Which company owns MAC address prefix 38:E2:CA?

MAC address prefix 38:E2:CA is registered to Katun Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:E2:CA has a network interface built by Katun Corporation.

What is the OUI 38:E2:CA?

38:E2:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Katun Corporation. It covers every address from 38:E2:CA:00:00:00 to 38:E2:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-E2-CA.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 38:E2:CA:00:00:00 that is 38:E2:CA — 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 Katun Corporation located?

Katun Corporation is listed at 7760 France Ave S Suite 340 Bloomington MN US 55438 in the IEEE OUI registry entry for 38:E2:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Katun Corporation

MAC address prefix 38:E2:CA is registered to Katun Corporation in the IEEE OUI registry. Any device whose MAC address begins with 38:E2:CA has a network interface built by Katun Corporation. 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:E2:CA:00:00:00 to 38:E2:CA:FF:FF:FF.

OUI prefix: 38:E2:CA
Hyphen form: 38-E2-CA
MAC range: 38:E2:CA:00:00:00 – 38:E2:CA:FF:FF:FF
Addresses in block: 16,777,216
Organization: Katun Corporation
Address: 7760 France Ave S Suite 340 Bloomington MN US 55438
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 (1)

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

2026-07-17Assigned to "Katun Corporation"

Nearby in the registry

The prefixes assigned immediately before and after 38:E2:CA:

FAQ

Which company owns MAC address prefix 38:E2:CA?: MAC address prefix 38:E2:CA is registered to Katun Corporation in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 38:E2:CA has a network interface built by Katun Corporation.
What is the OUI 38:E2:CA?: 38:E2:CA is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Katun Corporation. It covers every address from 38:E2:CA:00:00:00 to 38:E2:CA:FF:FF:FF, or 16,777,216 addresses in total. It is also written 38-E2-CA.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 38:E2:CA:00:00:00 that is 38:E2:CA — 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 Katun Corporation located?: Katun Corporation is listed at 7760 France Ave S Suite 340 Bloomington MN US 55438 in the IEEE OUI registry entry for 38:E2:CA. This is the address the organization registered with the IEEE, which may differ from its current operating address.