OUI Lookup
00509f
HORIZON COMPUTER
Manufacturer Information
- OUI Prefix
- 00509f
- Manufacturer
- HORIZON COMPUTER
- Address
- TRINITY BLDG. 4-22-7 TOKYO 106 JP
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00509F
The OUI prefix 00509F is assigned to HORIZON COMPUTER, based in TRINITY BLDG. 4-22-7 TOKYO 106 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 HORIZON COMPUTER.