Which company owns MAC address prefix 34:51:80?

MAC address prefix 34:51:80 is registered to TCL King Electrical Appliances (Huizhou) Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:51:80 has a network interface built by TCL King Electrical Appliances (Huizhou) Co., Ltd.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 34:51:80:00:00:00 that is 34:51:80 — 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 TCL King Electrical Appliances (Huizhou) Co., Ltd located?

TCL King Electrical Appliances (Huizhou) Co., Ltd is listed at 10F, TCL Multimedia Building, TCL International E City, No.1001 Zhongshanyuan Rd., Nanshan District Shenzhen Guangdong CN 518052 in the IEEE OUI registry entry for 34:51:80. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does TCL King Electrical Appliances (Huizhou) Co., Ltd own?

TCL King Electrical Appliances (Huizhou) Co., Ltd holds 5 OUI prefixes in the IEEE registry, of which 34:51:80 is one. A device made by TCL King Electrical Appliances (Huizhou) Co., Ltd could carry a MAC address from any of them.

TCL King Electrical Appliances (Huizhou) Co., Ltd

MAC address prefix 34:51:80 is registered to TCL King Electrical Appliances (Huizhou) Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with 34:51:80 has a network interface built by TCL King Electrical Appliances (Huizhou) 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 34:51:80:00:00:00 to 34:51:80:FF:FF:FF.

OUI prefix: 34:51:80
Hyphen form: 34-51-80
MAC range: 34:51:80:00:00:00 – 34:51:80:FF:FF:FF
Addresses in block: 16,777,216
Organization: TCL King Electrical Appliances (Huizhou) Co., Ltd
Address: 10F, TCL Multimedia Building, TCL International E City, No.1001 Zhongshanyuan Rd., Nanshan District Shenzhen Guangdong CN 518052
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 TCL King Electrical Appliances (Huizhou) Co., Ltd

TCL King Electrical Appliances (Huizhou) Co., Ltd holds 5 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.

2020-03-21Assigned to "TCL King Electrical Appliances (Huizhou) Co., Ltd"
archived source →
2026-07-17Assigned to "TCL King Electrical Appliances (Huizhou) Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 34:51:80:

FAQ

Which company owns MAC address prefix 34:51:80?: MAC address prefix 34:51:80 is registered to TCL King Electrical Appliances (Huizhou) Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:51:80 has a network interface built by TCL King Electrical Appliances (Huizhou) Co., Ltd.
What is the OUI 34:51:80?: 34:51:80 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to TCL King Electrical Appliances (Huizhou) Co., Ltd. It covers every address from 34:51:80:00:00:00 to 34:51:80:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-51-80.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 34:51:80:00:00:00 that is 34:51:80 — 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 TCL King Electrical Appliances (Huizhou) Co., Ltd located?: TCL King Electrical Appliances (Huizhou) Co., Ltd is listed at 10F, TCL Multimedia Building, TCL International E City, No.1001 Zhongshanyuan Rd., Nanshan District Shenzhen Guangdong CN 518052 in the IEEE OUI registry entry for 34:51:80. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does TCL King Electrical Appliances (Huizhou) Co., Ltd own?: TCL King Electrical Appliances (Huizhou) Co., Ltd holds 5 OUI prefixes in the IEEE registry, of which 34:51:80 is one. A device made by TCL King Electrical Appliances (Huizhou) Co., Ltd could carry a MAC address from any of them.