Which company owns MAC address prefix 40:6E:0F?

MAC address prefix 40:6E:0F is registered to SKYASTAR TECHNOLOGLES(ZHUHAI) LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 40:6E:0F has a network interface built by SKYASTAR TECHNOLOGLES(ZHUHAI) LTD.

What is the OUI 40:6E:0F?

40:6E:0F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SKYASTAR TECHNOLOGLES(ZHUHAI) LTD. It covers every address from 40:6E:0F:00:00:00 to 40:6E:0F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 40-6E-0F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 40:6E:0F:00:00:00 that is 40:6E:0F — 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 SKYASTAR TECHNOLOGLES(ZHUHAI) LTD located?

SKYASTAR TECHNOLOGLES(ZHUHAI) LTD is listed at 3F, 5# Building, Maker Town, Jinwan, Zhuhai, Guangdong, 519090 China ZHUHAI Guangdong CN 519090 in the IEEE OUI registry entry for 40:6E:0F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

SKYASTAR TECHNOLOGLES(ZHUHAI) LTD

MAC address prefix 40:6E:0F is registered to SKYASTAR TECHNOLOGLES(ZHUHAI) LTD in the IEEE OUI registry. Any device whose MAC address begins with 40:6E:0F has a network interface built by SKYASTAR TECHNOLOGLES(ZHUHAI) 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 40:6E:0F:00:00:00 to 40:6E:0F:FF:FF:FF.

OUI prefix: 40:6E:0F
Hyphen form: 40-6E-0F
MAC range: 40:6E:0F:00:00:00 – 40:6E:0F:FF:FF:FF
Addresses in block: 16,777,216
Organization: SKYASTAR TECHNOLOGLES(ZHUHAI) LTD
Address: 3F, 5# Building, Maker Town, Jinwan, Zhuhai, Guangdong, 519090 China ZHUHAI Guangdong CN 519090
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.

2026-01-08Assigned to "SKYASTAR TECHNOLOGLES(ZHUHAI) LTD"
archived source →
2026-07-17Assigned to "SKYASTAR TECHNOLOGLES(ZHUHAI) LTD"

Nearby in the registry

The prefixes assigned immediately before and after 40:6E:0F:

FAQ

Which company owns MAC address prefix 40:6E:0F?: MAC address prefix 40:6E:0F is registered to SKYASTAR TECHNOLOGLES(ZHUHAI) LTD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 40:6E:0F has a network interface built by SKYASTAR TECHNOLOGLES(ZHUHAI) LTD.
What is the OUI 40:6E:0F?: 40:6E:0F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SKYASTAR TECHNOLOGLES(ZHUHAI) LTD. It covers every address from 40:6E:0F:00:00:00 to 40:6E:0F:FF:FF:FF, or 16,777,216 addresses in total. It is also written 40-6E-0F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 40:6E:0F:00:00:00 that is 40:6E:0F — 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 SKYASTAR TECHNOLOGLES(ZHUHAI) LTD located?: SKYASTAR TECHNOLOGLES(ZHUHAI) LTD is listed at 3F, 5# Building, Maker Town, Jinwan, Zhuhai, Guangdong, 519090 China ZHUHAI Guangdong CN 519090 in the IEEE OUI registry entry for 40:6E:0F. This is the address the organization registered with the IEEE, which may differ from its current operating address.