OUI Lookup
507b91
Sigmastar Technology Ltd.
Manufacturer Information
- OUI Prefix
- 507b91
- Manufacturer
- Sigmastar Technology Ltd.
- Address
- No. 1, HoZan Road, Tong'an District X iamen Fujian Province CN 361100
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 4
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 507B91
The OUI prefix 507B91 is assigned to Sigmastar Technology Ltd., based in No. 1, HoZan Road, Tong'an District X iamen Fujian Province CN 361100 . 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 Sigmastar Technology Ltd..