Which company owns MAC address prefix 7C:71:76?

MAC address prefix 7C:71:76 is registered to Wuxi iData Technology Company Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 7C:71:76 has a network interface built by Wuxi iData Technology Company Ltd..

What is the OUI 7C:71:76?

7C:71:76 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Wuxi iData Technology Company Ltd.. It covers every address from 7C:71:76:00:00:00 to 7C:71:76:FF:FF:FF, or 16,777,216 addresses in total. It is also written 7C-71-76.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 7C:71:76:00:00:00 that is 7C:71:76 — 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 Wuxi iData Technology Company Ltd. located?

Wuxi iData Technology Company Ltd. is listed at Floor 11, Building B1, Wuxi(Binhu) National Sensing Information Center, No. 999 Gaolang East Road, Wuxi City, Jiangsu Province, P.R.C. Wuxi Jiangsu CN 214131 in the IEEE OUI registry entry for 7C:71:76. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Wuxi iData Technology Company Ltd.

MAC address prefix 7C:71:76 is registered to Wuxi iData Technology Company Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 7C:71:76 has a network interface built by Wuxi iData Technology Company 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 7C:71:76:00:00:00 to 7C:71:76:FF:FF:FF.

OUI prefix: 7C:71:76
Hyphen form: 7C-71-76
MAC range: 7C:71:76:00:00:00 – 7C:71:76:FF:FF:FF
Addresses in block: 16,777,216
Organization: Wuxi iData Technology Company Ltd.
Address: Floor 11, Building B1, Wuxi(Binhu) National Sensing Information Center, No. 999 Gaolang East Road, Wuxi City, Jiangsu Province, P.R.C. Wuxi Jiangsu CN 214131
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.

2016-07-29Assigned to "Wuxi iData Technology Company Ltd."
archived source →
2026-07-17Assigned to "Wuxi iData Technology Company Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 7C:71:76:

FAQ

Which company owns MAC address prefix 7C:71:76?: MAC address prefix 7C:71:76 is registered to Wuxi iData Technology Company Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 7C:71:76 has a network interface built by Wuxi iData Technology Company Ltd..
What is the OUI 7C:71:76?: 7C:71:76 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Wuxi iData Technology Company Ltd.. It covers every address from 7C:71:76:00:00:00 to 7C:71:76:FF:FF:FF, or 16,777,216 addresses in total. It is also written 7C-71-76.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 7C:71:76:00:00:00 that is 7C:71:76 — 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 Wuxi iData Technology Company Ltd. located?: Wuxi iData Technology Company Ltd. is listed at Floor 11, Building B1, Wuxi(Binhu) National Sensing Information Center, No. 999 Gaolang East Road, Wuxi City, Jiangsu Province, P.R.C. Wuxi Jiangsu CN 214131 in the IEEE OUI registry entry for 7C:71:76. This is the address the organization registered with the IEEE, which may differ from its current operating address.