Which company owns MAC address prefix C4:29:96?

MAC address prefix C4:29:96 is registered to Signify B.V. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C4:29:96 has a network interface built by Signify B.V..

What is the OUI C4:29:96?

C4:29:96 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Signify B.V.. It covers every address from C4:29:96:00:00:00 to C4:29:96:FF:FF:FF, or 16,777,216 addresses in total. It is also written C4-29-96.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C4:29:96:00:00:00 that is C4:29:96 — 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 Signify B.V. located?

Signify B.V. is listed at High Tech Campus 7 Eindhoven NL 5656AE in the IEEE OUI registry entry for C4:29:96. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Signify B.V. own?

Signify B.V. holds 2 OUI prefixes in the IEEE registry, of which C4:29:96 is one. A device made by Signify B.V. could carry a MAC address from any of them.

Signify B.V.

MAC address prefix C4:29:96 is registered to Signify B.V. in the IEEE OUI registry. Any device whose MAC address begins with C4:29:96 has a network interface built by Signify B.V.. 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 C4:29:96:00:00:00 to C4:29:96:FF:FF:FF.

OUI prefix: C4:29:96
Hyphen form: C4-29-96
MAC range: C4:29:96:00:00:00 – C4:29:96:FF:FF:FF
Addresses in block: 16,777,216
Organization: Signify B.V.
Address: High Tech Campus 7 Eindhoven NL 5656AE
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.

Other prefixes from Signify B.V.

Signify B.V. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

FC:26:8C

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2019-07-04Assigned to "Signify B.V."
archived source →
2026-07-17Assigned to "Signify B.V."

Nearby in the registry

The prefixes assigned immediately before and after C4:29:96:

FAQ

Which company owns MAC address prefix C4:29:96?: MAC address prefix C4:29:96 is registered to Signify B.V. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C4:29:96 has a network interface built by Signify B.V..
What is the OUI C4:29:96?: C4:29:96 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Signify B.V.. It covers every address from C4:29:96:00:00:00 to C4:29:96:FF:FF:FF, or 16,777,216 addresses in total. It is also written C4-29-96.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C4:29:96:00:00:00 that is C4:29:96 — 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 Signify B.V. located?: Signify B.V. is listed at High Tech Campus 7 Eindhoven NL 5656AE in the IEEE OUI registry entry for C4:29:96. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Signify B.V. own?: Signify B.V. holds 2 OUI prefixes in the IEEE registry, of which C4:29:96 is one. A device made by Signify B.V. could carry a MAC address from any of them.