Which company owns MAC address prefix C0:86:B3?

MAC address prefix C0:86:B3 is registered to Shenzhen Voxtech Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:86:B3 has a network interface built by Shenzhen Voxtech Co., Ltd..

What is the OUI C0:86:B3?

C0:86:B3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen Voxtech Co., Ltd.. It covers every address from C0:86:B3:00:00:00 to C0:86:B3:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-86-B3.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C0:86:B3:00:00:00 that is C0:86:B3 — 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 Shenzhen Voxtech Co., Ltd. located?

Shenzhen Voxtech Co., Ltd. is listed at Floors 1-4,Factory Building 26,Shancheng Industrial Park,Shiyan Street,Bao'an District,Shenzhen, Guangdong,China Shenzhen CN 518000 in the IEEE OUI registry entry for C0:86:B3. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Shenzhen Voxtech Co., Ltd.

MAC address prefix C0:86:B3 is registered to Shenzhen Voxtech Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with C0:86:B3 has a network interface built by Shenzhen Voxtech 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 C0:86:B3:00:00:00 to C0:86:B3:FF:FF:FF.

OUI prefix: C0:86:B3
Hyphen form: C0-86-B3
MAC range: C0:86:B3:00:00:00 – C0:86:B3:FF:FF:FF
Addresses in block: 16,777,216
Organization: Shenzhen Voxtech Co., Ltd.
Address: Floors 1-4,Factory Building 26,Shancheng Industrial Park,Shiyan Street,Bao'an District,Shenzhen, Guangdong,China Shenzhen CN 518000
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.

2020-05-13Assigned to "Shenzhen Voxtech Co., Ltd."
archived source →
2026-07-17Assigned to "Shenzhen Voxtech Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after C0:86:B3:

FAQ

Which company owns MAC address prefix C0:86:B3?: MAC address prefix C0:86:B3 is registered to Shenzhen Voxtech Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:86:B3 has a network interface built by Shenzhen Voxtech Co., Ltd..
What is the OUI C0:86:B3?: C0:86:B3 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen Voxtech Co., Ltd.. It covers every address from C0:86:B3:00:00:00 to C0:86:B3:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-86-B3.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C0:86:B3:00:00:00 that is C0:86:B3 — 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 Shenzhen Voxtech Co., Ltd. located?: Shenzhen Voxtech Co., Ltd. is listed at Floors 1-4,Factory Building 26,Shancheng Industrial Park,Shiyan Street,Bao'an District,Shenzhen, Guangdong,China Shenzhen CN 518000 in the IEEE OUI registry entry for C0:86:B3. This is the address the organization registered with the IEEE, which may differ from its current operating address.