Which company owns MAC address prefix C8:F6:8D?

MAC address prefix C8:F6:8D is registered to S.E.TECHNOLOGIES LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:F6:8D has a network interface built by S.E.TECHNOLOGIES LIMITED.

What is the OUI C8:F6:8D?

C8:F6:8D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to S.E.TECHNOLOGIES LIMITED. It covers every address from C8:F6:8D:00:00:00 to C8:F6:8D:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-F6-8D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:F6:8D:00:00:00 that is C8:F6:8D — 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 S.E.TECHNOLOGIES LIMITED located?

S.E.TECHNOLOGIES LIMITED is listed at #303 Shiodome building Level3 Minato-ku Tokyo JP 105-0022 in the IEEE OUI registry entry for C8:F6:8D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

S.E.TECHNOLOGIES LIMITED

MAC address prefix C8:F6:8D is registered to S.E.TECHNOLOGIES LIMITED in the IEEE OUI registry. Any device whose MAC address begins with C8:F6:8D has a network interface built by S.E.TECHNOLOGIES LIMITED. 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 C8:F6:8D:00:00:00 to C8:F6:8D:FF:FF:FF.

OUI prefix: C8:F6:8D
Hyphen form: C8-F6-8D
MAC range: C8:F6:8D:00:00:00 – C8:F6:8D:FF:FF:FF
Addresses in block: 16,777,216
Organization: S.E.TECHNOLOGIES LIMITED
Address: #303 Shiodome building Level3 Minato-ku Tokyo JP 105-0022
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 "S.E.TECHNOLOGIES LIMITED"
archived source →
2026-07-17Assigned to "S.E.TECHNOLOGIES LIMITED"

Nearby in the registry

The prefixes assigned immediately before and after C8:F6:8D:

FAQ

Which company owns MAC address prefix C8:F6:8D?: MAC address prefix C8:F6:8D is registered to S.E.TECHNOLOGIES LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:F6:8D has a network interface built by S.E.TECHNOLOGIES LIMITED.
What is the OUI C8:F6:8D?: C8:F6:8D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to S.E.TECHNOLOGIES LIMITED. It covers every address from C8:F6:8D:00:00:00 to C8:F6:8D:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-F6-8D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:F6:8D:00:00:00 that is C8:F6:8D — 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 S.E.TECHNOLOGIES LIMITED located?: S.E.TECHNOLOGIES LIMITED is listed at #303 Shiodome building Level3 Minato-ku Tokyo JP 105-0022 in the IEEE OUI registry entry for C8:F6:8D. This is the address the organization registered with the IEEE, which may differ from its current operating address.