Which company owns MAC address prefix 50:B3:B4?

MAC address prefix 50:B3:B4 is registered to Shenzhen Furuilian Electronic Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:B3:B4 has a network interface built by Shenzhen Furuilian Electronic Co.,Ltd..

What is the OUI 50:B3:B4?

50:B3:B4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen Furuilian Electronic Co.,Ltd.. It covers every address from 50:B3:B4:00:00:00 to 50:B3:B4:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-B3-B4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 50:B3:B4:00:00:00 that is 50:B3:B4 — 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 Shenzhen Furuilian Electronic Co.,Ltd. located?

Shenzhen Furuilian Electronic Co.,Ltd. is listed at 3/F, No.5 Building Workshop, No.123, Shuitian Industrial Zone,Baoshi East Road, Shuitian Community, Shiyan Street, Bao'an District, Shenzhen CN 518000 in the IEEE OUI registry entry for 50:B3:B4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Shenzhen Furuilian Electronic Co.,Ltd.

MAC address prefix 50:B3:B4 is registered to Shenzhen Furuilian Electronic Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 50:B3:B4 has a network interface built by Shenzhen Furuilian Electronic 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 50:B3:B4:00:00:00 to 50:B3:B4:FF:FF:FF.

OUI prefix: 50:B3:B4
Hyphen form: 50-B3-B4
MAC range: 50:B3:B4:00:00:00 – 50:B3:B4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Shenzhen Furuilian Electronic Co.,Ltd.
Address: 3/F, No.5 Building Workshop, No.123, Shuitian Industrial Zone,Baoshi East Road, Shuitian Community, Shiyan Street, Bao'an District, Shenzhen CN 518000
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 (1)

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

2026-07-17Assigned to "Shenzhen Furuilian Electronic Co.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 50:B3:B4:

FAQ

Which company owns MAC address prefix 50:B3:B4?: MAC address prefix 50:B3:B4 is registered to Shenzhen Furuilian Electronic Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:B3:B4 has a network interface built by Shenzhen Furuilian Electronic Co.,Ltd..
What is the OUI 50:B3:B4?: 50:B3:B4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen Furuilian Electronic Co.,Ltd.. It covers every address from 50:B3:B4:00:00:00 to 50:B3:B4:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-B3-B4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 50:B3:B4:00:00:00 that is 50:B3:B4 — 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 Shenzhen Furuilian Electronic Co.,Ltd. located?: Shenzhen Furuilian Electronic Co.,Ltd. is listed at 3/F, No.5 Building Workshop, No.123, Shuitian Industrial Zone,Baoshi East Road, Shuitian Community, Shiyan Street, Bao'an District, Shenzhen CN 518000 in the IEEE OUI registry entry for 50:B3:B4. This is the address the organization registered with the IEEE, which may differ from its current operating address.