Which company owns MAC address prefix 90:79:90?

MAC address prefix 90:79:90 is registered to Benchmark Electronics Romania SRL in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 90:79:90 has a network interface built by Benchmark Electronics Romania SRL.

What is the OUI 90:79:90?

90:79:90 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Benchmark Electronics Romania SRL. It covers every address from 90:79:90:00:00:00 to 90:79:90:FF:FF:FF, or 16,777,216 addresses in total. It is also written 90-79-90.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 90:79:90:00:00:00 that is 90:79:90 — 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 Benchmark Electronics Romania SRL located?

Benchmark Electronics Romania SRL is listed at Aeroportului no 6 Ghimbav Brasov US 507075 in the IEEE OUI registry entry for 90:79:90. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Benchmark Electronics Romania SRL

MAC address prefix 90:79:90 is registered to Benchmark Electronics Romania SRL in the IEEE OUI registry. Any device whose MAC address begins with 90:79:90 has a network interface built by Benchmark Electronics Romania 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 90:79:90:00:00:00 to 90:79:90:FF:FF:FF.

OUI prefix: 90:79:90
Hyphen form: 90-79-90
MAC range: 90:79:90:00:00:00 – 90:79:90:FF:FF:FF
Addresses in block: 16,777,216
Organization: Benchmark Electronics Romania SRL
Address: Aeroportului no 6 Ghimbav Brasov US 507075
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 (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 "Benchmark Electronics Romania SRL"
archived source →
2026-07-17Assigned to "Benchmark Electronics Romania SRL"

Nearby in the registry

The prefixes assigned immediately before and after 90:79:90:

FAQ

Which company owns MAC address prefix 90:79:90?: MAC address prefix 90:79:90 is registered to Benchmark Electronics Romania SRL in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 90:79:90 has a network interface built by Benchmark Electronics Romania SRL.
What is the OUI 90:79:90?: 90:79:90 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Benchmark Electronics Romania SRL. It covers every address from 90:79:90:00:00:00 to 90:79:90:FF:FF:FF, or 16,777,216 addresses in total. It is also written 90-79-90.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 90:79:90:00:00:00 that is 90:79:90 — 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 Benchmark Electronics Romania SRL located?: Benchmark Electronics Romania SRL is listed at Aeroportului no 6 Ghimbav Brasov US 507075 in the IEEE OUI registry entry for 90:79:90. This is the address the organization registered with the IEEE, which may differ from its current operating address.