OUI Lookup
a4f522
CHOFU SEISAKUSHO CO.,LTD
Manufacturer Information
- OUI Prefix
- a4f522
- Manufacturer
- CHOFU SEISAKUSHO CO.,LTD
- Address
- 2-1 Shimonoseki-shi Yamaguchi JP 752-8555
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix A4F522
The OUI prefix A4F522 is assigned to CHOFU SEISAKUSHO CO.,LTD, based in 2-1 Shimonoseki-shi Yamaguchi JP 752-8555 . 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 CHOFU SEISAKUSHO CO.,LTD.