Which company owns MAC address prefix AC:42:28?

MAC address prefix AC:42:28 is registered to Parta Networks in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:42:28 has a network interface built by Parta Networks.

What is the OUI AC:42:28?

AC:42:28 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Parta Networks. It covers every address from AC:42:28:00:00:00 to AC:42:28:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-42-28.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in AC:42:28:00:00:00 that is AC:42:28 — 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 Parta Networks located?

Parta Networks is listed at Teknopark Izmir No:38 URLA IZMIR TR 35433 in the IEEE OUI registry entry for AC:42:28. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Parta Networks

MAC address prefix AC:42:28 is registered to Parta Networks in the IEEE OUI registry. Any device whose MAC address begins with AC:42:28 has a network interface built by Parta Networks. 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:42:28:00:00:00 to AC:42:28:FF:FF:FF.

OUI prefix: AC:42:28
Hyphen form: AC-42-28
MAC range: AC:42:28:00:00:00 – AC:42:28:FF:FF:FF
Addresses in block: 16,777,216
Organization: Parta Networks
Address: Teknopark Izmir No:38 URLA IZMIR TR 35433
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.

2019-07-04Assigned to "Parta Networks"
archived source →
2026-07-17Assigned to "Parta Networks"

Nearby in the registry

The prefixes assigned immediately before and after AC:42:28:

FAQ

Which company owns MAC address prefix AC:42:28?: MAC address prefix AC:42:28 is registered to Parta Networks in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with AC:42:28 has a network interface built by Parta Networks.
What is the OUI AC:42:28?: AC:42:28 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Parta Networks. It covers every address from AC:42:28:00:00:00 to AC:42:28:FF:FF:FF, or 16,777,216 addresses in total. It is also written AC-42-28.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in AC:42:28:00:00:00 that is AC:42:28 — 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 Parta Networks located?: Parta Networks is listed at Teknopark Izmir No:38 URLA IZMIR TR 35433 in the IEEE OUI registry entry for AC:42:28. This is the address the organization registered with the IEEE, which may differ from its current operating address.