OUI Lookup
00800b
CSK CORPORATION
Manufacturer Information
- OUI Prefix
- 00800b
- Manufacturer
- CSK CORPORATION
- Address
- 18F MATSUSHITA IMP BLDG, JAPAN JP 540
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00800B
The OUI prefix 00800B is assigned to CSK CORPORATION, based in 18F MATSUSHITA IMP BLDG, JAPAN JP 540 . 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 CSK CORPORATION.