Which company owns MAC address prefix FC:5A:DC?

MAC address prefix FC:5A:DC is registered to Keenetic Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:5A:DC has a network interface built by Keenetic Limited.

What is the OUI FC:5A:DC?

FC:5A:DC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Keenetic Limited. It covers every address from FC:5A:DC:00:00:00 to FC:5A:DC:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-5A-DC.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in FC:5A:DC:00:00:00 that is FC:5A:DC — 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 Keenetic Limited located?

Keenetic Limited is listed at 1202, 12/F., AT TOWER, 180 ELECTRIC ROAD, NORTH POINT HONG KONG HK 852 in the IEEE OUI registry entry for FC:5A:DC. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Keenetic Limited own?

Keenetic Limited holds 2 OUI prefixes in the IEEE registry, of which FC:5A:DC is one. A device made by Keenetic Limited could carry a MAC address from any of them.

Keenetic Limited

MAC address prefix FC:5A:DC is registered to Keenetic Limited in the IEEE OUI registry. Any device whose MAC address begins with FC:5A:DC has a network interface built by Keenetic Limited. 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 FC:5A:DC:00:00:00 to FC:5A:DC:FF:FF:FF.

OUI prefix: FC:5A:DC
Hyphen form: FC-5A-DC
MAC range: FC:5A:DC:00:00:00 – FC:5A:DC:FF:FF:FF
Addresses in block: 16,777,216
Organization: Keenetic Limited
Address: 1202, 12/F., AT TOWER, 180 ELECTRIC ROAD, NORTH POINT HONG KONG HK 852
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.

Other prefixes from Keenetic Limited

Keenetic Limited holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

50:FF:20

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2025-02-27Assigned to "Keenetic Limited"
archived source →
2026-07-17Assigned to "Keenetic Limited"

Nearby in the registry

The prefixes assigned immediately before and after FC:5A:DC:

FAQ

Which company owns MAC address prefix FC:5A:DC?: MAC address prefix FC:5A:DC is registered to Keenetic Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:5A:DC has a network interface built by Keenetic Limited.
What is the OUI FC:5A:DC?: FC:5A:DC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Keenetic Limited. It covers every address from FC:5A:DC:00:00:00 to FC:5A:DC:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-5A-DC.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in FC:5A:DC:00:00:00 that is FC:5A:DC — 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 Keenetic Limited located?: Keenetic Limited is listed at 1202, 12/F., AT TOWER, 180 ELECTRIC ROAD, NORTH POINT HONG KONG HK 852 in the IEEE OUI registry entry for FC:5A:DC. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Keenetic Limited own?: Keenetic Limited holds 2 OUI prefixes in the IEEE registry, of which FC:5A:DC is one. A device made by Keenetic Limited could carry a MAC address from any of them.