Which company owns MAC address prefix 04:CF:25?

MAC address prefix 04:CF:25 is registered to MANYCOLORS, INC. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:CF:25 has a network interface built by MANYCOLORS, INC..

What is the OUI 04:CF:25?

04:CF:25 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MANYCOLORS, INC.. It covers every address from 04:CF:25:00:00:00 to 04:CF:25:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-CF-25.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:CF:25:00:00:00 that is 04:CF:25 — 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 MANYCOLORS, INC. located?

MANYCOLORS, INC. is listed at 3F, 4-1-18 Jinnoharu Kitakyushu Fukuoka JP 8070821 in the IEEE OUI registry entry for 04:CF:25. This is the address the organization registered with the IEEE, which may differ from its current operating address.

MANYCOLORS, INC.

MAC address prefix 04:CF:25 is registered to MANYCOLORS, INC. in the IEEE OUI registry. Any device whose MAC address begins with 04:CF:25 has a network interface built by MANYCOLORS, 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 04:CF:25:00:00:00 to 04:CF:25:FF:FF:FF.

OUI prefix: 04:CF:25
Hyphen form: 04-CF-25
MAC range: 04:CF:25:00:00:00 – 04:CF:25:FF:FF:FF
Addresses in block: 16,777,216
Organization: MANYCOLORS, INC.
Address: 3F, 4-1-18 Jinnoharu Kitakyushu Fukuoka JP 8070821
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 "MANYCOLORS, INC."
archived source →
2026-07-17Assigned to "MANYCOLORS, INC."

Nearby in the registry

The prefixes assigned immediately before and after 04:CF:25:

FAQ

Which company owns MAC address prefix 04:CF:25?: MAC address prefix 04:CF:25 is registered to MANYCOLORS, INC. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:CF:25 has a network interface built by MANYCOLORS, INC..
What is the OUI 04:CF:25?: 04:CF:25 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MANYCOLORS, INC.. It covers every address from 04:CF:25:00:00:00 to 04:CF:25:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-CF-25.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:CF:25:00:00:00 that is 04:CF:25 — 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 MANYCOLORS, INC. located?: MANYCOLORS, INC. is listed at 3F, 4-1-18 Jinnoharu Kitakyushu Fukuoka JP 8070821 in the IEEE OUI registry entry for 04:CF:25. This is the address the organization registered with the IEEE, which may differ from its current operating address.