Which company owns MAC address prefix DC:DE:4B?

MAC address prefix DC:DE:4B is registered to SHENZHEN TRANSCHAN TECHNOLOGY LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:DE:4B has a network interface built by SHENZHEN TRANSCHAN TECHNOLOGY LIMITED.

What is the OUI DC:DE:4B?

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

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:DE:4B:00:00:00 that is DC:DE: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 TRANSCHAN TECHNOLOGY LIMITED located?

SHENZHEN TRANSCHAN TECHNOLOGY LIMITED is listed at Room 03, 23/F, Unit B Building, No 9, Shenzhen Bay Eco -Technology Park, Yuehai Street, Nanshan District, Shenzhen, China Shenzhen CN 518000 in the IEEE OUI registry entry for DC:DE:4B. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does SHENZHEN TRANSCHAN TECHNOLOGY LIMITED own?

SHENZHEN TRANSCHAN TECHNOLOGY LIMITED holds 4 OUI prefixes in the IEEE registry, of which DC:DE:4B is one. A device made by SHENZHEN TRANSCHAN TECHNOLOGY LIMITED could carry a MAC address from any of them.

SHENZHEN TRANSCHAN TECHNOLOGY LIMITED

MAC address prefix DC:DE:4B is registered to SHENZHEN TRANSCHAN TECHNOLOGY LIMITED in the IEEE OUI registry. Any device whose MAC address begins with DC:DE:4B has a network interface built by SHENZHEN TRANSCHAN TECHNOLOGY LIMITED. 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 DC:DE:4B:00:00:00 to DC:DE:4B:FF:FF:FF.

OUI prefix: DC:DE:4B
Hyphen form: DC-DE-4B
MAC range: DC:DE:4B:00:00:00 – DC:DE:4B:FF:FF:FF
Addresses in block: 16,777,216
Organization: SHENZHEN TRANSCHAN TECHNOLOGY LIMITED
Address: Room 03, 23/F, Unit B Building, No 9, Shenzhen Bay Eco -Technology Park, Yuehai Street, Nanshan District, Shenzhen, 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.

Other prefixes from SHENZHEN TRANSCHAN TECHNOLOGY LIMITED

SHENZHEN TRANSCHAN TECHNOLOGY LIMITED holds 4 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2026-06-20Assigned to "SHENZHEN TRANSCHAN TECHNOLOGY LIMITED"
archived source →
2026-07-17Assigned to "SHENZHEN TRANSCHAN TECHNOLOGY LIMITED"

Nearby in the registry

The prefixes assigned immediately before and after DC:DE:4B:

FAQ

Which company owns MAC address prefix DC:DE:4B?: MAC address prefix DC:DE:4B is registered to SHENZHEN TRANSCHAN TECHNOLOGY LIMITED in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:DE:4B has a network interface built by SHENZHEN TRANSCHAN TECHNOLOGY LIMITED.
What is the OUI DC:DE:4B?: DC:DE:4B is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SHENZHEN TRANSCHAN TECHNOLOGY LIMITED. It covers every address from DC:DE:4B:00:00:00 to DC:DE:4B:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-DE-4B.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:DE:4B:00:00:00 that is DC:DE: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 TRANSCHAN TECHNOLOGY LIMITED located?: SHENZHEN TRANSCHAN TECHNOLOGY LIMITED is listed at Room 03, 23/F, Unit B Building, No 9, Shenzhen Bay Eco -Technology Park, Yuehai Street, Nanshan District, Shenzhen, China Shenzhen CN 518000 in the IEEE OUI registry entry for DC:DE:4B. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does SHENZHEN TRANSCHAN TECHNOLOGY LIMITED own?: SHENZHEN TRANSCHAN TECHNOLOGY LIMITED holds 4 OUI prefixes in the IEEE registry, of which DC:DE:4B is one. A device made by SHENZHEN TRANSCHAN TECHNOLOGY LIMITED could carry a MAC address from any of them.