Which company owns MAC address prefix C8:8D:D4?

MAC address prefix C8:8D:D4 is registered to Markone technology Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:8D:D4 has a network interface built by Markone technology Co., Ltd..

What is the OUI C8:8D:D4?

C8:8D:D4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Markone technology Co., Ltd.. It covers every address from C8:8D:D4:00:00:00 to C8:8D:D4:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-8D-D4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:8D:D4:00:00:00 that is C8:8D:D4 — 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 Markone technology Co., Ltd. located?

Markone technology Co., Ltd. is listed at A-2401,2402,2403,2404, 606, Seobusaet-gil, Geumcheon-gu Seoul KR 08504 in the IEEE OUI registry entry for C8:8D:D4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Markone technology Co., Ltd.

MAC address prefix C8:8D:D4 is registered to Markone technology Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with C8:8D:D4 has a network interface built by Markone technology 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 C8:8D:D4:00:00:00 to C8:8D:D4:FF:FF:FF.

OUI prefix: C8:8D:D4
Hyphen form: C8-8D-D4
MAC range: C8:8D:D4:00:00:00 – C8:8D:D4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Markone technology Co., Ltd.
Address: A-2401,2402,2403,2404, 606, Seobusaet-gil, Geumcheon-gu Seoul KR 08504
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.

2024-04-16Assigned to "Markone technology Co., Ltd."
archived source →
2026-07-17Assigned to "Markone technology Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after C8:8D:D4:

FAQ

Which company owns MAC address prefix C8:8D:D4?: MAC address prefix C8:8D:D4 is registered to Markone technology Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:8D:D4 has a network interface built by Markone technology Co., Ltd..
What is the OUI C8:8D:D4?: C8:8D:D4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Markone technology Co., Ltd.. It covers every address from C8:8D:D4:00:00:00 to C8:8D:D4:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-8D-D4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:8D:D4:00:00:00 that is C8:8D:D4 — 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 Markone technology Co., Ltd. located?: Markone technology Co., Ltd. is listed at A-2401,2402,2403,2404, 606, Seobusaet-gil, Geumcheon-gu Seoul KR 08504 in the IEEE OUI registry entry for C8:8D:D4. This is the address the organization registered with the IEEE, which may differ from its current operating address.