Toyoshima Electric Technoeogy(Suzhou) Co.,Ltd.
Any device whose MAC address begins with 8C:91:09 has a network interface built by Toyoshima Electric Technoeogy(Suzhou) Co.,Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- 8C:91:09
- Organization
- Toyoshima Electric Technoeogy(Suzhou) Co.,Ltd.
- Address
- No.399,Baisheng Road,Jinxi Town Kunshan Jiangsu CN 215324
- 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 (1)
The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.
- 2026-07-17Assigned to "Toyoshima Electric Technoeogy(Suzhou) Co.,Ltd."