Which company owns MAC address prefix 00:23:3E?

MAC address prefix 00:23:3E is registered to Alcatel-Lucent IPD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:23:3E has a network interface built by Alcatel-Lucent IPD.

What is the OUI 00:23:3E?

00:23:3E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alcatel-Lucent IPD. It covers every address from 00:23:3E:00:00:00 to 00:23:3E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-23-3E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:23:3E:00:00:00 that is 00:23:3E — 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 IPD located?

Alcatel-Lucent IPD is listed at 701 E. Middlefield Rd. Mountain View CA US 94043 in the IEEE OUI registry entry for 00:23:3E. 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 IPD own?

Alcatel-Lucent IPD holds 11 OUI prefixes in the IEEE registry, of which 00:23:3E is one. A device made by Alcatel-Lucent IPD could carry a MAC address from any of them.

Alcatel-Lucent IPD

MAC address prefix 00:23:3E is registered to Alcatel-Lucent IPD in the IEEE OUI registry. Any device whose MAC address begins with 00:23:3E has a network interface built by Alcatel-Lucent IPD. 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 00:23:3E:00:00:00 to 00:23:3E:FF:FF:FF.

OUI prefix: 00:23:3E
Hyphen form: 00-23-3E
MAC range: 00:23:3E:00:00:00 – 00:23:3E:FF:FF:FF
Addresses in block: 16,777,216
Organization: Alcatel-Lucent IPD
Address: 701 E. Middlefield Rd. Mountain View CA US 94043
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 IPD

Alcatel-Lucent IPD holds 11 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

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 "Alcatel-Lucent IPD"
archived source →
2026-07-17Assigned to "Alcatel-Lucent IPD"

Nearby in the registry

The prefixes assigned immediately before and after 00:23:3E:

FAQ

Which company owns MAC address prefix 00:23:3E?: MAC address prefix 00:23:3E is registered to Alcatel-Lucent IPD in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:23:3E has a network interface built by Alcatel-Lucent IPD.
What is the OUI 00:23:3E?: 00:23:3E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Alcatel-Lucent IPD. It covers every address from 00:23:3E:00:00:00 to 00:23:3E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-23-3E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:23:3E:00:00:00 that is 00:23:3E — 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 IPD located?: Alcatel-Lucent IPD is listed at 701 E. Middlefield Rd. Mountain View CA US 94043 in the IEEE OUI registry entry for 00:23:3E. 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 IPD own?: Alcatel-Lucent IPD holds 11 OUI prefixes in the IEEE registry, of which 00:23:3E is one. A device made by Alcatel-Lucent IPD could carry a MAC address from any of them.