Which company owns MAC address prefix DC:74:CE?

MAC address prefix DC:74:CE is registered to ITOCHU Techno-Solutions Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:74:CE has a network interface built by ITOCHU Techno-Solutions Corporation.

What is the OUI DC:74:CE?

DC:74:CE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ITOCHU Techno-Solutions Corporation. It covers every address from DC:74:CE:00:00:00 to DC:74:CE:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-74-CE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:74:CE:00:00:00 that is DC:74:CE — 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 ITOCHU Techno-Solutions Corporation located?

ITOCHU Techno-Solutions Corporation is listed at Kamiyacho Trust Tower, 4-1-1, Toranomon, Minato-ku, Tokyo Tokyo JP 105-6950 in the IEEE OUI registry entry for DC:74:CE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

ITOCHU Techno-Solutions Corporation

MAC address prefix DC:74:CE is registered to ITOCHU Techno-Solutions Corporation in the IEEE OUI registry. Any device whose MAC address begins with DC:74:CE has a network interface built by ITOCHU Techno-Solutions 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 DC:74:CE:00:00:00 to DC:74:CE:FF:FF:FF.

OUI prefix: DC:74:CE
Hyphen form: DC-74-CE
MAC range: DC:74:CE:00:00:00 – DC:74:CE:FF:FF:FF
Addresses in block: 16,777,216
Organization: ITOCHU Techno-Solutions Corporation
Address: Kamiyacho Trust Tower, 4-1-1, Toranomon, Minato-ku, Tokyo Tokyo JP 105-6950
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.

2026-01-08Assigned to "ITOCHU Techno-Solutions Corporation"
archived source →
2026-07-17Assigned to "ITOCHU Techno-Solutions Corporation"

Nearby in the registry

The prefixes assigned immediately before and after DC:74:CE:

FAQ

Which company owns MAC address prefix DC:74:CE?: MAC address prefix DC:74:CE is registered to ITOCHU Techno-Solutions Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:74:CE has a network interface built by ITOCHU Techno-Solutions Corporation.
What is the OUI DC:74:CE?: DC:74:CE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ITOCHU Techno-Solutions Corporation. It covers every address from DC:74:CE:00:00:00 to DC:74:CE:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-74-CE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:74:CE:00:00:00 that is DC:74:CE — 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 ITOCHU Techno-Solutions Corporation located?: ITOCHU Techno-Solutions Corporation is listed at Kamiyacho Trust Tower, 4-1-1, Toranomon, Minato-ku, Tokyo Tokyo JP 105-6950 in the IEEE OUI registry entry for DC:74:CE. This is the address the organization registered with the IEEE, which may differ from its current operating address.