Which company owns MAC address prefix 04:47:CA?

MAC address prefix 04:47:CA is registered to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:47:CA has a network interface built by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI.

What is the OUI 04:47:CA?

04:47:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI. It covers every address from 04:47:CA:00:00:00 to 04:47:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-47-CA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:47:CA:00:00:00 that is 04:47:CA — 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 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI located?

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI is listed at West Jinji Rd, Qianshan Zhuhai Guangdong CN 519070 in the IEEE OUI registry entry for 04:47:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI own?

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI holds 6 OUI prefixes in the IEEE registry, of which 04:47:CA is one. A device made by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI could carry a MAC address from any of them.

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

MAC address prefix 04:47:CA is registered to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI in the IEEE OUI registry. Any device whose MAC address begins with 04:47:CA has a network interface built by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI. 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 04:47:CA:00:00:00 to 04:47:CA:FF:FF:FF.

OUI prefix: 04:47:CA
Hyphen form: 04-47-CA
MAC range: 04:47:CA:00:00:00 – 04:47:CA:FF:FF:FF
Addresses in block: 16,777,216
Organization: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Address: West Jinji Rd, Qianshan Zhuhai Guangdong CN 519070
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.

Other prefixes from GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI holds 6 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2024-11-20Assigned to "GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI"
archived source →
2026-07-17Assigned to "GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI"

Nearby in the registry

The prefixes assigned immediately before and after 04:47:CA:

FAQ

Which company owns MAC address prefix 04:47:CA?: MAC address prefix 04:47:CA is registered to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:47:CA has a network interface built by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI.
What is the OUI 04:47:CA?: 04:47:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI. It covers every address from 04:47:CA:00:00:00 to 04:47:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-47-CA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:47:CA:00:00:00 that is 04:47:CA — 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 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI located?: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI is listed at West Jinji Rd, Qianshan Zhuhai Guangdong CN 519070 in the IEEE OUI registry entry for 04:47:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI own?: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI holds 6 OUI prefixes in the IEEE registry, of which 04:47:CA is one. A device made by GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI could carry a MAC address from any of them.