Which company owns MAC address prefix 00:03:74?

MAC address prefix 00:03:74 is registered to Schneider Electric in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:03:74 has a network interface built by Schneider Electric.

What is the OUI 00:03:74?

00:03:74 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Schneider Electric. It covers every address from 00:03:74:00:00:00 to 00:03:74:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-03-74.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:03:74:00:00:00 that is 00:03:74 — 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 Schneider Electric located?

Schneider Electric is listed at 35 Rue Joseph Monier Rueil-Malmaison CA 92500 in the IEEE OUI registry entry for 00:03:74. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Schneider Electric own?

Schneider Electric holds 7 OUI prefixes in the IEEE registry, of which 00:03:74 is one. A device made by Schneider Electric could carry a MAC address from any of them.

Schneider Electric

MAC address prefix 00:03:74 is registered to Schneider Electric in the IEEE OUI registry. Any device whose MAC address begins with 00:03:74 has a network interface built by Schneider Electric. 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 00:03:74:00:00:00 to 00:03:74:FF:FF:FF.

OUI prefix: 00:03:74
Hyphen form: 00-03-74
MAC range: 00:03:74:00:00:00 – 00:03:74:FF:FF:FF
Addresses in block: 16,777,216
Organization: Schneider Electric
Address: 35 Rue Joseph Monier Rueil-Malmaison CA 92500
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 Schneider Electric

Schneider Electric holds 7 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 "Control Microsystems"
archived source →
2026-06-20Renamed from "Control Microsystems" to "Schneider Electric"
archived source →
2026-07-17Assigned to "Schneider Electric"

Nearby in the registry

The prefixes assigned immediately before and after 00:03:74:

FAQ

Which company owns MAC address prefix 00:03:74?: MAC address prefix 00:03:74 is registered to Schneider Electric in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:03:74 has a network interface built by Schneider Electric.
What is the OUI 00:03:74?: 00:03:74 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Schneider Electric. It covers every address from 00:03:74:00:00:00 to 00:03:74:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-03-74.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:03:74:00:00:00 that is 00:03:74 — 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 Schneider Electric located?: Schneider Electric is listed at 35 Rue Joseph Monier Rueil-Malmaison CA 92500 in the IEEE OUI registry entry for 00:03:74. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Schneider Electric own?: Schneider Electric holds 7 OUI prefixes in the IEEE registry, of which 00:03:74 is one. A device made by Schneider Electric could carry a MAC address from any of them.