asn.dev

Autonomous system

AS7582 UMAC-AS-AP - University of Macau

Education ARIN

IPv4 addresses 65.54K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly MO
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

University of Macau

Macau · AI-generated

education university research legacy

The University of Macau (UMAC-AS-AP), Macau's flagship public university, whose campus sits on Hengqin Island under Macau jurisdiction.

What it's used for

  • Campus networking for the university: faculties, teaching and research computing, administrative systems and university-hosted services.
  • The APNIC record describes it as the university's "Border AS", the routing edge through which the campus reaches its upstreams — including academic research networking and Macau commercial ISPs.

Notable

  • An IP here is institutional university space, not an eyeball ISP pool. Almost all of it comes from one contiguous legacy 161.64.0.0/16, which is a large allocation for a single campus and is used internally rather than sold on.
  • Sampled reverse lookups across the block return nothing, so the AS is identified from the registry rather than from rDNS; the holder itself is not in doubt.

Interesting

  • The /16 is a legacy-era block that predates the tight allocation policies APNIC applies today — a size a university starting out now would not receive.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4609Companhia de Telecomunicacoes de Macau SARL153

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, 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 · 65.54K addresses IPv6 1 prefixes

CountryNamePrefixes
MOMacao2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS7582
Registry name
UMAC-AS-AP
Registrant
University of Macau
Abuse contact
icto.net_irt@um.edu.mo
Registered
2008-09-04
Last changed
2023-03-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
67% valid · 2 valid, 1 with no ROA
ROAs
1 authorising AS7582
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
8 naming AS7582

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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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