Which company owns MAC address prefix EC:31:6D?

MAC address prefix EC:31:6D is registered to Hansgrohe in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:31:6D has a network interface built by Hansgrohe.

What is the OUI EC:31:6D?

EC:31:6D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hansgrohe. It covers every address from EC:31:6D:00:00:00 to EC:31:6D:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-31-6D.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in EC:31:6D:00:00:00 that is EC:31:6D — 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 Hansgrohe located?

Hansgrohe is listed at Auestraße 5-9 Schiltach DE 77761 in the IEEE OUI registry entry for EC:31:6D. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Hansgrohe

MAC address prefix EC:31:6D is registered to Hansgrohe in the IEEE OUI registry. Any device whose MAC address begins with EC:31:6D has a network interface built by Hansgrohe. 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 EC:31:6D:00:00:00 to EC:31:6D:FF:FF:FF.

OUI prefix: EC:31:6D
Hyphen form: EC-31-6D
MAC range: EC:31:6D:00:00:00 – EC:31:6D:FF:FF:FF
Addresses in block: 16,777,216
Organization: Hansgrohe
Address: Auestraße 5-9 Schiltach DE 77761
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.

2020-03-21Assigned to "Hansgrohe"
archived source →
2026-07-17Assigned to "Hansgrohe"

Nearby in the registry

The prefixes assigned immediately before and after EC:31:6D:

FAQ

Which company owns MAC address prefix EC:31:6D?: MAC address prefix EC:31:6D is registered to Hansgrohe in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:31:6D has a network interface built by Hansgrohe.
What is the OUI EC:31:6D?: EC:31:6D is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Hansgrohe. It covers every address from EC:31:6D:00:00:00 to EC:31:6D:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-31-6D.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in EC:31:6D:00:00:00 that is EC:31:6D — 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 Hansgrohe located?: Hansgrohe is listed at Auestraße 5-9 Schiltach DE 77761 in the IEEE OUI registry entry for EC:31:6D. This is the address the organization registered with the IEEE, which may differ from its current operating address.