Which company owns MAC address prefix C8:9F:42?

MAC address prefix C8:9F:42 is registered to VDII Innovation AB in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:9F:42 has a network interface built by VDII Innovation AB.

What is the OUI C8:9F:42?

C8:9F:42 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to VDII Innovation AB. It covers every address from C8:9F:42:00:00:00 to C8:9F:42:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-9F-42.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C8:9F:42:00:00:00 that is C8:9F:42 — 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 VDII Innovation AB located?

VDII Innovation AB is listed at Nedre Holländaregatan 5 Helsingborg SE 25225 in the IEEE OUI registry entry for C8:9F:42. This is the address the organization registered with the IEEE, which may differ from its current operating address.

VDII Innovation AB

MAC address prefix C8:9F:42 is registered to VDII Innovation AB in the IEEE OUI registry. Any device whose MAC address begins with C8:9F:42 has a network interface built by VDII Innovation AB. 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 C8:9F:42:00:00:00 to C8:9F:42:FF:FF:FF.

OUI prefix: C8:9F:42
Hyphen form: C8-9F-42
MAC range: C8:9F:42:00:00:00 – C8:9F:42:FF:FF:FF
Addresses in block: 16,777,216
Organization: VDII Innovation AB
Address: Nedre Holländaregatan 5 Helsingborg SE 25225
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 "VDII Innovation AB"
archived source →
2026-07-17Assigned to "VDII Innovation AB"

Nearby in the registry

The prefixes assigned immediately before and after C8:9F:42:

FAQ

Which company owns MAC address prefix C8:9F:42?: MAC address prefix C8:9F:42 is registered to VDII Innovation AB in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C8:9F:42 has a network interface built by VDII Innovation AB.
What is the OUI C8:9F:42?: C8:9F:42 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to VDII Innovation AB. It covers every address from C8:9F:42:00:00:00 to C8:9F:42:FF:FF:FF, or 16,777,216 addresses in total. It is also written C8-9F-42.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C8:9F:42:00:00:00 that is C8:9F:42 — 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 VDII Innovation AB located?: VDII Innovation AB is listed at Nedre Holländaregatan 5 Helsingborg SE 25225 in the IEEE OUI registry entry for C8:9F:42. This is the address the organization registered with the IEEE, which may differ from its current operating address.