Which company owns MAC address prefix D8:1E:DE?

MAC address prefix D8:1E:DE is registered to B&W Group Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:1E:DE has a network interface built by B&W Group Ltd.

What is the OUI D8:1E:DE?

D8:1E:DE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to B&W Group Ltd. It covers every address from D8:1E:DE:00:00:00 to D8:1E:DE:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-1E-DE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D8:1E:DE:00:00:00 that is D8:1E:DE — 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 B&W Group Ltd located?

B&W Group Ltd is listed at 5070 Francois Cusson Lachine Quebec CA H8T1B3 in the IEEE OUI registry entry for D8:1E:DE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

B&W Group Ltd

MAC address prefix D8:1E:DE is registered to B&W Group Ltd in the IEEE OUI registry. Any device whose MAC address begins with D8:1E:DE has a network interface built by B&W Group 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 D8:1E:DE:00:00:00 to D8:1E:DE:FF:FF:FF.

OUI prefix: D8:1E:DE
Hyphen form: D8-1E-DE
MAC range: D8:1E:DE:00:00:00 – D8:1E:DE:FF:FF:FF
Addresses in block: 16,777,216
Organization: B&W Group Ltd
Address: 5070 Francois Cusson Lachine Quebec CA H8T1B3
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 "B&W Group Ltd"
archived source →
2026-07-17Assigned to "B&W Group Ltd"

Nearby in the registry

The prefixes assigned immediately before and after D8:1E:DE:

FAQ

Which company owns MAC address prefix D8:1E:DE?: MAC address prefix D8:1E:DE is registered to B&W Group Ltd in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:1E:DE has a network interface built by B&W Group Ltd.
What is the OUI D8:1E:DE?: D8:1E:DE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to B&W Group Ltd. It covers every address from D8:1E:DE:00:00:00 to D8:1E:DE:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-1E-DE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D8:1E:DE:00:00:00 that is D8:1E:DE — 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 B&W Group Ltd located?: B&W Group Ltd is listed at 5070 Francois Cusson Lachine Quebec CA H8T1B3 in the IEEE OUI registry entry for D8:1E:DE. This is the address the organization registered with the IEEE, which may differ from its current operating address.