Which company owns MAC address prefix 08:64:80?

MAC address prefix 08:64:80 is registered to Black Sesame Technologies Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:64:80 has a network interface built by Black Sesame Technologies Co., Ltd.

What is the OUI 08:64:80?

08:64:80 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Black Sesame Technologies Co., Ltd. It covers every address from 08:64:80:00:00:00 to 08:64:80:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-64-80.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 08:64:80:00:00:00 that is 08:64:80 — 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 Black Sesame Technologies Co., Ltd located?

Black Sesame Technologies Co., Ltd is listed at 29th / 30th Floor, Building A, CHUNG HING TIMES DIGITAL TRADE PORT, No. 79, Xudong Street, Hongshan District, Wuhan City, Hubei Province Wuhan Hubei CN 430000 in the IEEE OUI registry entry for 08:64:80. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Black Sesame Technologies Co., Ltd

MAC address prefix 08:64:80 is registered to Black Sesame Technologies Co., Ltd in the IEEE OUI registry. Any device whose MAC address begins with 08:64:80 has a network interface built by Black Sesame Technologies 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 08:64:80:00:00:00 to 08:64:80:FF:FF:FF.

OUI prefix: 08:64:80
Hyphen form: 08-64-80
MAC range: 08:64:80:00:00:00 – 08:64:80:FF:FF:FF
Addresses in block: 16,777,216
Organization: Black Sesame Technologies Co., Ltd
Address: 29th / 30th Floor, Building A, CHUNG HING TIMES DIGITAL TRADE PORT, No. 79, Xudong Street, Hongshan District, Wuhan City, Hubei Province Wuhan Hubei CN 430000
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.

2026-06-20Assigned to "Black Sesame Technologies Co., Ltd"
archived source →
2026-07-17Assigned to "Black Sesame Technologies Co., Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 08:64:80:

FAQ

Which company owns MAC address prefix 08:64:80?: MAC address prefix 08:64:80 is registered to Black Sesame Technologies Co., Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 08:64:80 has a network interface built by Black Sesame Technologies Co., Ltd.
What is the OUI 08:64:80?: 08:64:80 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Black Sesame Technologies Co., Ltd. It covers every address from 08:64:80:00:00:00 to 08:64:80:FF:FF:FF, or 16,777,216 addresses in total. It is also written 08-64-80.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 08:64:80:00:00:00 that is 08:64:80 — 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 Black Sesame Technologies Co., Ltd located?: Black Sesame Technologies Co., Ltd is listed at 29th / 30th Floor, Building A, CHUNG HING TIMES DIGITAL TRADE PORT, No. 79, Xudong Street, Hongshan District, Wuhan City, Hubei Province Wuhan Hubei CN 430000 in the IEEE OUI registry entry for 08:64:80. This is the address the organization registered with the IEEE, which may differ from its current operating address.