OUI Lookup
7491bd
Four systems Co.,Ltd.
Manufacturer Information
- OUI Prefix
- 7491bd
- Manufacturer
- Four systems Co.,Ltd.
- Address
- 608-608/7 Ramintra Road Kannayao Bangkok Bangkok TH 10230
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 7491BD
The OUI prefix 7491BD is assigned to Four systems Co.,Ltd., based in 608-608/7 Ramintra Road Kannayao Bangkok Bangkok TH 10230 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Four systems Co.,Ltd..