Which company owns MAC address prefix C8:05:9E?

MAC address prefix C8:05:9E is registered to Hefei Symboltek Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:05:9E has a network interface built by Hefei Symboltek Co.,Ltd.

What is the OUI C8:05:9E?

C8:05:9E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hefei Symboltek Co.,Ltd. It covers every address from C8:05:9E:00:00:00 to C8:05:9E:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-05-9E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:05:9E:00:00:00 that is C8:05:9E — 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 Hefei Symboltek Co.,Ltd located?

Hefei Symboltek Co.,Ltd is listed at Standard factory building 2 layer,Tianmen Lake 1#,No.36 Fairview Avenue District Econmic Development Zone Hefei, Anhui Hefei Anhui CN 230601 in the IEEE OUI registry entry for C8:05:9E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hefei Symboltek Co.,Ltd

MAC address prefix C8:05:9E is registered to Hefei Symboltek Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with C8:05:9E has a network interface built by Hefei Symboltek 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 C8:05:9E:00:00:00 to C8:05:9E:FF:FF:FF.

OUI prefix: C8:05:9E
Hyphen form: C8-05-9E
MAC range: C8:05:9E:00:00:00 – C8:05:9E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hefei Symboltek Co.,Ltd
Address: Standard factory building 2 layer,Tianmen Lake 1#,No.36 Fairview Avenue District Econmic Development Zone Hefei, Anhui Hefei Anhui CN 230601
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.

2021-06-10Assigned to "Hefei Symboltek Co.,Ltd"
archived source →
2026-07-17Assigned to "Hefei Symboltek Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after C8:05:9E:

FAQ

Which company owns MAC address prefix C8:05:9E?: MAC address prefix C8:05:9E is registered to Hefei Symboltek Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:05:9E has a network interface built by Hefei Symboltek Co.,Ltd.
What is the OUI C8:05:9E?: C8:05:9E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hefei Symboltek Co.,Ltd. It covers every address from C8:05:9E:00:00:00 to C8:05:9E:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-05-9E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:05:9E:00:00:00 that is C8:05:9E — 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 Hefei Symboltek Co.,Ltd located?: Hefei Symboltek Co.,Ltd is listed at Standard factory building 2 layer,Tianmen Lake 1#,No.36 Fairview Avenue District Econmic Development Zone Hefei, Anhui Hefei Anhui CN 230601 in the IEEE OUI registry entry for C8:05:9E. This is the address the organization registered with the IEEE, which may differ from its current operating address.