Autonomous system
AS9411 NONTRINET-AS-AP Kasetsart University, Thailand
Education APNIC
Summary
Kasetsart University (NontriNet)
education university research legacy
AS9411 (NONTRINET-AS-AP) is held by Kasetsart University, Thailand's oldest agricultural university and one of its largest public universities, based at Bang Khen in Bangkok with satellite campuses. NontriNet is the name of the university's campus network — "Nontri" being a long-standing Kasetsart identity, also used for its student and staff account system.
What it's used for
This is a university campus network of the classic shape. RIS observes 18 IPv4 prefixes carrying 65,792 addresses, dominated by the legacy 158.108.0.0/16 and the sixteen /20s deaggregated out of it, plus one 192.102.83.0/24. Alongside that sit 18 IPv6 prefixes — a set of /36s carved from 2406:3100::/32 — and only 5 observed BGP neighbours. A full /16 with five peers is an institution consuming connectivity, not selling it: the peers will be Thai research-network and commercial upstreams, and the address space serves faculties, labs, halls of residence, campus Wi-Fi and public university services. Reverse DNS confirms the identity directly: 158.108.216.5 resolves to www.ku.ac.th, the university's own web presence, and a sampled host in the /24 answers under kasetsart.university.
Notable
- The heavy internal deaggregation — a /20 announced for each sixteenth of the /16, plus /36s per IPv6 slice — is how a large campus splits address space by faculty or site while retaining one AS boundary.
- IPv6 is not decorative here: eighteen announced v6 prefixes against eighteen v4 ones means the campus runs dual-stack in earnest, which is common among South-East Asian research universities connected to regional academic backbones.
158.108.0.0/16is an early allocation. A /16 for a Thai university reflects how address space was distributed in the era when Kasetsart was one of the country's first networked institutions.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 65.79K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| TH | Thailand | 4 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9411- Registry name
- NONTRINET-AS-AP
- Registrant
- Kasetsart University
- Abuse contact
- abuse@ku.ac.th
- Registered
- 2023-12-01
- Last changed
- 2026-09-08
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 36 valid, 0 with no ROA
- ROAs
- 36 authorising AS9411
- ASPA
- 5 declared providers
- IRR
- 100% registered · 36 of 36 announcements
- Route objects
- 72 naming AS9411
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: 445 networks and 1,817 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