Which company owns MAC address prefix D8:25:DF?

MAC address prefix D8:25:DF is registered to CAME UK in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:25:DF has a network interface built by CAME UK.

What is the OUI D8:25:DF?

D8:25:DF is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CAME UK. It covers every address from D8:25:DF:00:00:00 to D8:25:DF:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-25-DF.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D8:25:DF:00:00:00 that is D8:25:DF — 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 CAME UK located?

CAME UK is listed at Willow Farm Business Park, 1B Sills Rd, Castle Donington, Derby DE74 2US Castle Donington West Midlands GB DE74 2US in the IEEE OUI registry entry for D8:25:DF. This is the address the organization registered with the IEEE, which may differ from its current operating address.

CAME UK

MAC address prefix D8:25:DF is registered to CAME UK in the IEEE OUI registry. Any device whose MAC address begins with D8:25:DF has a network interface built by CAME UK. 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 D8:25:DF:00:00:00 to D8:25:DF:FF:FF:FF.

OUI prefix: D8:25:DF
Hyphen form: D8-25-DF
MAC range: D8:25:DF:00:00:00 – D8:25:DF:FF:FF:FF
Addresses in block: 16,777,216
Organization: CAME UK
Address: Willow Farm Business Park, 1B Sills Rd, Castle Donington, Derby DE74 2US Castle Donington West Midlands GB DE74 2US
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.

2024-02-15Assigned to "CAME UK"
archived source →
2026-07-17Assigned to "CAME UK"

Nearby in the registry

The prefixes assigned immediately before and after D8:25:DF:

FAQ

Which company owns MAC address prefix D8:25:DF?: MAC address prefix D8:25:DF is registered to CAME UK in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D8:25:DF has a network interface built by CAME UK.
What is the OUI D8:25:DF?: D8:25:DF is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to CAME UK. It covers every address from D8:25:DF:00:00:00 to D8:25:DF:FF:FF:FF, or 16,777,216 addresses in total. It is also written D8-25-DF.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D8:25:DF:00:00:00 that is D8:25:DF — 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 CAME UK located?: CAME UK is listed at Willow Farm Business Park, 1B Sills Rd, Castle Donington, Derby DE74 2US Castle Donington West Midlands GB DE74 2US in the IEEE OUI registry entry for D8:25:DF. This is the address the organization registered with the IEEE, which may differ from its current operating address.