single /24 block, all located in Japan.
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 | 185 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 131K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 3 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS17687- Registry name
- NICE
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2001-03-26
- Last changed
- 2016-03-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS17687
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 3 announcements
- Route objects
- 0 naming AS17687
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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