Which company owns MAC address prefix 34:FE:9E?

MAC address prefix 34:FE:9E is registered to Fujitsu Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:FE:9E has a network interface built by Fujitsu Limited.

What is the OUI 34:FE:9E?

34:FE:9E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Fujitsu Limited. It covers every address from 34:FE:9E:00:00:00 to 34:FE:9E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-FE-9E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 34:FE:9E:00:00:00 that is 34:FE: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 Fujitsu Limited located?

Fujitsu Limited is listed at 4-1-1 Kamikodanaka, Nakahara-ku Kawasaki-shi Kanagawa JP 211-8588 in the IEEE OUI registry entry for 34:FE:9E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Fujitsu Limited own?

Fujitsu Limited holds 3 OUI prefixes in the IEEE registry, of which 34:FE:9E is one. A device made by Fujitsu Limited could carry a MAC address from any of them.

Fujitsu Limited

MAC address prefix 34:FE:9E is registered to Fujitsu Limited in the IEEE OUI registry. Any device whose MAC address begins with 34:FE:9E has a network interface built by Fujitsu 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 34:FE:9E:00:00:00 to 34:FE:9E:FF:FF:FF.

OUI prefix: 34:FE:9E
Hyphen form: 34-FE-9E
MAC range: 34:FE:9E:00:00:00 – 34:FE:9E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Fujitsu Limited
Address: 4-1-1 Kamikodanaka, Nakahara-ku Kawasaki-shi Kanagawa JP 211-8588
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.

Other prefixes from Fujitsu Limited

Fujitsu Limited holds 3 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (1)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-07-17Assigned to "Fujitsu Limited"

Nearby in the registry

The prefixes assigned immediately before and after 34:FE:9E:

FAQ

Which company owns MAC address prefix 34:FE:9E?: MAC address prefix 34:FE:9E is registered to Fujitsu Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:FE:9E has a network interface built by Fujitsu Limited.
What is the OUI 34:FE:9E?: 34:FE:9E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Fujitsu Limited. It covers every address from 34:FE:9E:00:00:00 to 34:FE:9E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-FE-9E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 34:FE:9E:00:00:00 that is 34:FE: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 Fujitsu Limited located?: Fujitsu Limited is listed at 4-1-1 Kamikodanaka, Nakahara-ku Kawasaki-shi Kanagawa JP 211-8588 in the IEEE OUI registry entry for 34:FE:9E. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Fujitsu Limited own?: Fujitsu Limited holds 3 OUI prefixes in the IEEE registry, of which 34:FE:9E is one. A device made by Fujitsu Limited could carry a MAC address from any of them.