Which company owns MAC address prefix 84:85:0A?

MAC address prefix 84:85:0A is registered to Hella Sonnen- und Wetterschutztechnik GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:85:0A has a network interface built by Hella Sonnen- und Wetterschutztechnik GmbH.

What is the OUI 84:85:0A?

84:85:0A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hella Sonnen- und Wetterschutztechnik GmbH. It covers every address from 84:85:0A:00:00:00 to 84:85:0A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-85-0A.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 84:85:0A:00:00:00 that is 84:85:0A — 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 Hella Sonnen- und Wetterschutztechnik GmbH located?

Hella Sonnen- und Wetterschutztechnik GmbH is listed at Abfaltersbach 125 Abfaltersbach Tirol AT 9913 in the IEEE OUI registry entry for 84:85:0A. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hella Sonnen- und Wetterschutztechnik GmbH

MAC address prefix 84:85:0A is registered to Hella Sonnen- und Wetterschutztechnik GmbH in the IEEE OUI registry. Any device whose MAC address begins with 84:85:0A has a network interface built by Hella Sonnen- und Wetterschutztechnik 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 84:85:0A:00:00:00 to 84:85:0A:FF:FF:FF.

OUI prefix: 84:85:0A
Hyphen form: 84-85-0A
MAC range: 84:85:0A:00:00:00 – 84:85:0A:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hella Sonnen- und Wetterschutztechnik GmbH
Address: Abfaltersbach 125 Abfaltersbach Tirol AT 9913
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 "Hella Sonnen- und Wetterschutztechnik GmbH"
archived source →
2026-07-17Assigned to "Hella Sonnen- und Wetterschutztechnik GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 84:85:0A:

FAQ

Which company owns MAC address prefix 84:85:0A?: MAC address prefix 84:85:0A is registered to Hella Sonnen- und Wetterschutztechnik GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 84:85:0A has a network interface built by Hella Sonnen- und Wetterschutztechnik GmbH.
What is the OUI 84:85:0A?: 84:85:0A is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hella Sonnen- und Wetterschutztechnik GmbH. It covers every address from 84:85:0A:00:00:00 to 84:85:0A:FF:FF:FF, or 16,777,216 addresses in total. It is also written 84-85-0A.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 84:85:0A:00:00:00 that is 84:85:0A — 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 Hella Sonnen- und Wetterschutztechnik GmbH located?: Hella Sonnen- und Wetterschutztechnik GmbH is listed at Abfaltersbach 125 Abfaltersbach Tirol AT 9913 in the IEEE OUI registry entry for 84:85:0A. This is the address the organization registered with the IEEE, which may differ from its current operating address.