OUI Lookup
78303b
Stephen Technologies Co.,Limited
Manufacturer Information
- OUI Prefix
- 78303b
- Manufacturer
- Stephen Technologies Co.,Limited
- Address
- 5/F, Building NO.1, TongXin Industry Zone Shenzhen Guangdong CN 518115
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 78303B
The OUI prefix 78303B is assigned to Stephen Technologies Co.,Limited, based in 5/F, Building NO.1, TongXin Industry Zone Shenzhen Guangdong CN 518115 . 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 Stephen Technologies Co.,Limited.