Which company owns MAC address prefix 80:CA:4B?

MAC address prefix 80:CA:4B is registered to SHENZHEN GONGJIN ELECTRONICS CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:CA:4B has a network interface built by SHENZHEN GONGJIN ELECTRONICS CO.,LTD.

What is the OUI 80:CA:4B?

80:CA:4B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHENZHEN GONGJIN ELECTRONICS CO.,LTD. It covers every address from 80:CA:4B:00:00:00 to 80:CA:4B:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-CA-4B.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 80:CA:4B:00:00:00 that is 80:CA:4B — 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 GONGJIN ELECTRONICS CO.,LTD located?

SHENZHEN GONGJIN ELECTRONICS CO.,LTD is listed at No.2, Danzi North Road, Kengzi Street,Pingshan District, SHENZHEN GUANGDONG CN 518122 in the IEEE OUI registry entry for 80:CA:4B. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SHENZHEN GONGJIN ELECTRONICS CO.,LTD

MAC address prefix 80:CA:4B is registered to SHENZHEN GONGJIN ELECTRONICS CO.,LTD in the IEEE OUI registry. Any device whose MAC address begins with 80:CA:4B has a network interface built by SHENZHEN GONGJIN ELECTRONICS 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 80:CA:4B:00:00:00 to 80:CA:4B:FF:FF:FF.

OUI prefix: 80:CA:4B
Hyphen form: 80-CA-4B
MAC range: 80:CA:4B:00:00:00 – 80:CA:4B:FF:FF:FF
Addresses in block: 16,777,216
Organization: SHENZHEN GONGJIN ELECTRONICS CO.,LTD
Address: No.2, Danzi North Road, Kengzi Street,Pingshan District, SHENZHEN GUANGDONG CN 518122
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.

2020-08-05Assigned to "SHENZHEN GONGJIN ELECTRONICS CO.,LTD"
archived source →
2026-07-17Assigned to "SHENZHEN GONGJIN ELECTRONICS CO.,LTD"

Nearby in the registry

The prefixes assigned immediately before and after 80:CA:4B:

FAQ

Which company owns MAC address prefix 80:CA:4B?: MAC address prefix 80:CA:4B is registered to SHENZHEN GONGJIN ELECTRONICS CO.,LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:CA:4B has a network interface built by SHENZHEN GONGJIN ELECTRONICS CO.,LTD.
What is the OUI 80:CA:4B?: 80:CA:4B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHENZHEN GONGJIN ELECTRONICS CO.,LTD. It covers every address from 80:CA:4B:00:00:00 to 80:CA:4B:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-CA-4B.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 80:CA:4B:00:00:00 that is 80:CA:4B — 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 GONGJIN ELECTRONICS CO.,LTD located?: SHENZHEN GONGJIN ELECTRONICS CO.,LTD is listed at No.2, Danzi North Road, Kengzi Street,Pingshan District, SHENZHEN GUANGDONG CN 518122 in the IEEE OUI registry entry for 80:CA:4B. This is the address the organization registered with the IEEE, which may differ from its current operating address.