Which company owns MAC address prefix C4:2C:4F?

MAC address prefix C4:2C:4F is registered to Qingdao Hisense Mobile Communication Technology Co,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C4:2C:4F has a network interface built by Qingdao Hisense Mobile Communication Technology Co,Ltd.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C4:2C:4F:00:00:00 that is C4:2C:4F — 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.

Qingdao Hisense Mobile Communication Technology Co,Ltd

MAC address prefix C4:2C:4F is registered to Qingdao Hisense Mobile Communication Technology Co,Ltd in the IEEE OUI registry. Any device whose MAC address begins with C4:2C:4F has a network interface built by Qingdao Hisense Mobile Communication Technology 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 C4:2C:4F:00:00:00 to C4:2C:4F:FF:FF:FF.

OUI prefix: C4:2C:4F
Hyphen form: C4-2C-4F
MAC range: C4:2C:4F:00:00:00 – C4:2C:4F:FF:FF:FF
Addresses in block: 16,777,216
Organization: Qingdao Hisense Mobile Communication Technology Co,Ltd
Address: No.399, Song Ling Road Qingdao Shandong CN 266100
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 "Qingdao Hisense Mobile Communication Technology Co,Ltd"
archived source →
2026-07-17Assigned to "Qingdao Hisense Mobile Communication Technology Co,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after C4:2C:4F:

FAQ

Which company owns MAC address prefix C4:2C:4F?: MAC address prefix C4:2C:4F is registered to Qingdao Hisense Mobile Communication Technology Co,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C4:2C:4F has a network interface built by Qingdao Hisense Mobile Communication Technology Co,Ltd.
What is the OUI C4:2C:4F?: C4:2C:4F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Qingdao Hisense Mobile Communication Technology Co,Ltd. It covers every address from C4:2C:4F:00:00:00 to C4:2C:4F:FF:FF:FF, or 16,777,216 addresses in total. It is also written C4-2C-4F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C4:2C:4F:00:00:00 that is C4:2C:4F — 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 Qingdao Hisense Mobile Communication Technology Co,Ltd located?: Qingdao Hisense Mobile Communication Technology Co,Ltd is listed at No.399, Song Ling Road Qingdao Shandong CN 266100 in the IEEE OUI registry entry for C4:2C:4F. This is the address the organization registered with the IEEE, which may differ from its current operating address.