Autonomous system
AS4641 HKIX-AS-AP The Hong Kong Internet Exchange Limited
Unclassified APNIC
Summary
HKIX (Hong Kong Internet Exchange)
ixp legacy
HKIX-AS-AP belongs to The Hong Kong Internet Exchange Limited, which operates HKIX, Hong Kong's main internet exchange point. HKIX grew out of, and is run in association with, The Chinese University of Hong Kong.
What it's used for
- Running the exchange itself: the peering fabric where hundreds of networks interconnect, plus the route servers and support services around it. The AS is infrastructure, not a transit or access network.
Notable
- An IXP does not carry traffic as a network in the usual sense. Its members swap traffic directly with one another across the fabric, so the AS number appears rarely in AS paths despite the volume flowing through the exchange.
- HKIX is the pivot for regional traffic between Hong Kong, mainland China, and the rest of Asia, which is why it matters far beyond its small address footprint.
Interesting
- HKIX dates to the mid-1990s and is among the older internet exchanges still running under its original name.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Hong Kong Internet Exchange | Hong Kong, China | 123.255.90.238 |
Transit providers
7 upstream, 2 downstream and 15 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 12.29K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 6 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS4641- Registry name
- HKIX-AS-AP
- Registrant
- The Hong Kong Internet Exchange Limited
- Abuse contact
- noc-admin@hkix.net
- Registered
- 2008-09-04
- Last changed
- 2020-06-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 1 authorising AS4641
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 19 naming AS4641
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: 442 networks and 1,782 prefixes, as published 2026-10-16. 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