Which company owns MAC address prefix D0:0F:6D?

MAC address prefix D0:0F:6D is registered to T&W Electronics Company in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D0:0F:6D has a network interface built by T&W Electronics Company.

What is the OUI D0:0F:6D?

D0:0F:6D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to T&W Electronics Company. It covers every address from D0:0F:6D:00:00:00 to D0:0F:6D:FF:FF:FF, or 16,777,216 addresses in total. It is also written D0-0F-6D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D0:0F:6D:00:00:00 that is D0:0F:6D — 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 T&W Electronics Company located?

T&W Electronics Company is listed at 89# Jiang Nan RD, Lu Du Taicang Jiangsu CN 21500 in the IEEE OUI registry entry for D0:0F:6D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

T&W Electronics Company

MAC address prefix D0:0F:6D is registered to T&W Electronics Company in the IEEE OUI registry. Any device whose MAC address begins with D0:0F:6D has a network interface built by T&W Electronics Company. 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 D0:0F:6D:00:00:00 to D0:0F:6D:FF:FF:FF.

OUI prefix: D0:0F:6D
Hyphen form: D0-0F-6D
MAC range: D0:0F:6D:00:00:00 – D0:0F:6D:FF:FF:FF
Addresses in block: 16,777,216
Organization: T&W Electronics Company
Address: 89# Jiang Nan RD, Lu Du Taicang Jiangsu CN 21500
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 "T&W Electronics Company"
archived source →
2026-07-17Assigned to "T&W Electronics Company"

Nearby in the registry

The prefixes assigned immediately before and after D0:0F:6D:

FAQ

Which company owns MAC address prefix D0:0F:6D?: MAC address prefix D0:0F:6D is registered to T&W Electronics Company in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D0:0F:6D has a network interface built by T&W Electronics Company.
What is the OUI D0:0F:6D?: D0:0F:6D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to T&W Electronics Company. It covers every address from D0:0F:6D:00:00:00 to D0:0F:6D:FF:FF:FF, or 16,777,216 addresses in total. It is also written D0-0F-6D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D0:0F:6D:00:00:00 that is D0:0F:6D — 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 T&W Electronics Company located?: T&W Electronics Company is listed at 89# Jiang Nan RD, Lu Du Taicang Jiangsu CN 21500 in the IEEE OUI registry entry for D0:0F:6D. This is the address the organization registered with the IEEE, which may differ from its current operating address.