Which company owns MAC address prefix 3C:CB:4D?

MAC address prefix 3C:CB:4D is registered to Avikus Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 3C:CB:4D has a network interface built by Avikus Co., Ltd.

What is the OUI 3C:CB:4D?

3C:CB:4D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Avikus Co., Ltd. It covers every address from 3C:CB:4D:00:00:00 to 3C:CB:4D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 3C-CB-4D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 3C:CB:4D:00:00:00 that is 3C:CB:4D — 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 Avikus Co., Ltd located?

Avikus Co., Ltd is listed at 11F, 70, Nonhyeon-ro 85-gil Gangnam-gu Seoul KR 06234 in the IEEE OUI registry entry for 3C:CB:4D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Avikus Co., Ltd

MAC address prefix 3C:CB:4D is registered to Avikus Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with 3C:CB:4D has a network interface built by Avikus Co., Ltd. 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 3C:CB:4D:00:00:00 to 3C:CB:4D:FF:FF:FF.

OUI prefix: 3C:CB:4D
Hyphen form: 3C-CB-4D
MAC range: 3C:CB:4D:00:00:00 – 3C:CB:4D:FF:FF:FF
Addresses in block: 16,777,216
Organization: Avikus Co., Ltd
Address: 11F, 70, Nonhyeon-ro 85-gil Gangnam-gu Seoul KR 06234
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 (1)

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

2026-07-17Assigned to "Avikus Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 3C:CB:4D:

FAQ

Which company owns MAC address prefix 3C:CB:4D?: MAC address prefix 3C:CB:4D is registered to Avikus Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 3C:CB:4D has a network interface built by Avikus Co., Ltd.
What is the OUI 3C:CB:4D?: 3C:CB:4D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Avikus Co., Ltd. It covers every address from 3C:CB:4D:00:00:00 to 3C:CB:4D:FF:FF:FF, or 16,777,216 addresses in total. It is also written 3C-CB-4D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 3C:CB:4D:00:00:00 that is 3C:CB:4D — 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 Avikus Co., Ltd located?: Avikus Co., Ltd is listed at 11F, 70, Nonhyeon-ro 85-gil Gangnam-gu Seoul KR 06234 in the IEEE OUI registry entry for 3C:CB:4D. This is the address the organization registered with the IEEE, which may differ from its current operating address.