Which company owns MAC address prefix 80:3B:F6?

MAC address prefix 80:3B:F6 is registered to LOOK EASY INTERNATIONAL LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:3B:F6 has a network interface built by LOOK EASY INTERNATIONAL LIMITED.

What is the OUI 80:3B:F6?

80:3B:F6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to LOOK EASY INTERNATIONAL LIMITED. It covers every address from 80:3B:F6:00:00:00 to 80:3B:F6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-3B-F6.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 80:3B:F6:00:00:00 that is 80:3B:F6 — 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 LOOK EASY INTERNATIONAL LIMITED located?

LOOK EASY INTERNATIONAL LIMITED is listed at 4th Floor, No. 551, Guang-Fu South Road Taipei Xinyi District TW 11074 in the IEEE OUI registry entry for 80:3B:F6. This is the address the organization registered with the IEEE, which may differ from its current operating address.

LOOK EASY INTERNATIONAL LIMITED

MAC address prefix 80:3B:F6 is registered to LOOK EASY INTERNATIONAL LIMITED in the IEEE OUI registry. Any device whose MAC address begins with 80:3B:F6 has a network interface built by LOOK EASY INTERNATIONAL 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 80:3B:F6:00:00:00 to 80:3B:F6:FF:FF:FF.

OUI prefix: 80:3B:F6
Hyphen form: 80-3B-F6
MAC range: 80:3B:F6:00:00:00 – 80:3B:F6:FF:FF:FF
Addresses in block: 16,777,216
Organization: LOOK EASY INTERNATIONAL LIMITED
Address: 4th Floor, No. 551, Guang-Fu South Road Taipei Xinyi District TW 11074
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.

2017-09-08Assigned to "LOOK EASY INTERNATIONAL LIMITED"
archived source →
2026-07-17Assigned to "LOOK EASY INTERNATIONAL LIMITED"

Nearby in the registry

The prefixes assigned immediately before and after 80:3B:F6:

FAQ

Which company owns MAC address prefix 80:3B:F6?: MAC address prefix 80:3B:F6 is registered to LOOK EASY INTERNATIONAL LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:3B:F6 has a network interface built by LOOK EASY INTERNATIONAL LIMITED.
What is the OUI 80:3B:F6?: 80:3B:F6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to LOOK EASY INTERNATIONAL LIMITED. It covers every address from 80:3B:F6:00:00:00 to 80:3B:F6:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-3B-F6.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 80:3B:F6:00:00:00 that is 80:3B:F6 — 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 LOOK EASY INTERNATIONAL LIMITED located?: LOOK EASY INTERNATIONAL LIMITED is listed at 4th Floor, No. 551, Guang-Fu South Road Taipei Xinyi District TW 11074 in the IEEE OUI registry entry for 80:3B:F6. This is the address the organization registered with the IEEE, which may differ from its current operating address.