Which company owns MAC address prefix B4:62:AD?

MAC address prefix B4:62:AD is registered to Elysia Germany GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B4:62:AD has a network interface built by Elysia Germany GmbH.

What is the OUI B4:62:AD?

B4:62:AD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Elysia Germany GmbH. It covers every address from B4:62:AD:00:00:00 to B4:62:AD:FF:FF:FF, or 16,777,216 addresses in total. It is also written B4-62-AD.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in B4:62:AD:00:00:00 that is B4:62:AD — 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 Elysia Germany GmbH located?

Elysia Germany GmbH is listed at Benzstr.4 Straubenhardt Baden-Wuerttemberg DE 75334 in the IEEE OUI registry entry for B4:62:AD. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Elysia Germany GmbH

MAC address prefix B4:62:AD is registered to Elysia Germany GmbH in the IEEE OUI registry. Any device whose MAC address begins with B4:62:AD has a network interface built by Elysia Germany GmbH. 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 B4:62:AD:00:00:00 to B4:62:AD:FF:FF:FF.

OUI prefix: B4:62:AD
Hyphen form: B4-62-AD
MAC range: B4:62:AD:00:00:00 – B4:62:AD:FF:FF:FF
Addresses in block: 16,777,216
Organization: Elysia Germany GmbH
Address: Benzstr.4 Straubenhardt Baden-Wuerttemberg DE 75334
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 "Elysia Germany GmbH"
archived source →
2026-07-17Assigned to "Elysia Germany GmbH"

Nearby in the registry

The prefixes assigned immediately before and after B4:62:AD:

FAQ

Which company owns MAC address prefix B4:62:AD?: MAC address prefix B4:62:AD is registered to Elysia Germany GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with B4:62:AD has a network interface built by Elysia Germany GmbH.
What is the OUI B4:62:AD?: B4:62:AD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Elysia Germany GmbH. It covers every address from B4:62:AD:00:00:00 to B4:62:AD:FF:FF:FF, or 16,777,216 addresses in total. It is also written B4-62-AD.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in B4:62:AD:00:00:00 that is B4:62:AD — 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 Elysia Germany GmbH located?: Elysia Germany GmbH is listed at Benzstr.4 Straubenhardt Baden-Wuerttemberg DE 75334 in the IEEE OUI registry entry for B4:62:AD. This is the address the organization registered with the IEEE, which may differ from its current operating address.