AS4641 — HKIX-AS-AP The Hong Kong Internet Exchange Limited

AS4641 announces 2 IPv4 prefixes covering 12,288 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 123.255.96.0/19
• 202.45.176.0/20
• 2405:3001::/32

Upstream networks

• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS24482 SG.GS
• AS55720 Gigabit Hosting Sdn Bhd
• AS8359 MTS PJSC

Downstream networks

• AS38345 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
• AS24149 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.

Adjacent networks

• AS38345 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS2914 NTT America, Inc.
• AS24149 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS55720 Gigabit Hosting Sdn Bhd
• AS4635 Hong Kong Internet Exchange--Route Server 1
• AS8359 MTS PJSC

Internet exchanges

• Hong Kong Internet Exchange — Hong Kong, China