Which company owns MAC address prefix 98:02:84?

MAC address prefix 98:02:84 is registered to Theobroma Systems GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:02:84 has a network interface built by Theobroma Systems GmbH.

What is the OUI 98:02:84?

98:02:84 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Theobroma Systems GmbH. It covers every address from 98:02:84:00:00:00 to 98:02:84:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-02-84.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 98:02:84:00:00:00 that is 98:02:84 — 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 Theobroma Systems GmbH located?

Theobroma Systems GmbH is listed at Gutheil-Schoder Gasse 17 Wien US 1230 in the IEEE OUI registry entry for 98:02:84. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Theobroma Systems GmbH

MAC address prefix 98:02:84 is registered to Theobroma Systems GmbH in the IEEE OUI registry. Any device whose MAC address begins with 98:02:84 has a network interface built by Theobroma Systems 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 98:02:84:00:00:00 to 98:02:84:FF:FF:FF.

OUI prefix: 98:02:84
Hyphen form: 98-02-84
MAC range: 98:02:84:00:00:00 – 98:02:84:FF:FF:FF
Addresses in block: 16,777,216
Organization: Theobroma Systems GmbH
Address: Gutheil-Schoder Gasse 17 Wien US 1230
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 "Theobroma Systems GmbH"
archived source →
2026-07-17Assigned to "Theobroma Systems GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 98:02:84:

FAQ

Which company owns MAC address prefix 98:02:84?: MAC address prefix 98:02:84 is registered to Theobroma Systems GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 98:02:84 has a network interface built by Theobroma Systems GmbH.
What is the OUI 98:02:84?: 98:02:84 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Theobroma Systems GmbH. It covers every address from 98:02:84:00:00:00 to 98:02:84:FF:FF:FF, or 16,777,216 addresses in total. It is also written 98-02-84.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 98:02:84:00:00:00 that is 98:02:84 — 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 Theobroma Systems GmbH located?: Theobroma Systems GmbH is listed at Gutheil-Schoder Gasse 17 Wien US 1230 in the IEEE OUI registry entry for 98:02:84. This is the address the organization registered with the IEEE, which may differ from its current operating address.