D4:7C:44:8 Beijing Maystar Information Technology Co., Ltd.
Every MAC address from D4:7C:44:80:00:00 to D4:7C:44:8F:FF:FF belongs to a block the IEEE assigned to Beijing Maystar Information Technology Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who D4:7C:44:8 belongs to
Written D4:7C:44:8, D4-7C-44-8 or D47C448, depending on the system. Look up a full address.
Prefix
D4:7C:44:8/28
Organization
Beijing Maystar Information Technology Co., Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
D4:7C:44:80:00:00
Last address
D4:7C:44:8F:FF:FF
Address type
Globally unique, unicast
Registered address
Building B 5/F,Shangdi Keji Zonghe Building,No.22 Shangdi Information Road, Haidian District Beijing CN 100084
Parent block
Inside D4:7C:44
This MA-M block is carved from the 24-bit block D4:7C:44, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.