Which company owns MAC address prefix B8:DC:87?

MAC address prefix B8:DC:87 is registered to IAI Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B8:DC:87 has a network interface built by IAI Corporation.

What is the OUI B8:DC:87?

B8:DC:87 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IAI Corporation. It covers every address from B8:DC:87:00:00:00 to B8:DC:87:FF:FF:FF, or 16,777,216 addresses in total. It is also written B8-DC-87.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in B8:DC:87:00:00:00 that is B8:DC:87 — 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 IAI Corporation located?

IAI Corporation is listed at 577-1 Obane Shizuoka-City Shizuoka JP 424-0103 in the IEEE OUI registry entry for B8:DC:87. This is the address the organization registered with the IEEE, which may differ from its current operating address.

IAI Corporation

MAC address prefix B8:DC:87 is registered to IAI Corporation in the IEEE OUI registry. Any device whose MAC address begins with B8:DC:87 has a network interface built by IAI Corporation. 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:DC:87:00:00:00 to B8:DC:87:FF:FF:FF.

OUI prefix: B8:DC:87
Hyphen form: B8-DC-87
MAC range: B8:DC:87:00:00:00 – B8:DC:87:FF:FF:FF
Addresses in block: 16,777,216
Organization: IAI Corporation
Address: 577-1 Obane Shizuoka-City Shizuoka JP 424-0103
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 "IAI Corporation"
archived source →
2026-07-17Assigned to "IAI Corporation"

Nearby in the registry

The prefixes assigned immediately before and after B8:DC:87:

FAQ

Which company owns MAC address prefix B8:DC:87?: MAC address prefix B8:DC:87 is registered to IAI Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B8:DC:87 has a network interface built by IAI Corporation.
What is the OUI B8:DC:87?: B8:DC:87 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IAI Corporation. It covers every address from B8:DC:87:00:00:00 to B8:DC:87:FF:FF:FF, or 16,777,216 addresses in total. It is also written B8-DC-87.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in B8:DC:87:00:00:00 that is B8:DC:87 — 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 IAI Corporation located?: IAI Corporation is listed at 577-1 Obane Shizuoka-City Shizuoka JP 424-0103 in the IEEE OUI registry entry for B8:DC:87. This is the address the organization registered with the IEEE, which may differ from its current operating address.