Which company owns MAC address prefix 68:69:CA?

MAC address prefix 68:69:CA is registered to Hitachi, Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 68:69:CA has a network interface built by Hitachi, Ltd..

What is the OUI 68:69:CA?

68:69:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hitachi, Ltd.. It covers every address from 68:69:CA:00:00:00 to 68:69:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 68-69-CA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 68:69:CA:00:00:00 that is 68:69:CA — 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 Hitachi, Ltd. located?

Hitachi, Ltd. is listed at 27-18, Minami Oi 6-chome, Shinagawa-ku Tokyo JP 140-8572 in the IEEE OUI registry entry for 68:69:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Hitachi, Ltd. own?

Hitachi, Ltd. holds 2 OUI prefixes in the IEEE registry, of which 68:69:CA is one. A device made by Hitachi, Ltd. could carry a MAC address from any of them.

Hitachi, Ltd.

MAC address prefix 68:69:CA is registered to Hitachi, Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 68:69:CA has a network interface built by Hitachi, 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 68:69:CA:00:00:00 to 68:69:CA:FF:FF:FF.

OUI prefix: 68:69:CA
Hyphen form: 68-69-CA
MAC range: 68:69:CA:00:00:00 – 68:69:CA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hitachi, Ltd.
Address: 27-18, Minami Oi 6-chome, Shinagawa-ku Tokyo JP 140-8572
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 Hitachi, Ltd.

Hitachi, Ltd. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

F8:48:97

Assignment history (2)

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

2020-03-21Assigned to "Hitachi, Ltd."
archived source →
2026-07-17Assigned to "Hitachi, Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 68:69:CA:

FAQ

Which company owns MAC address prefix 68:69:CA?: MAC address prefix 68:69:CA is registered to Hitachi, Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 68:69:CA has a network interface built by Hitachi, Ltd..
What is the OUI 68:69:CA?: 68:69:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hitachi, Ltd.. It covers every address from 68:69:CA:00:00:00 to 68:69:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 68-69-CA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 68:69:CA:00:00:00 that is 68:69:CA — 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 Hitachi, Ltd. located?: Hitachi, Ltd. is listed at 27-18, Minami Oi 6-chome, Shinagawa-ku Tokyo JP 140-8572 in the IEEE OUI registry entry for 68:69:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Hitachi, Ltd. own?: Hitachi, Ltd. holds 2 OUI prefixes in the IEEE registry, of which 68:69:CA is one. A device made by Hitachi, Ltd. could carry a MAC address from any of them.