Which company owns MAC address prefix 88:78:9C?

MAC address prefix 88:78:9C is registered to Game Technologies SA in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:78:9C has a network interface built by Game Technologies SA.

What is the OUI 88:78:9C?

88:78:9C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Game Technologies SA. It covers every address from 88:78:9C:00:00:00 to 88:78:9C:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-78-9C.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 88:78:9C:00:00:00 that is 88:78:9C — 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 Game Technologies SA located?

Game Technologies SA is listed at Plac W. Andersa 3 Poznan PL 61894 in the IEEE OUI registry entry for 88:78:9C. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Game Technologies SA

MAC address prefix 88:78:9C is registered to Game Technologies SA in the IEEE OUI registry. Any device whose MAC address begins with 88:78:9C has a network interface built by Game Technologies SA. 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 88:78:9C:00:00:00 to 88:78:9C:FF:FF:FF.

OUI prefix: 88:78:9C
Hyphen form: 88-78-9C
MAC range: 88:78:9C:00:00:00 – 88:78:9C:FF:FF:FF
Addresses in block: 16,777,216
Organization: Game Technologies SA
Address: Plac W. Andersa 3 Poznan PL 61894
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 "Game Technologies SA"
archived source →
2026-07-17Assigned to "Game Technologies SA"

Nearby in the registry

The prefixes assigned immediately before and after 88:78:9C:

FAQ

Which company owns MAC address prefix 88:78:9C?: MAC address prefix 88:78:9C is registered to Game Technologies SA in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:78:9C has a network interface built by Game Technologies SA.
What is the OUI 88:78:9C?: 88:78:9C is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Game Technologies SA. It covers every address from 88:78:9C:00:00:00 to 88:78:9C:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-78-9C.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 88:78:9C:00:00:00 that is 88:78:9C — 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 Game Technologies SA located?: Game Technologies SA is listed at Plac W. Andersa 3 Poznan PL 61894 in the IEEE OUI registry entry for 88:78:9C. This is the address the organization registered with the IEEE, which may differ from its current operating address.