Which company owns MAC address prefix 44:1A:AC?

MAC address prefix 44:1A:AC is registered to Elektrik Uretim AS EOS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 44:1A:AC has a network interface built by Elektrik Uretim AS EOS.

What is the OUI 44:1A:AC?

44:1A:AC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Elektrik Uretim AS EOS. It covers every address from 44:1A:AC:00:00:00 to 44:1A:AC:FF:FF:FF, or 16,777,216 addresses in total. It is also written 44-1A-AC.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 44:1A:AC:00:00:00 that is 44:1A:AC — 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 Elektrik Uretim AS EOS located?

Elektrik Uretim AS EOS is listed at Mustafa Kemal Mahallesi No:166 Çankaya Ankara TR 06520 in the IEEE OUI registry entry for 44:1A:AC. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Elektrik Uretim AS EOS

MAC address prefix 44:1A:AC is registered to Elektrik Uretim AS EOS in the IEEE OUI registry. Any device whose MAC address begins with 44:1A:AC has a network interface built by Elektrik Uretim AS EOS. 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 44:1A:AC:00:00:00 to 44:1A:AC:FF:FF:FF.

OUI prefix: 44:1A:AC
Hyphen form: 44-1A-AC
MAC range: 44:1A:AC:00:00:00 – 44:1A:AC:FF:FF:FF
Addresses in block: 16,777,216
Organization: Elektrik Uretim AS EOS
Address: Mustafa Kemal Mahallesi No:166 Çankaya Ankara TR 06520
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.

2022-07-11Assigned to "Elektrik Uretim AS EOS"
archived source →
2026-07-17Assigned to "Elektrik Uretim AS EOS"

Nearby in the registry

The prefixes assigned immediately before and after 44:1A:AC:

FAQ

Which company owns MAC address prefix 44:1A:AC?: MAC address prefix 44:1A:AC is registered to Elektrik Uretim AS EOS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 44:1A:AC has a network interface built by Elektrik Uretim AS EOS.
What is the OUI 44:1A:AC?: 44:1A:AC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Elektrik Uretim AS EOS. It covers every address from 44:1A:AC:00:00:00 to 44:1A:AC:FF:FF:FF, or 16,777,216 addresses in total. It is also written 44-1A-AC.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 44:1A:AC:00:00:00 that is 44:1A:AC — 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 Elektrik Uretim AS EOS located?: Elektrik Uretim AS EOS is listed at Mustafa Kemal Mahallesi No:166 Çankaya Ankara TR 06520 in the IEEE OUI registry entry for 44:1A:AC. This is the address the organization registered with the IEEE, which may differ from its current operating address.