Which company owns MAC address prefix 70:2F:86?

MAC address prefix 70:2F:86 is registered to Marquardt GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:2F:86 has a network interface built by Marquardt GmbH.

What is the OUI 70:2F:86?

70:2F:86 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Marquardt GmbH. It covers every address from 70:2F:86:00:00:00 to 70:2F:86:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-2F-86.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 70:2F:86:00:00:00 that is 70:2F:86 — 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 Marquardt GmbH located?

Marquardt GmbH is listed at Schloss-Strasse 16 Rietheim-Weilheim DE 78604 in the IEEE OUI registry entry for 70:2F:86. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Marquardt GmbH

MAC address prefix 70:2F:86 is registered to Marquardt GmbH in the IEEE OUI registry. Any device whose MAC address begins with 70:2F:86 has a network interface built by Marquardt 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 70:2F:86:00:00:00 to 70:2F:86:FF:FF:FF.

OUI prefix: 70:2F:86
Hyphen form: 70-2F-86
MAC range: 70:2F:86:00:00:00 – 70:2F:86:FF:FF:FF
Addresses in block: 16,777,216
Organization: Marquardt GmbH
Address: Schloss-Strasse 16 Rietheim-Weilheim DE 78604
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 "Marquardt GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 70:2F:86:

FAQ

Which company owns MAC address prefix 70:2F:86?: MAC address prefix 70:2F:86 is registered to Marquardt GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 70:2F:86 has a network interface built by Marquardt GmbH.
What is the OUI 70:2F:86?: 70:2F:86 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Marquardt GmbH. It covers every address from 70:2F:86:00:00:00 to 70:2F:86:FF:FF:FF, or 16,777,216 addresses in total. It is also written 70-2F-86.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 70:2F:86:00:00:00 that is 70:2F:86 — 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 Marquardt GmbH located?: Marquardt GmbH is listed at Schloss-Strasse 16 Rietheim-Weilheim DE 78604 in the IEEE OUI registry entry for 70:2F:86. This is the address the organization registered with the IEEE, which may differ from its current operating address.