Which company owns MAC address prefix F8:C3:72?

MAC address prefix F8:C3:72 is registered to TSUZUKI DENKI in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F8:C3:72 has a network interface built by TSUZUKI DENKI.

What is the OUI F8:C3:72?

F8:C3:72 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to TSUZUKI DENKI. It covers every address from F8:C3:72:00:00:00 to F8:C3:72:FF:FF:FF, or 16,777,216 addresses in total. It is also written F8-C3-72.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F8:C3:72:00:00:00 that is F8:C3:72 — 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 TSUZUKI DENKI located?

TSUZUKI DENKI is listed at shinbashi 6-19-15 mainato-ku tokyo-to JP 105-8665 in the IEEE OUI registry entry for F8:C3:72. This is the address the organization registered with the IEEE, which may differ from its current operating address.

TSUZUKI DENKI

MAC address prefix F8:C3:72 is registered to TSUZUKI DENKI in the IEEE OUI registry. Any device whose MAC address begins with F8:C3:72 has a network interface built by TSUZUKI DENKI. 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 F8:C3:72:00:00:00 to F8:C3:72:FF:FF:FF.

OUI prefix: F8:C3:72
Hyphen form: F8-C3-72
MAC range: F8:C3:72:00:00:00 – F8:C3:72:FF:FF:FF
Addresses in block: 16,777,216
Organization: TSUZUKI DENKI
Address: shinbashi 6-19-15 mainato-ku tokyo-to JP 105-8665
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.

2016-07-29Assigned to "TSUZUKI DENKI"
archived source →
2026-07-17Assigned to "TSUZUKI DENKI"

Nearby in the registry

The prefixes assigned immediately before and after F8:C3:72:

FAQ

Which company owns MAC address prefix F8:C3:72?: MAC address prefix F8:C3:72 is registered to TSUZUKI DENKI in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F8:C3:72 has a network interface built by TSUZUKI DENKI.
What is the OUI F8:C3:72?: F8:C3:72 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to TSUZUKI DENKI. It covers every address from F8:C3:72:00:00:00 to F8:C3:72:FF:FF:FF, or 16,777,216 addresses in total. It is also written F8-C3-72.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F8:C3:72:00:00:00 that is F8:C3:72 — 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 TSUZUKI DENKI located?: TSUZUKI DENKI is listed at shinbashi 6-19-15 mainato-ku tokyo-to JP 105-8665 in the IEEE OUI registry entry for F8:C3:72. This is the address the organization registered with the IEEE, which may differ from its current operating address.