Which company owns MAC address prefix 58:F6:7B?

MAC address prefix 58:F6:7B is registered to Xia Men UnionCore Technology LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 58:F6:7B has a network interface built by Xia Men UnionCore Technology LTD..

What is the OUI 58:F6:7B?

58:F6:7B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Xia Men UnionCore Technology LTD.. It covers every address from 58:F6:7B:00:00:00 to 58:F6:7B:FF:FF:FF, or 16,777,216 addresses in total. It is also written 58-F6-7B.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 58:F6:7B:00:00:00 that is 58:F6:7B — 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 Xia Men UnionCore Technology LTD. located?

Xia Men UnionCore Technology LTD. is listed at (224)2F Chuangye Building,Xiamen Pioneering Park for Overseas Chinese Scholars Xia Men Fu Jian CN 361009 in the IEEE OUI registry entry for 58:F6:7B. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Xia Men UnionCore Technology LTD.

MAC address prefix 58:F6:7B is registered to Xia Men UnionCore Technology LTD. in the IEEE OUI registry. Any device whose MAC address begins with 58:F6:7B has a network interface built by Xia Men UnionCore 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 58:F6:7B:00:00:00 to 58:F6:7B:FF:FF:FF.

OUI prefix: 58:F6:7B
Hyphen form: 58-F6-7B
MAC range: 58:F6:7B:00:00:00 – 58:F6:7B:FF:FF:FF
Addresses in block: 16,777,216
Organization: Xia Men UnionCore Technology LTD.
Address: (224)2F Chuangye Building,Xiamen Pioneering Park for Overseas Chinese Scholars Xia Men Fu Jian CN 361009
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 "Xia Men UnionCore Technology LTD."
archived source →
2026-07-17Assigned to "Xia Men UnionCore Technology LTD."

Nearby in the registry

The prefixes assigned immediately before and after 58:F6:7B:

FAQ

Which company owns MAC address prefix 58:F6:7B?: MAC address prefix 58:F6:7B is registered to Xia Men UnionCore Technology LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 58:F6:7B has a network interface built by Xia Men UnionCore Technology LTD..
What is the OUI 58:F6:7B?: 58:F6:7B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Xia Men UnionCore Technology LTD.. It covers every address from 58:F6:7B:00:00:00 to 58:F6:7B:FF:FF:FF, or 16,777,216 addresses in total. It is also written 58-F6-7B.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 58:F6:7B:00:00:00 that is 58:F6:7B — 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 Xia Men UnionCore Technology LTD. located?: Xia Men UnionCore Technology LTD. is listed at (224)2F Chuangye Building,Xiamen Pioneering Park for Overseas Chinese Scholars Xia Men Fu Jian CN 361009 in the IEEE OUI registry entry for 58:F6:7B. This is the address the organization registered with the IEEE, which may differ from its current operating address.