Which company owns MAC address prefix F4:36:E1?

MAC address prefix F4:36:E1 is registered to Abilis Systems SARL in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:36:E1 has a network interface built by Abilis Systems SARL.

What is the OUI F4:36:E1?

F4:36:E1 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Abilis Systems SARL. It covers every address from F4:36:E1:00:00:00 to F4:36:E1:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-36-E1.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in F4:36:E1:00:00:00 that is F4:36:E1 — 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 Abilis Systems SARL located?

Abilis Systems SARL is listed at 3, chemin Pré Fleuri Plan-Les-Ouates Geneva CH 1228 in the IEEE OUI registry entry for F4:36:E1. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Abilis Systems SARL

MAC address prefix F4:36:E1 is registered to Abilis Systems SARL in the IEEE OUI registry. Any device whose MAC address begins with F4:36:E1 has a network interface built by Abilis Systems SARL. 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 F4:36:E1:00:00:00 to F4:36:E1:FF:FF:FF.

OUI prefix: F4:36:E1
Hyphen form: F4-36-E1
MAC range: F4:36:E1:00:00:00 – F4:36:E1:FF:FF:FF
Addresses in block: 16,777,216
Organization: Abilis Systems SARL
Address: 3, chemin Pré Fleuri Plan-Les-Ouates Geneva CH 1228
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 "Abilis Systems SARL"
archived source →
2026-07-17Assigned to "Abilis Systems SARL"

Nearby in the registry

The prefixes assigned immediately before and after F4:36:E1:

FAQ

Which company owns MAC address prefix F4:36:E1?: MAC address prefix F4:36:E1 is registered to Abilis Systems SARL in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with F4:36:E1 has a network interface built by Abilis Systems SARL.
What is the OUI F4:36:E1?: F4:36:E1 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Abilis Systems SARL. It covers every address from F4:36:E1:00:00:00 to F4:36:E1:FF:FF:FF, or 16,777,216 addresses in total. It is also written F4-36-E1.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in F4:36:E1:00:00:00 that is F4:36:E1 — 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 Abilis Systems SARL located?: Abilis Systems SARL is listed at 3, chemin Pré Fleuri Plan-Les-Ouates Geneva CH 1228 in the IEEE OUI registry entry for F4:36:E1. This is the address the organization registered with the IEEE, which may differ from its current operating address.