Which company owns MAC address prefix 80:91:2A?

MAC address prefix 80:91:2A is registered to Lih Rong electronic Enterprise Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:91:2A has a network interface built by Lih Rong electronic Enterprise Co., Ltd..

What is the OUI 80:91:2A?

80:91:2A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Lih Rong electronic Enterprise Co., Ltd.. It covers every address from 80:91:2A:00:00:00 to 80:91:2A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-91-2A.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 80:91:2A:00:00:00 that is 80:91:2A — 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 Lih Rong electronic Enterprise Co., Ltd. located?

Lih Rong electronic Enterprise Co., Ltd. is listed at 2F, No. 2, Lane 387, Hsin Shu Road Hsin Chuang Taipei TW 242 in the IEEE OUI registry entry for 80:91:2A. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Lih Rong electronic Enterprise Co., Ltd. own?

Lih Rong electronic Enterprise Co., Ltd. holds 2 OUI prefixes in the IEEE registry, of which 80:91:2A is one. A device made by Lih Rong electronic Enterprise Co., Ltd. could carry a MAC address from any of them.

Lih Rong electronic Enterprise Co., Ltd.

MAC address prefix 80:91:2A is registered to Lih Rong electronic Enterprise Co., Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 80:91:2A has a network interface built by Lih Rong electronic Enterprise 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 80:91:2A:00:00:00 to 80:91:2A:FF:FF:FF.

OUI prefix: 80:91:2A
Hyphen form: 80-91-2A
MAC range: 80:91:2A:00:00:00 – 80:91:2A:FF:FF:FF
Addresses in block: 16,777,216
Organization: Lih Rong electronic Enterprise Co., Ltd.
Address: 2F, No. 2, Lane 387, Hsin Shu Road Hsin Chuang Taipei TW 242
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.

Other prefixes from Lih Rong electronic Enterprise Co., Ltd.

Lih Rong electronic Enterprise Co., Ltd. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:23:82

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 "Lih Rong electronic Enterprise Co., Ltd."
archived source →
2026-07-17Assigned to "Lih Rong electronic Enterprise Co., Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 80:91:2A:

FAQ

Which company owns MAC address prefix 80:91:2A?: MAC address prefix 80:91:2A is registered to Lih Rong electronic Enterprise Co., Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:91:2A has a network interface built by Lih Rong electronic Enterprise Co., Ltd..
What is the OUI 80:91:2A?: 80:91:2A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Lih Rong electronic Enterprise Co., Ltd.. It covers every address from 80:91:2A:00:00:00 to 80:91:2A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-91-2A.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 80:91:2A:00:00:00 that is 80:91:2A — 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 Lih Rong electronic Enterprise Co., Ltd. located?: Lih Rong electronic Enterprise Co., Ltd. is listed at 2F, No. 2, Lane 387, Hsin Shu Road Hsin Chuang Taipei TW 242 in the IEEE OUI registry entry for 80:91:2A. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Lih Rong electronic Enterprise Co., Ltd. own?: Lih Rong electronic Enterprise Co., Ltd. holds 2 OUI prefixes in the IEEE registry, of which 80:91:2A is one. A device made by Lih Rong electronic Enterprise Co., Ltd. could carry a MAC address from any of them.