Which company owns MAC address prefix B8:9C:13?

MAC address prefix B8:9C:13 is registered to Alps Alpine in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B8:9C:13 has a network interface built by Alps Alpine.

What is the OUI B8:9C:13?

B8:9C:13 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alps Alpine. It covers every address from B8:9C:13:00:00:00 to B8:9C:13:FF:FF:FF, or 16,777,216 addresses in total. It is also written B8-9C-13.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in B8:9C:13:00:00:00 that is B8:9C:13 — 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 Alps Alpine located?

Alps Alpine is listed at 20-1, Yoshima Industrial Park Iwaki Fukushima JP 970-1192 in the IEEE OUI registry entry for B8:9C:13. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Alps Alpine own?

Alps Alpine holds 4 OUI prefixes in the IEEE registry, of which B8:9C:13 is one. A device made by Alps Alpine could carry a MAC address from any of them.

Alps Alpine

MAC address prefix B8:9C:13 is registered to Alps Alpine in the IEEE OUI registry. Any device whose MAC address begins with B8:9C:13 has a network interface built by Alps Alpine. 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 B8:9C:13:00:00:00 to B8:9C:13:FF:FF:FF.

OUI prefix: B8:9C:13
Hyphen form: B8-9C-13
MAC range: B8:9C:13:00:00:00 – B8:9C:13:FF:FF:FF
Addresses in block: 16,777,216
Organization: Alps Alpine
Address: 20-1, Yoshima Industrial Park Iwaki Fukushima JP 970-1192
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 Alps Alpine

Alps Alpine holds 4 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (2)

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

2025-08-23Assigned to "Alps Alpine"
archived source →
2026-07-17Assigned to "Alps Alpine"

Nearby in the registry

The prefixes assigned immediately before and after B8:9C:13:

FAQ

Which company owns MAC address prefix B8:9C:13?: MAC address prefix B8:9C:13 is registered to Alps Alpine in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B8:9C:13 has a network interface built by Alps Alpine.
What is the OUI B8:9C:13?: B8:9C:13 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alps Alpine. It covers every address from B8:9C:13:00:00:00 to B8:9C:13:FF:FF:FF, or 16,777,216 addresses in total. It is also written B8-9C-13.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in B8:9C:13:00:00:00 that is B8:9C:13 — 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 Alps Alpine located?: Alps Alpine is listed at 20-1, Yoshima Industrial Park Iwaki Fukushima JP 970-1192 in the IEEE OUI registry entry for B8:9C:13. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Alps Alpine own?: Alps Alpine holds 4 OUI prefixes in the IEEE registry, of which B8:9C:13 is one. A device made by Alps Alpine could carry a MAC address from any of them.