asn.dev

Autonomous system

AS24453 CRU-AS-AP Chandrakasem Rajabahat University

Unclassified ARIN

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly TH
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Chandrakasem Rajabhat University

Thailand · AI-generated

education university thailand

The AS handle CRU-AS-AP is held by Chandrakasem Rajabhat University.

What it's used for

  • The address space carries the university's internal network, identified by the netname Chandra-network and registrant IRT-CRU-TH.
  • The AS announces a single IPv4 prefix, 202.151.40.0/21, comprising 2048 addresses, with 0 IPv6 prefixes.
  • With only 1 observed neighbour, the low address-to-neighbour ratio indicates this is an isolated access network for the institution rather than a transit provider.

Notable

  • The registrant IRT-CRU-TH aligns directly with the announcer, confirming the space is owned and operated by the university.
  • The inventory consists of a single contiguous /21 block, typical of a dedicated institutional allocation.

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

Full topology · Graph

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.

ASNetworkPaths seen
AS4621UNINET-TH536

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

Shape and geography

IPv4 1 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
THThailand1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS24453
Registry name
CRU-AS-AP
Registrant
Chandrakasem Rajabahat University
Abuse contact
network@chandra.ac.th
Registered
2012-09-25
Last changed
2020-05-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 8 valid, 0 with no ROA
ROAs
10 authorising AS24453
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
19 naming AS24453

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

Cross-check