Which company owns MAC address prefix 38:47:F2?

MAC address prefix 38:47:F2 is registered to Recogni Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:47:F2 has a network interface built by Recogni Inc.

What is the OUI 38:47:F2?

38:47:F2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Recogni Inc. It covers every address from 38:47:F2:00:00:00 to 38:47:F2:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-47-F2.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 38:47:F2:00:00:00 that is 38:47:F2 — 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 Recogni Inc located?

Recogni Inc is listed at 2590 N 1ST ST Suite 320 San Jose CA US 95131 in the IEEE OUI registry entry for 38:47:F2. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Recogni Inc own?

Recogni Inc holds 2 OUI prefixes in the IEEE registry, of which 38:47:F2 is one. A device made by Recogni Inc could carry a MAC address from any of them.

Recogni Inc

MAC address prefix 38:47:F2 is registered to Recogni Inc in the IEEE OUI registry. Any device whose MAC address begins with 38:47:F2 has a network interface built by Recogni 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 38:47:F2:00:00:00 to 38:47:F2:FF:FF:FF.

OUI prefix: 38:47:F2
Hyphen form: 38-47-F2
MAC range: 38:47:F2:00:00:00 – 38:47:F2:FF:FF:FF
Addresses in block: 16,777,216
Organization: Recogni Inc
Address: 2590 N 1ST ST Suite 320 San Jose CA US 95131
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 Recogni Inc

Recogni Inc holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

34:AF:A3

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2023-07-11Assigned to "Recogni Inc"
archived source →
2026-07-17Assigned to "Recogni Inc"

Nearby in the registry

The prefixes assigned immediately before and after 38:47:F2:

FAQ

Which company owns MAC address prefix 38:47:F2?: MAC address prefix 38:47:F2 is registered to Recogni Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:47:F2 has a network interface built by Recogni Inc.
What is the OUI 38:47:F2?: 38:47:F2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Recogni Inc. It covers every address from 38:47:F2:00:00:00 to 38:47:F2:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-47-F2.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 38:47:F2:00:00:00 that is 38:47:F2 — 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 Recogni Inc located?: Recogni Inc is listed at 2590 N 1ST ST Suite 320 San Jose CA US 95131 in the IEEE OUI registry entry for 38:47:F2. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Recogni Inc own?: Recogni Inc holds 2 OUI prefixes in the IEEE registry, of which 38:47:F2 is one. A device made by Recogni Inc could carry a MAC address from any of them.