Which company owns MAC address prefix 04:58:6F?

MAC address prefix 04:58:6F is registered to Sichuan Whayer information industry Co.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:58:6F has a network interface built by Sichuan Whayer information industry Co.,LTD.

What is the OUI 04:58:6F?

04:58:6F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sichuan Whayer information industry Co.,LTD. It covers every address from 04:58:6F:00:00:00 to 04:58:6F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-58-6F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:58:6F:00:00:00 that is 04:58:6F — 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 Sichuan Whayer information industry Co.,LTD located?

Sichuan Whayer information industry Co.,LTD is listed at Layer 16,Building 10, C Area Chengdu City CN 610041 in the IEEE OUI registry entry for 04:58:6F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Sichuan Whayer information industry Co.,LTD

MAC address prefix 04:58:6F is registered to Sichuan Whayer information industry Co.,LTD in the IEEE OUI registry. Any device whose MAC address begins with 04:58:6F has a network interface built by Sichuan Whayer information industry 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 04:58:6F:00:00:00 to 04:58:6F:FF:FF:FF.

OUI prefix: 04:58:6F
Hyphen form: 04-58-6F
MAC range: 04:58:6F:00:00:00 – 04:58:6F:FF:FF:FF
Addresses in block: 16,777,216
Organization: Sichuan Whayer information industry Co.,LTD
Address: Layer 16,Building 10, C Area Chengdu City CN 610041
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.

2016-07-29Assigned to "Sichuan Whayer information industry Co.,LTD"
archived source →
2026-07-17Assigned to "Sichuan Whayer information industry Co.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after 04:58:6F:

FAQ

Which company owns MAC address prefix 04:58:6F?: MAC address prefix 04:58:6F is registered to Sichuan Whayer information industry Co.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:58:6F has a network interface built by Sichuan Whayer information industry Co.,LTD.
What is the OUI 04:58:6F?: 04:58:6F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Sichuan Whayer information industry Co.,LTD. It covers every address from 04:58:6F:00:00:00 to 04:58:6F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-58-6F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:58:6F:00:00:00 that is 04:58:6F — 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 Sichuan Whayer information industry Co.,LTD located?: Sichuan Whayer information industry Co.,LTD is listed at Layer 16,Building 10, C Area Chengdu City CN 610041 in the IEEE OUI registry entry for 04:58:6F. This is the address the organization registered with the IEEE, which may differ from its current operating address.