Which company owns MAC address prefix 90:CF:6F?

MAC address prefix 90:CF:6F is registered to Dlogixs Co Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 90:CF:6F has a network interface built by Dlogixs Co Ltd.

What is the OUI 90:CF:6F?

90:CF:6F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Dlogixs Co Ltd. It covers every address from 90:CF:6F:00:00:00 to 90:CF:6F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 90-CF-6F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 90:CF:6F:00:00:00 that is 90:CF:6F — 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 Dlogixs Co Ltd located?

Dlogixs Co Ltd is listed at DLogixs Bldg, #351-1, Anyang-Dong Anyang-si Gyeonggi-do KR 430-010 in the IEEE OUI registry entry for 90:CF:6F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Dlogixs Co Ltd

MAC address prefix 90:CF:6F is registered to Dlogixs Co Ltd in the IEEE OUI registry. Any device whose MAC address begins with 90:CF:6F has a network interface built by Dlogixs 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 90:CF:6F:00:00:00 to 90:CF:6F:FF:FF:FF.

OUI prefix: 90:CF:6F
Hyphen form: 90-CF-6F
MAC range: 90:CF:6F:00:00:00 – 90:CF:6F:FF:FF:FF
Addresses in block: 16,777,216
Organization: Dlogixs Co Ltd
Address: DLogixs Bldg, #351-1, Anyang-Dong Anyang-si Gyeonggi-do KR 430-010
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 "Dlogixs Co Ltd"
archived source →
2026-07-17Assigned to "Dlogixs Co Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 90:CF:6F:

FAQ

Which company owns MAC address prefix 90:CF:6F?: MAC address prefix 90:CF:6F is registered to Dlogixs Co Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 90:CF:6F has a network interface built by Dlogixs Co Ltd.
What is the OUI 90:CF:6F?: 90:CF:6F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Dlogixs Co Ltd. It covers every address from 90:CF:6F:00:00:00 to 90:CF:6F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 90-CF-6F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 90:CF:6F:00:00:00 that is 90:CF:6F — 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 Dlogixs Co Ltd located?: Dlogixs Co Ltd is listed at DLogixs Bldg, #351-1, Anyang-Dong Anyang-si Gyeonggi-do KR 430-010 in the IEEE OUI registry entry for 90:CF:6F. This is the address the organization registered with the IEEE, which may differ from its current operating address.