Which company owns MAC address prefix 20:12:D5?

MAC address prefix 20:12:D5 is registered to Scientech Materials Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:12:D5 has a network interface built by Scientech Materials Corporation.

What is the OUI 20:12:D5?

20:12:D5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Scientech Materials Corporation. It covers every address from 20:12:D5:00:00:00 to 20:12:D5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-12-D5.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 20:12:D5:00:00:00 that is 20:12:D5 — 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 Scientech Materials Corporation located?

Scientech Materials Corporation is listed at No.7, Hejiang 2nd Rd., Chungli , Taoyuan Hsien 320, Taiwan Taoyuan Hsien Chungli TW 320 in the IEEE OUI registry entry for 20:12:D5. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Scientech Materials Corporation

MAC address prefix 20:12:D5 is registered to Scientech Materials Corporation in the IEEE OUI registry. Any device whose MAC address begins with 20:12:D5 has a network interface built by Scientech Materials Corporation. 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 20:12:D5:00:00:00 to 20:12:D5:FF:FF:FF.

OUI prefix: 20:12:D5
Hyphen form: 20-12-D5
MAC range: 20:12:D5:00:00:00 – 20:12:D5:FF:FF:FF
Addresses in block: 16,777,216
Organization: Scientech Materials Corporation
Address: No.7, Hejiang 2nd Rd., Chungli , Taoyuan Hsien 320, Taiwan Taoyuan Hsien Chungli TW 320
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 "Scientech Materials Corporation"
archived source →
2026-07-17Assigned to "Scientech Materials Corporation"

Nearby in the registry

The prefixes assigned immediately before and after 20:12:D5:

FAQ

Which company owns MAC address prefix 20:12:D5?: MAC address prefix 20:12:D5 is registered to Scientech Materials Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 20:12:D5 has a network interface built by Scientech Materials Corporation.
What is the OUI 20:12:D5?: 20:12:D5 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Scientech Materials Corporation. It covers every address from 20:12:D5:00:00:00 to 20:12:D5:FF:FF:FF, or 16,777,216 addresses in total. It is also written 20-12-D5.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 20:12:D5:00:00:00 that is 20:12:D5 — 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 Scientech Materials Corporation located?: Scientech Materials Corporation is listed at No.7, Hejiang 2nd Rd., Chungli , Taoyuan Hsien 320, Taiwan Taoyuan Hsien Chungli TW 320 in the IEEE OUI registry entry for 20:12:D5. This is the address the organization registered with the IEEE, which may differ from its current operating address.