OUI Lookup
44388c
Sumitomo Electric Industries, Ltd
Manufacturer Information
- OUI Prefix
- 44388c
- Manufacturer
- Sumitomo Electric Industries, Ltd
- Address
- 1-1-3, Shimaya, Konohana-ku Osaka JP 554-0024
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 8
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 44388C
The OUI prefix 44388C is assigned to Sumitomo Electric Industries, Ltd, based in 1-1-3, Shimaya, Konohana-ku Osaka JP 554-0024 . 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 Sumitomo Electric Industries, Ltd.