OUI Lookup
645ebe
Yahoo! JAPAN
Manufacturer Information
- OUI Prefix
- 645ebe
- Manufacturer
- Yahoo! JAPAN
- Address
- Midtown Tower Minato-ku Tokyo JP 107-6211
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 645EBE
The OUI prefix 645EBE is assigned to Yahoo! JAPAN, based in Midtown Tower Minato-ku Tokyo JP 107-6211 . 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 Yahoo! JAPAN.