Which company owns MAC address prefix AC:17:02?

MAC address prefix AC:17:02 is registered to Fibar Group sp. z o.o. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:17:02 has a network interface built by Fibar Group sp. z o.o..

What is the OUI AC:17:02?

AC:17:02 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Fibar Group sp. z o.o.. It covers every address from AC:17:02:00:00:00 to AC:17:02:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-17-02.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in AC:17:02:00:00:00 that is AC:17:02 — 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 Fibar Group sp. z o.o. located?

Fibar Group sp. z o.o. is listed at ul. Lotnicza 1 Poznan PL 60-421 in the IEEE OUI registry entry for AC:17:02. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Fibar Group sp. z o.o.

MAC address prefix AC:17:02 is registered to Fibar Group sp. z o.o. in the IEEE OUI registry. Any device whose MAC address begins with AC:17:02 has a network interface built by Fibar Group sp. z o.o.. 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 AC:17:02:00:00:00 to AC:17:02:FF:FF:FF.

OUI prefix: AC:17:02
Hyphen form: AC-17-02
MAC range: AC:17:02:00:00:00 – AC:17:02:FF:FF:FF
Addresses in block: 16,777,216
Organization: Fibar Group sp. z o.o.
Address: ul. Lotnicza 1 Poznan PL 60-421
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 "Fibar Group sp. z o.o."
archived source →
2026-07-17Assigned to "Fibar Group sp. z o.o."

Nearby in the registry

The prefixes assigned immediately before and after AC:17:02:

FAQ

Which company owns MAC address prefix AC:17:02?: MAC address prefix AC:17:02 is registered to Fibar Group sp. z o.o. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:17:02 has a network interface built by Fibar Group sp. z o.o..
What is the OUI AC:17:02?: AC:17:02 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Fibar Group sp. z o.o.. It covers every address from AC:17:02:00:00:00 to AC:17:02:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-17-02.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in AC:17:02:00:00:00 that is AC:17:02 — 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 Fibar Group sp. z o.o. located?: Fibar Group sp. z o.o. is listed at ul. Lotnicza 1 Poznan PL 60-421 in the IEEE OUI registry entry for AC:17:02. This is the address the organization registered with the IEEE, which may differ from its current operating address.