Which company owns MAC address prefix 68:78:48?

MAC address prefix 68:78:48 is registered to WESTUNITIS CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 68:78:48 has a network interface built by WESTUNITIS CO., LTD..

What is the OUI 68:78:48?

68:78:48 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to WESTUNITIS CO., LTD.. It covers every address from 68:78:48:00:00:00 to 68:78:48:FF:FF:FF, or 16,777,216 addresses in total. It is also written 68-78-48.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 68:78:48:00:00:00 that is 68:78:48 — 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 WESTUNITIS CO., LTD. located?

WESTUNITIS CO., LTD. is listed at 29F Grand Front Osaka Tower-A, 4-20, Ofukacho, Osaka Kita-ku JP 530-0011 in the IEEE OUI registry entry for 68:78:48. This is the address the organization registered with the IEEE, which may differ from its current operating address.

WESTUNITIS CO., LTD.

MAC address prefix 68:78:48 is registered to WESTUNITIS CO., LTD. in the IEEE OUI registry. Any device whose MAC address begins with 68:78:48 has a network interface built by WESTUNITIS CO., 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 68:78:48:00:00:00 to 68:78:48:FF:FF:FF.

OUI prefix: 68:78:48
Hyphen form: 68-78-48
MAC range: 68:78:48:00:00:00 – 68:78:48:FF:FF:FF
Addresses in block: 16,777,216
Organization: WESTUNITIS CO., LTD.
Address: 29F Grand Front Osaka Tower-A, 4-20, Ofukacho, Osaka Kita-ku JP 530-0011
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.

2016-07-29Assigned to "Westunitis Co., Ltd."
archived source →
2020-11-28Renamed from "Westunitis Co., Ltd." to "WESTUNITIS CO., LTD."
archived source →
2026-07-17Assigned to "WESTUNITIS CO., LTD."

Nearby in the registry

The prefixes assigned immediately before and after 68:78:48:

FAQ

Which company owns MAC address prefix 68:78:48?: MAC address prefix 68:78:48 is registered to WESTUNITIS CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 68:78:48 has a network interface built by WESTUNITIS CO., LTD..
What is the OUI 68:78:48?: 68:78:48 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to WESTUNITIS CO., LTD.. It covers every address from 68:78:48:00:00:00 to 68:78:48:FF:FF:FF, or 16,777,216 addresses in total. It is also written 68-78-48.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 68:78:48:00:00:00 that is 68:78:48 — 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 WESTUNITIS CO., LTD. located?: WESTUNITIS CO., LTD. is listed at 29F Grand Front Osaka Tower-A, 4-20, Ofukacho, Osaka Kita-ku JP 530-0011 in the IEEE OUI registry entry for 68:78:48. This is the address the organization registered with the IEEE, which may differ from its current operating address.