OUI Lookup
0020ef
USC CORPORATION
Manufacturer Information
- OUI Prefix
- 0020ef
- Manufacturer
- USC CORPORATION
- Address
- 6-4, OSAKI 1-CHOME 141 JP
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0020EF
The OUI prefix 0020EF is assigned to USC CORPORATION, based in 6-4, OSAKI 1-CHOME 141 JP . 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 USC CORPORATION.