Which company owns MAC address prefix F8:1B:04?

MAC address prefix F8:1B:04 is registered to Zhong Shan City Richsound Electronic Industrial Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F8:1B:04 has a network interface built by Zhong Shan City Richsound Electronic Industrial Ltd.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F8:1B:04:00:00:00 that is F8:1B:04 — 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.

Zhong Shan City Richsound Electronic Industrial Ltd

MAC address prefix F8:1B:04 is registered to Zhong Shan City Richsound Electronic Industrial Ltd in the IEEE OUI registry. Any device whose MAC address begins with F8:1B:04 has a network interface built by Zhong Shan City Richsound Electronic Industrial 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 F8:1B:04:00:00:00 to F8:1B:04:FF:FF:FF.

OUI prefix: F8:1B:04
Hyphen form: F8-1B-04
MAC range: F8:1B:04:00:00:00 – F8:1B:04:FF:FF:FF
Addresses in block: 16,777,216
Organization: Zhong Shan City Richsound Electronic Industrial Ltd
Address: Qunle Industrial Area,East ShaGang Road,GangKou ZhongShan,GuangDong,China ZhongShan GuangDong CN 528400
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.

2020-08-05Assigned to "Zhong Shan City Richsound Electronic Industrial Ltd"
archived source →
2026-07-17Assigned to "Zhong Shan City Richsound Electronic Industrial Ltd"

Nearby in the registry

The prefixes assigned immediately before and after F8:1B:04:

FAQ

Which company owns MAC address prefix F8:1B:04?: MAC address prefix F8:1B:04 is registered to Zhong Shan City Richsound Electronic Industrial Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F8:1B:04 has a network interface built by Zhong Shan City Richsound Electronic Industrial Ltd.
What is the OUI F8:1B:04?: F8:1B:04 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zhong Shan City Richsound Electronic Industrial Ltd. It covers every address from F8:1B:04:00:00:00 to F8:1B:04:FF:FF:FF, or 16,777,216 addresses in total. It is also written F8-1B-04.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F8:1B:04:00:00:00 that is F8:1B:04 — 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 Zhong Shan City Richsound Electronic Industrial Ltd located?: Zhong Shan City Richsound Electronic Industrial Ltd is listed at Qunle Industrial Area,East ShaGang Road,GangKou ZhongShan,GuangDong,China ZhongShan GuangDong CN 528400 in the IEEE OUI registry entry for F8:1B:04. This is the address the organization registered with the IEEE, which may differ from its current operating address.