Which company owns MAC address prefix FC:9D:05?

MAC address prefix FC:9D:05 is registered to Micro-Star INTL CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:9D:05 has a network interface built by Micro-Star INTL CO., LTD..

What is the OUI FC:9D:05?

FC:9D:05 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Micro-Star INTL CO., LTD.. It covers every address from FC:9D:05:00:00:00 to FC:9D:05:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-9D-05.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in FC:9D:05:00:00:00 that is FC:9D:05 — 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 Micro-Star INTL CO., LTD. located?

Micro-Star INTL CO., LTD. is listed at No.69, Lide St., Zhonghe Dist., New Taipei City TW 235 in the IEEE OUI registry entry for FC:9D:05. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Micro-Star INTL CO., LTD. own?

Micro-Star INTL CO., LTD. holds 10 OUI prefixes in the IEEE registry, of which FC:9D:05 is one. A device made by Micro-Star INTL CO., LTD. could carry a MAC address from any of them.

Micro-Star INTL CO., LTD.

MAC address prefix FC:9D:05 is registered to Micro-Star INTL CO., LTD. in the IEEE OUI registry. Any device whose MAC address begins with FC:9D:05 has a network interface built by Micro-Star INTL 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 FC:9D:05:00:00:00 to FC:9D:05:FF:FF:FF.

OUI prefix: FC:9D:05
Hyphen form: FC-9D-05
MAC range: FC:9D:05:00:00:00 – FC:9D:05:FF:FF:FF
Addresses in block: 16,777,216
Organization: Micro-Star INTL CO., LTD.
Address: No.69, Lide St., Zhonghe Dist., New Taipei City TW 235
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 Micro-Star INTL CO., LTD.

Micro-Star INTL CO., LTD. holds 10 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (2)

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

2025-08-23Assigned to "Micro-Star INTL CO., LTD."
archived source →
2026-07-17Assigned to "Micro-Star INTL CO., LTD."

Nearby in the registry

The prefixes assigned immediately before and after FC:9D:05:

FAQ

Which company owns MAC address prefix FC:9D:05?: MAC address prefix FC:9D:05 is registered to Micro-Star INTL CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with FC:9D:05 has a network interface built by Micro-Star INTL CO., LTD..
What is the OUI FC:9D:05?: FC:9D:05 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Micro-Star INTL CO., LTD.. It covers every address from FC:9D:05:00:00:00 to FC:9D:05:FF:FF:FF, or 16,777,216 addresses in total. It is also written FC-9D-05.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in FC:9D:05:00:00:00 that is FC:9D:05 — 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 Micro-Star INTL CO., LTD. located?: Micro-Star INTL CO., LTD. is listed at No.69, Lide St., Zhonghe Dist., New Taipei City TW 235 in the IEEE OUI registry entry for FC:9D:05. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Micro-Star INTL CO., LTD. own?: Micro-Star INTL CO., LTD. holds 10 OUI prefixes in the IEEE registry, of which FC:9D:05 is one. A device made by Micro-Star INTL CO., LTD. could carry a MAC address from any of them.