Which company owns MAC address prefix 80:2F:DE?

MAC address prefix 80:2F:DE is registered to Zurich Instruments AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:2F:DE has a network interface built by Zurich Instruments AG.

What is the OUI 80:2F:DE?

80:2F:DE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zurich Instruments AG. It covers every address from 80:2F:DE:00:00:00 to 80:2F:DE:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-2F-DE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 80:2F:DE:00:00:00 that is 80:2F:DE — 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 Zurich Instruments AG located?

Zurich Instruments AG is listed at Technoparkstrasse 1 Zurich CH 8005 in the IEEE OUI registry entry for 80:2F:DE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Zurich Instruments AG

MAC address prefix 80:2F:DE is registered to Zurich Instruments AG in the IEEE OUI registry. Any device whose MAC address begins with 80:2F:DE has a network interface built by Zurich Instruments AG. 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 80:2F:DE:00:00:00 to 80:2F:DE:FF:FF:FF.

OUI prefix: 80:2F:DE
Hyphen form: 80-2F-DE
MAC range: 80:2F:DE:00:00:00 – 80:2F:DE:FF:FF:FF
Addresses in block: 16,777,216
Organization: Zurich Instruments AG
Address: Technoparkstrasse 1 Zurich CH 8005
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 "Zurich Instruments AG"
archived source →
2026-07-17Assigned to "Zurich Instruments AG"

Nearby in the registry

The prefixes assigned immediately before and after 80:2F:DE:

FAQ

Which company owns MAC address prefix 80:2F:DE?: MAC address prefix 80:2F:DE is registered to Zurich Instruments AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 80:2F:DE has a network interface built by Zurich Instruments AG.
What is the OUI 80:2F:DE?: 80:2F:DE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Zurich Instruments AG. It covers every address from 80:2F:DE:00:00:00 to 80:2F:DE:FF:FF:FF, or 16,777,216 addresses in total. It is also written 80-2F-DE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 80:2F:DE:00:00:00 that is 80:2F:DE — 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 Zurich Instruments AG located?: Zurich Instruments AG is listed at Technoparkstrasse 1 Zurich CH 8005 in the IEEE OUI registry entry for 80:2F:DE. This is the address the organization registered with the IEEE, which may differ from its current operating address.