Which company owns MAC address prefix 80:FF:A8?

MAC address prefix 80:FF:A8 is registered to UNIDIS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:FF:A8 has a network interface built by UNIDIS.

What is the OUI 80:FF:A8?

80:FF:A8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to UNIDIS. It covers every address from 80:FF:A8:00:00:00 to 80:FF:A8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-FF-A8.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 80:FF:A8:00:00:00 that is 80:FF:A8 — 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 UNIDIS located?

UNIDIS is listed at 4 floors(401), 144-4, Gumi-dong Sungnam-si Gyeonggi-do KR 463-810 in the IEEE OUI registry entry for 80:FF:A8. This is the address the organization registered with the IEEE, which may differ from its current operating address.

UNIDIS

MAC address prefix 80:FF:A8 is registered to UNIDIS in the IEEE OUI registry. Any device whose MAC address begins with 80:FF:A8 has a network interface built by UNIDIS. 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:FF:A8:00:00:00 to 80:FF:A8:FF:FF:FF.

OUI prefix: 80:FF:A8
Hyphen form: 80-FF-A8
MAC range: 80:FF:A8:00:00:00 – 80:FF:A8:FF:FF:FF
Addresses in block: 16,777,216
Organization: UNIDIS
Address: 4 floors(401), 144-4, Gumi-dong Sungnam-si Gyeonggi-do KR 463-810
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.

2016-07-29Assigned to "UNIDIS"
archived source →
2026-07-17Assigned to "UNIDIS"

Nearby in the registry

The prefixes assigned immediately before and after 80:FF:A8:

FAQ

Which company owns MAC address prefix 80:FF:A8?: MAC address prefix 80:FF:A8 is registered to UNIDIS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:FF:A8 has a network interface built by UNIDIS.
What is the OUI 80:FF:A8?: 80:FF:A8 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to UNIDIS. It covers every address from 80:FF:A8:00:00:00 to 80:FF:A8:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-FF-A8.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 80:FF:A8:00:00:00 that is 80:FF:A8 — 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 UNIDIS located?: UNIDIS is listed at 4 floors(401), 144-4, Gumi-dong Sungnam-si Gyeonggi-do KR 463-810 in the IEEE OUI registry entry for 80:FF:A8. This is the address the organization registered with the IEEE, which may differ from its current operating address.