Which company owns MAC address prefix 88:9A:FF?

MAC address prefix 88:9A:FF is registered to SystemX Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:9A:FF has a network interface built by SystemX Co.,Ltd..

What is the OUI 88:9A:FF?

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

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 88:9A:FF:00:00:00 that is 88:9A:FF — 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 SystemX Co.,Ltd. located?

SystemX Co.,Ltd. is listed at 102, Gosan-ro Gunpo-si Gyeonggi-do KR 15849 in the IEEE OUI registry entry for 88:9A:FF. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does SystemX Co.,Ltd. own?

SystemX Co.,Ltd. holds 2 OUI prefixes in the IEEE registry, of which 88:9A:FF is one. A device made by SystemX Co.,Ltd. could carry a MAC address from any of them.

SystemX Co.,Ltd.

MAC address prefix 88:9A:FF is registered to SystemX Co.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 88:9A:FF has a network interface built by SystemX Co.,Ltd.. 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 88:9A:FF:00:00:00 to 88:9A:FF:FF:FF:FF.

OUI prefix: 88:9A:FF
Hyphen form: 88-9A-FF
MAC range: 88:9A:FF:00:00:00 – 88:9A:FF:FF:FF:FF
Addresses in block: 16,777,216
Organization: SystemX Co.,Ltd.
Address: 102, Gosan-ro Gunpo-si Gyeonggi-do KR 15849
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.

Other prefixes from SystemX Co.,Ltd.

SystemX Co.,Ltd. holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

CC:A1:50

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2025-08-23Assigned to "SystemX Co.,Ltd."
archived source →
2026-07-17Assigned to "SystemX Co.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 88:9A:FF:

FAQ

Which company owns MAC address prefix 88:9A:FF?: MAC address prefix 88:9A:FF is registered to SystemX Co.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 88:9A:FF has a network interface built by SystemX Co.,Ltd..
What is the OUI 88:9A:FF?: 88:9A:FF is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to SystemX Co.,Ltd.. It covers every address from 88:9A:FF:00:00:00 to 88:9A:FF:FF:FF:FF, or 16,777,216 addresses in total. It is also written 88-9A-FF.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 88:9A:FF:00:00:00 that is 88:9A:FF — 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 SystemX Co.,Ltd. located?: SystemX Co.,Ltd. is listed at 102, Gosan-ro Gunpo-si Gyeonggi-do KR 15849 in the IEEE OUI registry entry for 88:9A:FF. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does SystemX Co.,Ltd. own?: SystemX Co.,Ltd. holds 2 OUI prefixes in the IEEE registry, of which 88:9A:FF is one. A device made by SystemX Co.,Ltd. could carry a MAC address from any of them.