B4:EF:04 DAIHAN Scientific Co., Ltd.
Every MAC address from B4:EF:04:00:00:00 to B4:EF:04:FF:FF:FF belongs to a block the IEEE assigned to DAIHAN Scientific Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:EF:04 belongs to
Written B4:EF:04, B4-EF-04 or B4EF04, depending on the system. Look up a full address.
Prefix
B4:EF:04
Organization
DAIHAN Scientific Co., Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
B4:EF:04:00:00:00
Last address
B4:EF:04:FF:FF:FF
Address type
Globally unique, unicast
Registered address
326, Sinpyoungsukhwaro Wonju-si, Gangwon-do KR 26358