Which company owns MAC address prefix F4:2F:97?

MAC address prefix F4:2F:97 is registered to Embrava USA, Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:2F:97 has a network interface built by Embrava USA, Inc.

What is the OUI F4:2F:97?

F4:2F:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Embrava USA, Inc. It covers every address from F4:2F:97:00:00:00 to F4:2F:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-2F-97.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F4:2F:97:00:00:00 that is F4:2F:97 — 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 Embrava USA, Inc located?

Embrava USA, Inc is listed at 31 Hudson Yards, FL 11 New York NY US 10001 in the IEEE OUI registry entry for F4:2F:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Embrava USA, Inc

MAC address prefix F4:2F:97 is registered to Embrava USA, Inc in the IEEE OUI registry. Any device whose MAC address begins with F4:2F:97 has a network interface built by Embrava USA, Inc. 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 F4:2F:97:00:00:00 to F4:2F:97:FF:FF:FF.

OUI prefix: F4:2F:97
Hyphen form: F4-2F-97
MAC range: F4:2F:97:00:00:00 – F4:2F:97:FF:FF:FF
Addresses in block: 16,777,216
Organization: Embrava USA, Inc
Address: 31 Hudson Yards, FL 11 New York NY US 10001
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.

2026-06-20Assigned to "Embrava USA, Inc"
archived source →
2026-07-17Assigned to "Embrava USA, Inc"

Nearby in the registry

The prefixes assigned immediately before and after F4:2F:97:

FAQ

Which company owns MAC address prefix F4:2F:97?: MAC address prefix F4:2F:97 is registered to Embrava USA, Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:2F:97 has a network interface built by Embrava USA, Inc.
What is the OUI F4:2F:97?: F4:2F:97 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Embrava USA, Inc. It covers every address from F4:2F:97:00:00:00 to F4:2F:97:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-2F-97.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F4:2F:97:00:00:00 that is F4:2F:97 — 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 Embrava USA, Inc located?: Embrava USA, Inc is listed at 31 Hudson Yards, FL 11 New York NY US 10001 in the IEEE OUI registry entry for F4:2F:97. This is the address the organization registered with the IEEE, which may differ from its current operating address.