Which company owns MAC address prefix DC:2D:DE?

MAC address prefix DC:2D:DE is registered to Illucere Srl in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:2D:DE has a network interface built by Illucere Srl.

What is the OUI DC:2D:DE?

DC:2D:DE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Illucere Srl. It covers every address from DC:2D:DE:00:00:00 to DC:2D:DE:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-2D-DE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:2D:DE:00:00:00 that is DC:2D: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 Illucere Srl located?

Illucere Srl is listed at Via Primo Maggio 1 Mestrino PD IT 35035 in the IEEE OUI registry entry for DC:2D:DE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Illucere Srl

MAC address prefix DC:2D:DE is registered to Illucere Srl in the IEEE OUI registry. Any device whose MAC address begins with DC:2D:DE has a network interface built by Illucere Srl. 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 DC:2D:DE:00:00:00 to DC:2D:DE:FF:FF:FF.

OUI prefix: DC:2D:DE
Hyphen form: DC-2D-DE
MAC range: DC:2D:DE:00:00:00 – DC:2D:DE:FF:FF:FF
Addresses in block: 16,777,216
Organization: Illucere Srl
Address: Via Primo Maggio 1 Mestrino PD IT 35035
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 (3)

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

2023-07-11Assigned to "Ledworks SRL"
archived source →
2026-06-20Renamed from "Ledworks SRL" to "Illucere Srl"
archived source →
2026-07-17Assigned to "Illucere Srl"

Nearby in the registry

The prefixes assigned immediately before and after DC:2D:DE:

FAQ

Which company owns MAC address prefix DC:2D:DE?: MAC address prefix DC:2D:DE is registered to Illucere Srl in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:2D:DE has a network interface built by Illucere Srl.
What is the OUI DC:2D:DE?: DC:2D:DE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Illucere Srl. It covers every address from DC:2D:DE:00:00:00 to DC:2D:DE:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-2D-DE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:2D:DE:00:00:00 that is DC:2D: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 Illucere Srl located?: Illucere Srl is listed at Via Primo Maggio 1 Mestrino PD IT 35035 in the IEEE OUI registry entry for DC:2D:DE. This is the address the organization registered with the IEEE, which may differ from its current operating address.