38:73:EA:5 ISTCONTROL
Every MAC address from 38:73:EA:50:00:00 to 38:73:EA:5F:FF:FF belongs to a block the IEEE assigned to ISTCONTROL. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 38:73:EA:5 belongs to
Written 38:73:EA:5, 38-73-EA-5 or 3873EA5, depending on the system. Look up a full address.
Prefix
38:73:EA:5/28
Organization
ISTCONTROL
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
38:73:EA:50:00:00
Last address
38:73:EA:5F:FF:FF
Address type
Globally unique, unicast
Registered address
#1203, 37 Maebongsan-ro, Mapo-gu Seoul KR 03909
Parent block
Inside 38:73:EA
This MA-M block is carved from the 24-bit block 38:73:EA, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.