Which company owns MAC address prefix 20:84:F5?

MAC address prefix 20:84:F5 is registered to Yufei Innovation Software(Shenzhen) Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:84:F5 has a network interface built by Yufei Innovation Software(Shenzhen) Co., Ltd..

What is the OUI 20:84:F5?

20:84:F5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Yufei Innovation Software(Shenzhen) Co., Ltd.. It covers every address from 20:84:F5:00:00:00 to 20:84:F5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-84-F5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 20:84:F5:00:00:00 that is 20:84:F5 — 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 Yufei Innovation Software(Shenzhen) Co., Ltd. located?

Yufei Innovation Software(Shenzhen) Co., Ltd. is listed at 115, Building 15, Maker Town, No.4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen Shenzhen CN 518051 in the IEEE OUI registry entry for 20:84:F5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Yufei Innovation Software(Shenzhen) Co., Ltd.

MAC address prefix 20:84:F5 is registered to Yufei Innovation Software(Shenzhen) Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 20:84:F5 has a network interface built by Yufei Innovation Software(Shenzhen) 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 20:84:F5:00:00:00 to 20:84:F5:FF:FF:FF.

OUI prefix: 20:84:F5
Hyphen form: 20-84-F5
MAC range: 20:84:F5:00:00:00 – 20:84:F5:FF:FF:FF
Addresses in block: 16,777,216
Organization: Yufei Innovation Software(Shenzhen) Co., Ltd.
Address: 115, Building 15, Maker Town, No.4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen Shenzhen CN 518051
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.

2022-07-11Assigned to "Yufei Innovation Software(Shenzhen) Co., Ltd."
archived source →
2026-07-17Assigned to "Yufei Innovation Software(Shenzhen) Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 20:84:F5:

FAQ

Which company owns MAC address prefix 20:84:F5?: MAC address prefix 20:84:F5 is registered to Yufei Innovation Software(Shenzhen) Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:84:F5 has a network interface built by Yufei Innovation Software(Shenzhen) Co., Ltd..
What is the OUI 20:84:F5?: 20:84:F5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Yufei Innovation Software(Shenzhen) Co., Ltd.. It covers every address from 20:84:F5:00:00:00 to 20:84:F5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-84-F5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 20:84:F5:00:00:00 that is 20:84:F5 — 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 Yufei Innovation Software(Shenzhen) Co., Ltd. located?: Yufei Innovation Software(Shenzhen) Co., Ltd. is listed at 115, Building 15, Maker Town, No.4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen Shenzhen CN 518051 in the IEEE OUI registry entry for 20:84:F5. This is the address the organization registered with the IEEE, which may differ from its current operating address.