Which company owns MAC address prefix 50:31:23?

MAC address prefix 50:31:23 is registered to FN-LINK TECHNOLOGY Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:31:23 has a network interface built by FN-LINK TECHNOLOGY Ltd..

What is the OUI 50:31:23?

50:31:23 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to FN-LINK TECHNOLOGY Ltd.. It covers every address from 50:31:23:00:00:00 to 50:31:23:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-31-23.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 50:31:23:00:00:00 that is 50:31:23 — 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 FN-LINK TECHNOLOGY Ltd. located?

FN-LINK TECHNOLOGY Ltd. is listed at No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan,China Changsha Hunan CN 410329 in the IEEE OUI registry entry for 50:31:23. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does FN-LINK TECHNOLOGY Ltd. own?

FN-LINK TECHNOLOGY Ltd. holds 20 OUI prefixes in the IEEE registry, of which 50:31:23 is one. A device made by FN-LINK TECHNOLOGY Ltd. could carry a MAC address from any of them.

FN-LINK TECHNOLOGY Ltd.

MAC address prefix 50:31:23 is registered to FN-LINK TECHNOLOGY Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 50:31:23 has a network interface built by FN-LINK TECHNOLOGY 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 50:31:23:00:00:00 to 50:31:23:FF:FF:FF.

OUI prefix: 50:31:23
Hyphen form: 50-31-23
MAC range: 50:31:23:00:00:00 – 50:31:23:FF:FF:FF
Addresses in block: 16,777,216
Organization: FN-LINK TECHNOLOGY Ltd.
Address: No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan,China Changsha Hunan CN 410329
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 FN-LINK TECHNOLOGY Ltd.

FN-LINK TECHNOLOGY Ltd. holds 20 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.

2026-01-08Assigned to "FN-LINK TECHNOLOGY Ltd."
archived source →
2026-07-17Assigned to "FN-LINK TECHNOLOGY Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 50:31:23:

FAQ

Which company owns MAC address prefix 50:31:23?: MAC address prefix 50:31:23 is registered to FN-LINK TECHNOLOGY Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 50:31:23 has a network interface built by FN-LINK TECHNOLOGY Ltd..
What is the OUI 50:31:23?: 50:31:23 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to FN-LINK TECHNOLOGY Ltd.. It covers every address from 50:31:23:00:00:00 to 50:31:23:FF:FF:FF, or 16,777,216 addresses in total. It is also written 50-31-23.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 50:31:23:00:00:00 that is 50:31:23 — 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 FN-LINK TECHNOLOGY Ltd. located?: FN-LINK TECHNOLOGY Ltd. is listed at No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan,China Changsha Hunan CN 410329 in the IEEE OUI registry entry for 50:31:23. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does FN-LINK TECHNOLOGY Ltd. own?: FN-LINK TECHNOLOGY Ltd. holds 20 OUI prefixes in the IEEE registry, of which 50:31:23 is one. A device made by FN-LINK TECHNOLOGY Ltd. could carry a MAC address from any of them.