Which company owns MAC address prefix D0:EB:9E?

MAC address prefix D0:EB:9E is registered to Seowoo Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D0:EB:9E has a network interface built by Seowoo Inc..

What is the OUI D0:EB:9E?

D0:EB:9E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Seowoo Inc.. It covers every address from D0:EB:9E:00:00:00 to D0:EB:9E:FF:FF:FF, or 16,777,216 addresses in total. It is also written D0-EB-9E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D0:EB:9E:00:00:00 that is D0:EB:9E — 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 Seowoo Inc. located?

Seowoo Inc. is listed at #B101 Seojung B/D, 590-9 Guui-dong, Gwangjin-gu, Seoul KR 143-831 in the IEEE OUI registry entry for D0:EB:9E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Seowoo Inc.

MAC address prefix D0:EB:9E is registered to Seowoo Inc. in the IEEE OUI registry. Any device whose MAC address begins with D0:EB:9E has a network interface built by Seowoo Inc.. 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 D0:EB:9E:00:00:00 to D0:EB:9E:FF:FF:FF.

OUI prefix: D0:EB:9E
Hyphen form: D0-EB-9E
MAC range: D0:EB:9E:00:00:00 – D0:EB:9E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Seowoo Inc.
Address: #B101 Seojung B/D, 590-9 Guui-dong, Gwangjin-gu, Seoul KR 143-831
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 "Seowoo Inc."
archived source →
2026-07-17Assigned to "Seowoo Inc."

Nearby in the registry

The prefixes assigned immediately before and after D0:EB:9E:

FAQ

Which company owns MAC address prefix D0:EB:9E?: MAC address prefix D0:EB:9E is registered to Seowoo Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D0:EB:9E has a network interface built by Seowoo Inc..
What is the OUI D0:EB:9E?: D0:EB:9E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Seowoo Inc.. It covers every address from D0:EB:9E:00:00:00 to D0:EB:9E:FF:FF:FF, or 16,777,216 addresses in total. It is also written D0-EB-9E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D0:EB:9E:00:00:00 that is D0:EB:9E — 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 Seowoo Inc. located?: Seowoo Inc. is listed at #B101 Seojung B/D, 590-9 Guui-dong, Gwangjin-gu, Seoul KR 143-831 in the IEEE OUI registry entry for D0:EB:9E. This is the address the organization registered with the IEEE, which may differ from its current operating address.