Which company owns MAC address prefix E0:56:94?

MAC address prefix E0:56:94 is registered to Yunhight Microelectronics in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:56:94 has a network interface built by Yunhight Microelectronics.

What is the OUI E0:56:94?

E0:56:94 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Yunhight Microelectronics. It covers every address from E0:56:94:00:00:00 to E0:56:94:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-56-94.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in E0:56:94:00:00:00 that is E0:56:94 — 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 Yunhight Microelectronics located?

Yunhight Microelectronics is listed at No. 801-31, Data Center, No. 9, Shaping Road, Guoxing Avenue, Lingang Economic Development District Yibin Sichuan CN 644000 in the IEEE OUI registry entry for E0:56:94. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Yunhight Microelectronics

MAC address prefix E0:56:94 is registered to Yunhight Microelectronics in the IEEE OUI registry. Any device whose MAC address begins with E0:56:94 has a network interface built by Yunhight Microelectronics. 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 E0:56:94:00:00:00 to E0:56:94:FF:FF:FF.

OUI prefix: E0:56:94
Hyphen form: E0-56-94
MAC range: E0:56:94:00:00:00 – E0:56:94:FF:FF:FF
Addresses in block: 16,777,216
Organization: Yunhight Microelectronics
Address: No. 801-31, Data Center, No. 9, Shaping Road, Guoxing Avenue, Lingang Economic Development District Yibin Sichuan CN 644000
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.

2023-07-11Assigned to "Yunhight Microelectronics"
archived source →
2026-07-17Assigned to "Yunhight Microelectronics"

Nearby in the registry

The prefixes assigned immediately before and after E0:56:94:

FAQ

Which company owns MAC address prefix E0:56:94?: MAC address prefix E0:56:94 is registered to Yunhight Microelectronics in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with E0:56:94 has a network interface built by Yunhight Microelectronics.
What is the OUI E0:56:94?: E0:56:94 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Yunhight Microelectronics. It covers every address from E0:56:94:00:00:00 to E0:56:94:FF:FF:FF, or 16,777,216 addresses in total. It is also written E0-56-94.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in E0:56:94:00:00:00 that is E0:56:94 — 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 Yunhight Microelectronics located?: Yunhight Microelectronics is listed at No. 801-31, Data Center, No. 9, Shaping Road, Guoxing Avenue, Lingang Economic Development District Yibin Sichuan CN 644000 in the IEEE OUI registry entry for E0:56:94. This is the address the organization registered with the IEEE, which may differ from its current operating address.