Which company owns MAC address prefix B0:12:66?

MAC address prefix B0:12:66 is registered to Futaba-Kikaku in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B0:12:66 has a network interface built by Futaba-Kikaku.

What is the OUI B0:12:66?

B0:12:66 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Futaba-Kikaku. It covers every address from B0:12:66:00:00:00 to B0:12:66:FF:FF:FF, or 16,777,216 addresses in total. It is also written B0-12-66.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in B0:12:66:00:00:00 that is B0:12:66 — 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 Futaba-Kikaku located?

Futaba-Kikaku is listed at 2-17-20-302 Yanaka Taito-ku Tokyo JP 110-0001 in the IEEE OUI registry entry for B0:12:66. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Futaba-Kikaku

MAC address prefix B0:12:66 is registered to Futaba-Kikaku in the IEEE OUI registry. Any device whose MAC address begins with B0:12:66 has a network interface built by Futaba-Kikaku. 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 B0:12:66:00:00:00 to B0:12:66:FF:FF:FF.

OUI prefix: B0:12:66
Hyphen form: B0-12-66
MAC range: B0:12:66:00:00:00 – B0:12:66:FF:FF:FF
Addresses in block: 16,777,216
Organization: Futaba-Kikaku
Address: 2-17-20-302 Yanaka Taito-ku Tokyo JP 110-0001
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 "Futaba-Kikaku"
archived source →
2026-07-17Assigned to "Futaba-Kikaku"

Nearby in the registry

The prefixes assigned immediately before and after B0:12:66:

FAQ

Which company owns MAC address prefix B0:12:66?: MAC address prefix B0:12:66 is registered to Futaba-Kikaku in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B0:12:66 has a network interface built by Futaba-Kikaku.
What is the OUI B0:12:66?: B0:12:66 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Futaba-Kikaku. It covers every address from B0:12:66:00:00:00 to B0:12:66:FF:FF:FF, or 16,777,216 addresses in total. It is also written B0-12-66.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in B0:12:66:00:00:00 that is B0:12:66 — 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 Futaba-Kikaku located?: Futaba-Kikaku is listed at 2-17-20-302 Yanaka Taito-ku Tokyo JP 110-0001 in the IEEE OUI registry entry for B0:12:66. This is the address the organization registered with the IEEE, which may differ from its current operating address.