Which company owns MAC address prefix 24:78:23?

MAC address prefix 24:78:23 is registered to Panasonic Entertainment & Communication Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 24:78:23 has a network interface built by Panasonic Entertainment & Communication Co., Ltd..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 24:78:23:00:00:00 that is 24:78:23 — 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.

Panasonic Entertainment & Communication Co., Ltd.

MAC address prefix 24:78:23 is registered to Panasonic Entertainment & Communication Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 24:78:23 has a network interface built by Panasonic Entertainment & Communication 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 24:78:23:00:00:00 to 24:78:23:FF:FF:FF.

OUI prefix: 24:78:23
Hyphen form: 24-78-23
MAC range: 24:78:23:00:00:00 – 24:78:23:FF:FF:FF
Addresses in block: 16,777,216
Organization: Panasonic Entertainment & Communication Co., Ltd.
Address: 3-1-1 Yagumo-naka-machi Moriguchi Osaka JP 570-8501
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.

2023-07-11Assigned to "Panasonic Entertainment & Communication Co., Ltd."
archived source →
2026-07-17Assigned to "Panasonic Entertainment & Communication Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 24:78:23:

FAQ

Which company owns MAC address prefix 24:78:23?: MAC address prefix 24:78:23 is registered to Panasonic Entertainment & Communication Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 24:78:23 has a network interface built by Panasonic Entertainment & Communication Co., Ltd..
What is the OUI 24:78:23?: 24:78:23 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Panasonic Entertainment & Communication Co., Ltd.. It covers every address from 24:78:23:00:00:00 to 24:78:23:FF:FF:FF, or 16,777,216 addresses in total. It is also written 24-78-23.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 24:78:23:00:00:00 that is 24:78:23 — 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 Panasonic Entertainment & Communication Co., Ltd. located?: Panasonic Entertainment & Communication Co., Ltd. is listed at 3-1-1 Yagumo-naka-machi Moriguchi Osaka JP 570-8501 in the IEEE OUI registry entry for 24:78:23. This is the address the organization registered with the IEEE, which may differ from its current operating address.