Which company owns MAC address prefix 34:1F:C4?

MAC address prefix 34:1F:C4 is registered to Shenzhen V-Link Technology CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:1F:C4 has a network interface built by Shenzhen V-Link Technology CO., LTD..

What is the OUI 34:1F:C4?

34:1F:C4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen V-Link Technology CO., LTD.. It covers every address from 34:1F:C4:00:00:00 to 34:1F:C4:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-1F-C4.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 34:1F:C4:00:00:00 that is 34:1F:C4 — 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 V-Link Technology CO., LTD. located?

Shenzhen V-Link Technology CO., LTD. is listed at Room 1803, BaiRuiDa Building, Bantian Sub-district, LongGang District Shenzhen GuangDong CN 518000 in the IEEE OUI registry entry for 34:1F:C4. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Shenzhen V-Link Technology CO., LTD. own?

Shenzhen V-Link Technology CO., LTD. holds 4 OUI prefixes in the IEEE registry, of which 34:1F:C4 is one. A device made by Shenzhen V-Link Technology CO., LTD. could carry a MAC address from any of them.

Shenzhen V-Link Technology CO., LTD.

MAC address prefix 34:1F:C4 is registered to Shenzhen V-Link Technology CO., LTD. in the IEEE OUI registry. Any device whose MAC address begins with 34:1F:C4 has a network interface built by Shenzhen V-Link 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 34:1F:C4:00:00:00 to 34:1F:C4:FF:FF:FF.

OUI prefix: 34:1F:C4
Hyphen form: 34-1F-C4
MAC range: 34:1F:C4:00:00:00 – 34:1F:C4:FF:FF:FF
Addresses in block: 16,777,216
Organization: Shenzhen V-Link Technology CO., LTD.
Address: Room 1803, BaiRuiDa Building, Bantian Sub-district, LongGang District Shenzhen GuangDong 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 V-Link Technology CO., LTD.

Shenzhen V-Link Technology CO., LTD. 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.

2026-01-08Assigned to "Shenzhen V-Link Technology CO., LTD."
archived source →
2026-07-17Assigned to "Shenzhen V-Link Technology CO., LTD."

Nearby in the registry

The prefixes assigned immediately before and after 34:1F:C4:

FAQ

Which company owns MAC address prefix 34:1F:C4?: MAC address prefix 34:1F:C4 is registered to Shenzhen V-Link Technology CO., LTD. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 34:1F:C4 has a network interface built by Shenzhen V-Link Technology CO., LTD..
What is the OUI 34:1F:C4?: 34:1F:C4 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Shenzhen V-Link Technology CO., LTD.. It covers every address from 34:1F:C4:00:00:00 to 34:1F:C4:FF:FF:FF, or 16,777,216 addresses in total. It is also written 34-1F-C4.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 34:1F:C4:00:00:00 that is 34:1F:C4 — 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 V-Link Technology CO., LTD. located?: Shenzhen V-Link Technology CO., LTD. is listed at Room 1803, BaiRuiDa Building, Bantian Sub-district, LongGang District Shenzhen GuangDong CN 518000 in the IEEE OUI registry entry for 34:1F:C4. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Shenzhen V-Link Technology CO., LTD. own?: Shenzhen V-Link Technology CO., LTD. holds 4 OUI prefixes in the IEEE registry, of which 34:1F:C4 is one. A device made by Shenzhen V-Link Technology CO., LTD. could carry a MAC address from any of them.