Which company owns MAC address prefix 00:20:DA?

MAC address prefix 00:20:DA is registered to Alcatel-Lucent Enterprise in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:20:DA has a network interface built by Alcatel-Lucent Enterprise.

What is the OUI 00:20:DA?

00:20:DA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alcatel-Lucent Enterprise. It covers every address from 00:20:DA:00:00:00 to 00:20:DA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-20-DA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:20:DA:00:00:00 that is 00:20:DA — 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 Alcatel-Lucent Enterprise located?

Alcatel-Lucent Enterprise is listed at 26801 West Agoura Road CALABASAS CA US 91301 in the IEEE OUI registry entry for 00:20:DA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Alcatel-Lucent Enterprise own?

Alcatel-Lucent Enterprise holds 12 OUI prefixes in the IEEE registry, of which 00:20:DA is one. A device made by Alcatel-Lucent Enterprise could carry a MAC address from any of them.

Alcatel-Lucent Enterprise

MAC address prefix 00:20:DA is registered to Alcatel-Lucent Enterprise in the IEEE OUI registry. Any device whose MAC address begins with 00:20:DA has a network interface built by Alcatel-Lucent Enterprise. 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 00:20:DA:00:00:00 to 00:20:DA:FF:FF:FF.

OUI prefix: 00:20:DA
Hyphen form: 00-20-DA
MAC range: 00:20:DA:00:00:00 – 00:20:DA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Alcatel-Lucent Enterprise
Address: 26801 West Agoura Road CALABASAS CA US 91301
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 Alcatel-Lucent Enterprise

Alcatel-Lucent Enterprise holds 12 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (3)

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 "Alcatel North America ESD"
archived source →
2017-09-08Renamed from "Alcatel North America ESD" to "Alcatel-Lucent Enterprise"
archived source →
2026-07-17Assigned to "Alcatel-Lucent Enterprise"

Nearby in the registry

The prefixes assigned immediately before and after 00:20:DA:

FAQ

Which company owns MAC address prefix 00:20:DA?: MAC address prefix 00:20:DA is registered to Alcatel-Lucent Enterprise in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:20:DA has a network interface built by Alcatel-Lucent Enterprise.
What is the OUI 00:20:DA?: 00:20:DA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alcatel-Lucent Enterprise. It covers every address from 00:20:DA:00:00:00 to 00:20:DA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-20-DA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:20:DA:00:00:00 that is 00:20:DA — 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 Alcatel-Lucent Enterprise located?: Alcatel-Lucent Enterprise is listed at 26801 West Agoura Road CALABASAS CA US 91301 in the IEEE OUI registry entry for 00:20:DA. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Alcatel-Lucent Enterprise own?: Alcatel-Lucent Enterprise holds 12 OUI prefixes in the IEEE registry, of which 00:20:DA is one. A device made by Alcatel-Lucent Enterprise could carry a MAC address from any of them.