Which company owns MAC address prefix C0:5F:87?

MAC address prefix C0:5F:87 is registered to Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:5F:87 has a network interface built by Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD..

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C0:5F:87:00:00:00 that is C0:5F:87 — 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.

Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD.

MAC address prefix C0:5F:87 is registered to Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD. in the IEEE OUI registry. Any device whose MAC address begins with C0:5F:87 has a network interface built by Legrand INTELLIGENT ELECTRICAL(HUIZHOU)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 C0:5F:87:00:00:00 to C0:5F:87:FF:FF:FF.

OUI prefix: C0:5F:87
Hyphen form: C0-5F-87
MAC range: C0:5F:87:00:00:00 – C0:5F:87:FF:FF:FF
Addresses in block: 16,777,216
Organization: Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD.
Address: 39 East Hechang 6 Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province Huizhou City Guangdong Province CN 516001
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.

2024-02-15Assigned to "Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD."
archived source →
2026-07-17Assigned to "Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD."

Nearby in the registry

The prefixes assigned immediately before and after C0:5F:87:

FAQ

Which company owns MAC address prefix C0:5F:87?: MAC address prefix C0:5F:87 is registered to Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:5F:87 has a network interface built by Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD..
What is the OUI C0:5F:87?: C0:5F:87 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD.. It covers every address from C0:5F:87:00:00:00 to C0:5F:87:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-5F-87.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C0:5F:87:00:00:00 that is C0:5F:87 — 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 Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD. located?: Legrand INTELLIGENT ELECTRICAL(HUIZHOU)CO.,LTD. is listed at 39 East Hechang 6 Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province Huizhou City Guangdong Province CN 516001 in the IEEE OUI registry entry for C0:5F:87. This is the address the organization registered with the IEEE, which may differ from its current operating address.