Which company owns MAC address prefix 30:1B:97?

MAC address prefix 30:1B:97 is registered to Lierda Science & Technology Group Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 30:1B:97 has a network interface built by Lierda Science & Technology Group Co.,Ltd.

What is the OUI 30:1B:97?

30:1B:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Lierda Science & Technology Group Co.,Ltd. It covers every address from 30:1B:97:00:00:00 to 30:1B:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written 30-1B-97.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 30:1B:97:00:00:00 that is 30:1B: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 Lierda Science & Technology Group Co.,Ltd located?

Lierda Science & Technology Group Co.,Ltd is listed at Lierda Science Park?No.1326 WenyiWestRoad Hangzhou ZheJiang CN 311121 in the IEEE OUI registry entry for 30:1B:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Lierda Science & Technology Group Co.,Ltd

MAC address prefix 30:1B:97 is registered to Lierda Science & Technology Group Co.,Ltd in the IEEE OUI registry. Any device whose MAC address begins with 30:1B:97 has a network interface built by Lierda Science & Technology Group 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 30:1B:97:00:00:00 to 30:1B:97:FF:FF:FF.

OUI prefix: 30:1B:97
Hyphen form: 30-1B-97
MAC range: 30:1B:97:00:00:00 – 30:1B:97:FF:FF:FF
Addresses in block: 16,777,216
Organization: Lierda Science & Technology Group Co.,Ltd
Address: Lierda Science Park?No.1326 WenyiWestRoad Hangzhou ZheJiang CN 311121
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.

2019-08-04Assigned to "Lierda Science & Technology Group Co.,Ltd"
archived source →
2026-07-17Assigned to "Lierda Science & Technology Group Co.,Ltd"

Nearby in the registry

The prefixes assigned immediately before and after 30:1B:97:

FAQ

Which company owns MAC address prefix 30:1B:97?: MAC address prefix 30:1B:97 is registered to Lierda Science & Technology Group Co.,Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 30:1B:97 has a network interface built by Lierda Science & Technology Group Co.,Ltd.
What is the OUI 30:1B:97?: 30:1B:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Lierda Science & Technology Group Co.,Ltd. It covers every address from 30:1B:97:00:00:00 to 30:1B:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written 30-1B-97.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 30:1B:97:00:00:00 that is 30:1B: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 Lierda Science & Technology Group Co.,Ltd located?: Lierda Science & Technology Group Co.,Ltd is listed at Lierda Science Park?No.1326 WenyiWestRoad Hangzhou ZheJiang CN 311121 in the IEEE OUI registry entry for 30:1B:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.