Which company owns MAC address prefix 8C:E3:8E?

MAC address prefix 8C:E3:8E is registered to Kioxia Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 8C:E3:8E has a network interface built by Kioxia Corporation.

What is the OUI 8C:E3:8E?

8C:E3:8E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Kioxia Corporation. It covers every address from 8C:E3:8E:00:00:00 to 8C:E3:8E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 8C-E3-8E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 8C:E3:8E:00:00:00 that is 8C:E3:8E — 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 Kioxia Corporation located?

Kioxia Corporation is listed at 1-21, Shibaura 3-chome Minato-ku Tokyo JP 108-0023 in the IEEE OUI registry entry for 8C:E3:8E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Kioxia Corporation

MAC address prefix 8C:E3:8E is registered to Kioxia Corporation in the IEEE OUI registry. Any device whose MAC address begins with 8C:E3:8E has a network interface built by Kioxia Corporation. 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 8C:E3:8E:00:00:00 to 8C:E3:8E:FF:FF:FF.

OUI prefix: 8C:E3:8E
Hyphen form: 8C-E3-8E
MAC range: 8C:E3:8E:00:00:00 – 8C:E3:8E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Kioxia Corporation
Address: 1-21, Shibaura 3-chome Minato-ku Tokyo JP 108-0023
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 (3)

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 "Toshiba Memory Corporation"
archived source →
2020-03-21Renamed from "Toshiba Memory Corporation" to "Kioxia Corporation"
archived source →
2026-07-17Assigned to "Kioxia Corporation"

Nearby in the registry

The prefixes assigned immediately before and after 8C:E3:8E:

FAQ

Which company owns MAC address prefix 8C:E3:8E?: MAC address prefix 8C:E3:8E is registered to Kioxia Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 8C:E3:8E has a network interface built by Kioxia Corporation.
What is the OUI 8C:E3:8E?: 8C:E3:8E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Kioxia Corporation. It covers every address from 8C:E3:8E:00:00:00 to 8C:E3:8E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 8C-E3-8E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 8C:E3:8E:00:00:00 that is 8C:E3:8E — 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 Kioxia Corporation located?: Kioxia Corporation is listed at 1-21, Shibaura 3-chome Minato-ku Tokyo JP 108-0023 in the IEEE OUI registry entry for 8C:E3:8E. This is the address the organization registered with the IEEE, which may differ from its current operating address.