Which company owns MAC address prefix 84:9D:64?

MAC address prefix 84:9D:64 is registered to SMC Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:9D:64 has a network interface built by SMC Corporation.

What is the OUI 84:9D:64?

84:9D:64 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SMC Corporation. It covers every address from 84:9D:64:00:00:00 to 84:9D:64:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-9D-64.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 84:9D:64:00:00:00 that is 84:9D:64 — 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 SMC Corporation located?

SMC Corporation is listed at 4-2-2, Kinunodai Tsukuba Mirai-shi Ibaraki-ken JP 300-2493 in the IEEE OUI registry entry for 84:9D:64. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does SMC Corporation own?

SMC Corporation holds 2 OUI prefixes in the IEEE registry, of which 84:9D:64 is one. A device made by SMC Corporation could carry a MAC address from any of them.

SMC Corporation

MAC address prefix 84:9D:64 is registered to SMC Corporation in the IEEE OUI registry. Any device whose MAC address begins with 84:9D:64 has a network interface built by SMC 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 84:9D:64:00:00:00 to 84:9D:64:FF:FF:FF.

OUI prefix: 84:9D:64
Hyphen form: 84-9D-64
MAC range: 84:9D:64:00:00:00 – 84:9D:64:FF:FF:FF
Addresses in block: 16,777,216
Organization: SMC Corporation
Address: 4-2-2, Kinunodai Tsukuba Mirai-shi Ibaraki-ken JP 300-2493
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 SMC Corporation

SMC Corporation holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:23:C6

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 "SMC Corporation"
archived source →
2026-07-17Assigned to "SMC Corporation"

Nearby in the registry

The prefixes assigned immediately before and after 84:9D:64:

FAQ

Which company owns MAC address prefix 84:9D:64?: MAC address prefix 84:9D:64 is registered to SMC Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:9D:64 has a network interface built by SMC Corporation.
What is the OUI 84:9D:64?: 84:9D:64 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SMC Corporation. It covers every address from 84:9D:64:00:00:00 to 84:9D:64:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-9D-64.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 84:9D:64:00:00:00 that is 84:9D:64 — 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 SMC Corporation located?: SMC Corporation is listed at 4-2-2, Kinunodai Tsukuba Mirai-shi Ibaraki-ken JP 300-2493 in the IEEE OUI registry entry for 84:9D:64. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does SMC Corporation own?: SMC Corporation holds 2 OUI prefixes in the IEEE registry, of which 84:9D:64 is one. A device made by SMC Corporation could carry a MAC address from any of them.