Which company owns MAC address prefix 94:21:97?

MAC address prefix 94:21:97 is registered to Stalmart Technology Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:21:97 has a network interface built by Stalmart Technology Limited.

What is the OUI 94:21:97?

94:21:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Stalmart Technology Limited. It covers every address from 94:21:97:00:00:00 to 94:21:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-21-97.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 94:21:97:00:00:00 that is 94:21:97 — 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 Stalmart Technology Limited located?

Stalmart Technology Limited is listed at Rm1106-1107E, Building F, Xihaimingzhu, No.1, Taoyuan Road Shenzhen Gunagdong CN 518052 in the IEEE OUI registry entry for 94:21:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Stalmart Technology Limited

MAC address prefix 94:21:97 is registered to Stalmart Technology Limited in the IEEE OUI registry. Any device whose MAC address begins with 94:21:97 has a network interface built by Stalmart Technology Limited. 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 94:21:97:00:00:00 to 94:21:97:FF:FF:FF.

OUI prefix: 94:21:97
Hyphen form: 94-21-97
MAC range: 94:21:97:00:00:00 – 94:21:97:FF:FF:FF
Addresses in block: 16,777,216
Organization: Stalmart Technology Limited
Address: Rm1106-1107E, Building F, Xihaimingzhu, No.1, Taoyuan Road Shenzhen Gunagdong CN 518052
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 "Stalmart Technology Limited"
archived source →
2026-07-17Assigned to "Stalmart Technology Limited"

Nearby in the registry

The prefixes assigned immediately before and after 94:21:97:

FAQ

Which company owns MAC address prefix 94:21:97?: MAC address prefix 94:21:97 is registered to Stalmart Technology Limited in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:21:97 has a network interface built by Stalmart Technology Limited.
What is the OUI 94:21:97?: 94:21:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Stalmart Technology Limited. It covers every address from 94:21:97:00:00:00 to 94:21:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-21-97.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 94:21:97:00:00:00 that is 94:21:97 — 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 Stalmart Technology Limited located?: Stalmart Technology Limited is listed at Rm1106-1107E, Building F, Xihaimingzhu, No.1, Taoyuan Road Shenzhen Gunagdong CN 518052 in the IEEE OUI registry entry for 94:21:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.