Which company owns MAC address prefix EC:2A:F0?

MAC address prefix EC:2A:F0 is registered to Ypsomed AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:2A:F0 has a network interface built by Ypsomed AG.

What is the OUI EC:2A:F0?

EC:2A:F0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Ypsomed AG. It covers every address from EC:2A:F0:00:00:00 to EC:2A:F0:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-2A-F0.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in EC:2A:F0:00:00:00 that is EC:2A:F0 — 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 Ypsomed AG located?

Ypsomed AG is listed at Brunnmattstrasse 6 Burgdorf BE CH 3400 in the IEEE OUI registry entry for EC:2A:F0. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Ypsomed AG

MAC address prefix EC:2A:F0 is registered to Ypsomed AG in the IEEE OUI registry. Any device whose MAC address begins with EC:2A:F0 has a network interface built by Ypsomed 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 EC:2A:F0:00:00:00 to EC:2A:F0:FF:FF:FF.

OUI prefix: EC:2A:F0
Hyphen form: EC-2A-F0
MAC range: EC:2A:F0:00:00:00 – EC:2A:F0:FF:FF:FF
Addresses in block: 16,777,216
Organization: Ypsomed AG
Address: Brunnmattstrasse 6 Burgdorf BE CH 3400
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 "Ypsomed AG"
archived source →
2026-07-17Assigned to "Ypsomed AG"

Nearby in the registry

The prefixes assigned immediately before and after EC:2A:F0:

FAQ

Which company owns MAC address prefix EC:2A:F0?: MAC address prefix EC:2A:F0 is registered to Ypsomed AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with EC:2A:F0 has a network interface built by Ypsomed AG.
What is the OUI EC:2A:F0?: EC:2A:F0 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Ypsomed AG. It covers every address from EC:2A:F0:00:00:00 to EC:2A:F0:FF:FF:FF, or 16,777,216 addresses in total. It is also written EC-2A-F0.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in EC:2A:F0:00:00:00 that is EC:2A:F0 — 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 Ypsomed AG located?: Ypsomed AG is listed at Brunnmattstrasse 6 Burgdorf BE CH 3400 in the IEEE OUI registry entry for EC:2A:F0. This is the address the organization registered with the IEEE, which may differ from its current operating address.