38:31:5A Rinnai
Every MAC address from 38:31:5A:00:00:00 to 38:31:5A:FF:FF:FF belongs to a block the IEEE assigned to Rinnai. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 38:31:5A belongs to
Written 38:31:5A, 38-31-5A or 38315A, depending on the system. Look up a full address.
Prefix
38:31:5A
Organization
Rinnai
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
38:31:5A:00:00:00
Last address
38:31:5A:FF:FF:FF
Address type
Globally unique, unicast
Registered address
103 International Drive Peachtree City GA US 30269