Which company owns MAC address prefix 70:85:40?

MAC address prefix 70:85:40 is registered to Skyworth Digital Technology(Shenzhen) Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:85:40 has a network interface built by Skyworth Digital Technology(Shenzhen) Co.,Ltd.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 70:85:40:00:00:00 that is 70:85:40 — 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 Skyworth Digital Technology(Shenzhen) Co.,Ltd located?

Skyworth Digital Technology(Shenzhen) Co.,Ltd is listed at 7F,Block A,Skyworth Building, Shenzhen Guangdong CN 518057 in the IEEE OUI registry entry for 70:85:40. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Skyworth Digital Technology(Shenzhen) Co.,Ltd own?

Skyworth Digital Technology(Shenzhen) Co.,Ltd holds 17 OUI prefixes in the IEEE registry, of which 70:85:40 is one. A device made by Skyworth Digital Technology(Shenzhen) Co.,Ltd could carry a MAC address from any of them.

Skyworth Digital Technology(Shenzhen) Co.,Ltd

MAC address prefix 70:85:40 is registered to Skyworth Digital Technology(Shenzhen) Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with 70:85:40 has a network interface built by Skyworth Digital Technology(Shenzhen) 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 70:85:40:00:00:00 to 70:85:40:FF:FF:FF.

OUI prefix: 70:85:40
Hyphen form: 70-85-40
MAC range: 70:85:40:00:00:00 – 70:85:40:FF:FF:FF
Addresses in block: 16,777,216
Organization: Skyworth Digital Technology(Shenzhen) Co.,Ltd
Address: 7F,Block A,Skyworth Building, Shenzhen Guangdong CN 518057
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 Skyworth Digital Technology(Shenzhen) Co.,Ltd

Skyworth Digital Technology(Shenzhen) Co.,Ltd holds 17 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.

2018-12-21Assigned to "Skyworth Digital Technology(Shenzhen) Co.,Ltd"
archived source →
2026-07-17Assigned to "Skyworth Digital Technology(Shenzhen) Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 70:85:40:

FAQ

Which company owns MAC address prefix 70:85:40?: MAC address prefix 70:85:40 is registered to Skyworth Digital Technology(Shenzhen) Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:85:40 has a network interface built by Skyworth Digital Technology(Shenzhen) Co.,Ltd.
What is the OUI 70:85:40?: 70:85:40 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Skyworth Digital Technology(Shenzhen) Co.,Ltd. It covers every address from 70:85:40:00:00:00 to 70:85:40:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-85-40.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 70:85:40:00:00:00 that is 70:85:40 — 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 Skyworth Digital Technology(Shenzhen) Co.,Ltd located?: Skyworth Digital Technology(Shenzhen) Co.,Ltd is listed at 7F,Block A,Skyworth Building, Shenzhen Guangdong CN 518057 in the IEEE OUI registry entry for 70:85:40. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Skyworth Digital Technology(Shenzhen) Co.,Ltd own?: Skyworth Digital Technology(Shenzhen) Co.,Ltd holds 17 OUI prefixes in the IEEE registry, of which 70:85:40 is one. A device made by Skyworth Digital Technology(Shenzhen) Co.,Ltd could carry a MAC address from any of them.