MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address


Four systems Co.,Ltd.

OUI prefix: 74:91:BD

Vendor name: Four systems Co.,Ltd.


608-608/7 Ramintra Road Kannayao
Bangkok Bangkok 10230

Assignment Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Last updated: 17 November 2015

Initial registration: 21 September 2014

MAC Address Vendor Country TH map