58:FC:DB:4 Inforce Computing Inc.
Every MAC address from 58:FC:DB:40:00:00 to 58:FC:DB:4F:FF:FF belongs to a block the IEEE assigned to Inforce Computing Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 58:FC:DB:4 belongs to
Written 58:FC:DB:4, 58-FC-DB-4 or 58FCDB4, depending on the system. Look up a full address.
Prefix
58:FC:DB:4/28
Organization
Inforce Computing Inc.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
58:FC:DB:40:00:00
Last address
58:FC:DB:4F:FF:FF
Address type
Globally unique, unicast
Registered address
48820 Kato Road Fremont CA US 94538
Parent block
Inside 58:FC:DB
This MA-M block is carved from the 24-bit block 58:FC:DB, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.