Which company owns MAC address prefix 6C:D6:30?

MAC address prefix 6C:D6:30 is registered to Rootous System Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:D6:30 has a network interface built by Rootous System Co.,Ltd.

What is the OUI 6C:D6:30?

6C:D6:30 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Rootous System Co.,Ltd. It covers every address from 6C:D6:30:00:00:00 to 6C:D6:30:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-D6-30.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 6C:D6:30:00:00:00 that is 6C:D6:30 — 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 Rootous System Co.,Ltd located?

Rootous System Co.,Ltd is listed at KT B/D 4Floor, 100, Ahopgeori-gil Yeonseo-myeon Sejong-si KR 30049 in the IEEE OUI registry entry for 6C:D6:30. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Rootous System Co.,Ltd

MAC address prefix 6C:D6:30 is registered to Rootous System Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with 6C:D6:30 has a network interface built by Rootous System Co.,Ltd. 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 6C:D6:30:00:00:00 to 6C:D6:30:FF:FF:FF.

OUI prefix: 6C:D6:30
Hyphen form: 6C-D6-30
MAC range: 6C:D6:30:00:00:00 – 6C:D6:30:FF:FF:FF
Addresses in block: 16,777,216
Organization: Rootous System Co.,Ltd
Address: KT B/D 4Floor, 100, Ahopgeori-gil Yeonseo-myeon Sejong-si KR 30049
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.

2021-02-25Assigned to "Rootous System Co.,Ltd"
archived source →
2026-07-17Assigned to "Rootous System Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 6C:D6:30:

FAQ

Which company owns MAC address prefix 6C:D6:30?: MAC address prefix 6C:D6:30 is registered to Rootous System Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 6C:D6:30 has a network interface built by Rootous System Co.,Ltd.
What is the OUI 6C:D6:30?: 6C:D6:30 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Rootous System Co.,Ltd. It covers every address from 6C:D6:30:00:00:00 to 6C:D6:30:FF:FF:FF, or 16,777,216 addresses in total. It is also written 6C-D6-30.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 6C:D6:30:00:00:00 that is 6C:D6:30 — 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 Rootous System Co.,Ltd located?: Rootous System Co.,Ltd is listed at KT B/D 4Floor, 100, Ahopgeori-gil Yeonseo-myeon Sejong-si KR 30049 in the IEEE OUI registry entry for 6C:D6:30. This is the address the organization registered with the IEEE, which may differ from its current operating address.