Which company owns MAC address prefix 94:3D:C9?

MAC address prefix 94:3D:C9 is registered to Asahi Net, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:3D:C9 has a network interface built by Asahi Net, Inc..

What is the OUI 94:3D:C9?

94:3D:C9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Asahi Net, Inc.. It covers every address from 94:3D:C9:00:00:00 to 94:3D:C9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-3D-C9.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 94:3D:C9:00:00:00 that is 94:3D:C9 — 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 Asahi Net, Inc. located?

Asahi Net, Inc. is listed at Ginza 4-12-15 Chuo-ku Tokyo JP 104-0061 in the IEEE OUI registry entry for 94:3D:C9. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Asahi Net, Inc.

MAC address prefix 94:3D:C9 is registered to Asahi Net, Inc. in the IEEE OUI registry. Any device whose MAC address begins with 94:3D:C9 has a network interface built by Asahi Net, Inc.. 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 94:3D:C9:00:00:00 to 94:3D:C9:FF:FF:FF.

OUI prefix: 94:3D:C9
Hyphen form: 94-3D-C9
MAC range: 94:3D:C9:00:00:00 – 94:3D:C9:FF:FF:FF
Addresses in block: 16,777,216
Organization: Asahi Net, Inc.
Address: Ginza 4-12-15 Chuo-ku Tokyo JP 104-0061
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 "Asahi Net, Inc."
archived source →
2026-07-17Assigned to "Asahi Net, Inc."

Nearby in the registry

The prefixes assigned immediately before and after 94:3D:C9:

FAQ

Which company owns MAC address prefix 94:3D:C9?: MAC address prefix 94:3D:C9 is registered to Asahi Net, Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:3D:C9 has a network interface built by Asahi Net, Inc..
What is the OUI 94:3D:C9?: 94:3D:C9 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Asahi Net, Inc.. It covers every address from 94:3D:C9:00:00:00 to 94:3D:C9:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-3D-C9.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 94:3D:C9:00:00:00 that is 94:3D:C9 — 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 Asahi Net, Inc. located?: Asahi Net, Inc. is listed at Ginza 4-12-15 Chuo-ku Tokyo JP 104-0061 in the IEEE OUI registry entry for 94:3D:C9. This is the address the organization registered with the IEEE, which may differ from its current operating address.