Which company owns MAC address prefix 04:02:CA?

MAC address prefix 04:02:CA is registered to Shenzhen Vtsonic Co.,ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:02:CA has a network interface built by Shenzhen Vtsonic Co.,ltd.

What is the OUI 04:02:CA?

04:02:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen Vtsonic Co.,ltd. It covers every address from 04:02:CA:00:00:00 to 04:02:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-02-CA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 04:02:CA:00:00:00 that is 04:02:CA — 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 Vtsonic Co.,ltd located?

Shenzhen Vtsonic Co.,ltd is listed at No.35,the 2nd Industrial Zone,Tangxiayong Village,Songgang Town,Bao'an District,Shenzhen,China. Shenzhen Guangdong CN 518102 in the IEEE OUI registry entry for 04:02:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Shenzhen Vtsonic Co.,ltd

MAC address prefix 04:02:CA is registered to Shenzhen Vtsonic Co.,ltd in the IEEE OUI registry. Any device whose MAC address begins with 04:02:CA has a network interface built by Shenzhen Vtsonic 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 04:02:CA:00:00:00 to 04:02:CA:FF:FF:FF.

OUI prefix: 04:02:CA
Hyphen form: 04-02-CA
MAC range: 04:02:CA:00:00:00 – 04:02:CA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Shenzhen Vtsonic Co.,ltd
Address: No.35,the 2nd Industrial Zone,Tangxiayong Village,Songgang Town,Bao'an District,Shenzhen,China. Shenzhen Guangdong CN 518102
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.

2018-12-21Assigned to "Shenzhen Vtsonic Co.,ltd"
archived source →
2026-07-17Assigned to "Shenzhen Vtsonic Co.,ltd"

Nearby in the registry

The prefixes assigned immediately before and after 04:02:CA:

FAQ

Which company owns MAC address prefix 04:02:CA?: MAC address prefix 04:02:CA is registered to Shenzhen Vtsonic Co.,ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 04:02:CA has a network interface built by Shenzhen Vtsonic Co.,ltd.
What is the OUI 04:02:CA?: 04:02:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen Vtsonic Co.,ltd. It covers every address from 04:02:CA:00:00:00 to 04:02:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 04-02-CA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 04:02:CA:00:00:00 that is 04:02:CA — 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 Vtsonic Co.,ltd located?: Shenzhen Vtsonic Co.,ltd is listed at No.35,the 2nd Industrial Zone,Tangxiayong Village,Songgang Town,Bao'an District,Shenzhen,China. Shenzhen Guangdong CN 518102 in the IEEE OUI registry entry for 04:02:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.