Which company owns MAC address prefix F0:A7:64?

MAC address prefix F0:A7:64 is registered to GST Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F0:A7:64 has a network interface built by GST Co., Ltd..

What is the OUI F0:A7:64?

F0:A7:64 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GST Co., Ltd.. It covers every address from F0:A7:64:00:00:00 to F0:A7:64:FF:FF:FF, or 16,777,216 addresses in total. It is also written F0-A7-64.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F0:A7:64:00:00:00 that is F0:A7:64 — 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 GST Co., Ltd. located?

GST Co., Ltd. is listed at #988-6, Gosaek-Dong, Gwonseon-Gu Suwon-Si Gyeonggi-Do KR 441-813 in the IEEE OUI registry entry for F0:A7:64. This is the address the organization registered with the IEEE, which may differ from its current operating address.

GST Co., Ltd.

MAC address prefix F0:A7:64 is registered to GST Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with F0:A7:64 has a network interface built by GST 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 F0:A7:64:00:00:00 to F0:A7:64:FF:FF:FF.

OUI prefix: F0:A7:64
Hyphen form: F0-A7-64
MAC range: F0:A7:64:00:00:00 – F0:A7:64:FF:FF:FF
Addresses in block: 16,777,216
Organization: GST Co., Ltd.
Address: #988-6, Gosaek-Dong, Gwonseon-Gu Suwon-Si Gyeonggi-Do KR 441-813
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 "GST Co., Ltd."
archived source →
2026-07-17Assigned to "GST Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after F0:A7:64:

FAQ

Which company owns MAC address prefix F0:A7:64?: MAC address prefix F0:A7:64 is registered to GST Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F0:A7:64 has a network interface built by GST Co., Ltd..
What is the OUI F0:A7:64?: F0:A7:64 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to GST Co., Ltd.. It covers every address from F0:A7:64:00:00:00 to F0:A7:64:FF:FF:FF, or 16,777,216 addresses in total. It is also written F0-A7-64.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F0:A7:64:00:00:00 that is F0:A7:64 — 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 GST Co., Ltd. located?: GST Co., Ltd. is listed at #988-6, Gosaek-Dong, Gwonseon-Gu Suwon-Si Gyeonggi-Do KR 441-813 in the IEEE OUI registry entry for F0:A7:64. This is the address the organization registered with the IEEE, which may differ from its current operating address.