Which company owns MAC address prefix A8:9C:A4?

MAC address prefix A8:9C:A4 is registered to Furrion Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A8:9C:A4 has a network interface built by Furrion Limited.

What is the OUI A8:9C:A4?

A8:9C:A4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Furrion Limited. It covers every address from A8:9C:A4:00:00:00 to A8:9C:A4:FF:FF:FF, or 16,777,216 addresses in total. It is also written A8-9C-A4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in A8:9C:A4:00:00:00 that is A8:9C:A4 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is Furrion Limited located?

Furrion Limited is listed at Units 503C & 505-508, Level 5, Core D, Cyberport 3, 100 Cyberport Road Hong Kong HK 00000 in the IEEE OUI registry entry for A8:9C:A4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Furrion Limited

MAC address prefix A8:9C:A4 is registered to Furrion Limited in the IEEE OUI registry. Any device whose MAC address begins with A8:9C:A4 has a network interface built by Furrion Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from A8:9C:A4:00:00:00 to A8:9C:A4:FF:FF:FF.

OUI prefix: A8:9C:A4
Hyphen form: A8-9C-A4
MAC range: A8:9C:A4:00:00:00 – A8:9C:A4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Furrion Limited
Address: Units 503C & 505-508, Level 5, Core D, Cyberport 3, 100 Cyberport Road Hong Kong HK 00000
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2018-12-21Assigned to "Furrion Limited"
archived source →
2026-07-17Assigned to "Furrion Limited"

Nearby in the registry

The prefixes assigned immediately before and after A8:9C:A4:

FAQ

Which company owns MAC address prefix A8:9C:A4?: MAC address prefix A8:9C:A4 is registered to Furrion Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A8:9C:A4 has a network interface built by Furrion Limited.
What is the OUI A8:9C:A4?: A8:9C:A4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Furrion Limited. It covers every address from A8:9C:A4:00:00:00 to A8:9C:A4:FF:FF:FF, or 16,777,216 addresses in total. It is also written A8-9C-A4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in A8:9C:A4:00:00:00 that is A8:9C:A4 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is Furrion Limited located?: Furrion Limited is listed at Units 503C & 505-508, Level 5, Core D, Cyberport 3, 100 Cyberport Road Hong Kong HK 00000 in the IEEE OUI registry entry for A8:9C:A4. This is the address the organization registered with the IEEE, which may differ from its current operating address.