D4:7C:44:D Huaqin Telecom Technology Co.,Ltd.
Every MAC address from D4:7C:44:D0:00:00 to D4:7C:44:DF:FF:FF belongs to a block the IEEE assigned to Huaqin Telecom Technology Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who D4:7C:44:D belongs to
Written D4:7C:44:D, D4-7C-44-D or D47C44D, depending on the system. Look up a full address.
Prefix
D4:7C:44:D/28
Organization
Huaqin Telecom Technology Co.,Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
D4:7C:44:D0:00:00
Last address
D4:7C:44:DF:FF:FF
Address type
Globally unique, unicast
Registered address
Building 1,No.399, Keyuan Road, Pudong, Shanghai China Shanghai CN 200120
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.
Same organization
Other blocks assigned to Huaqin Telecom Technology Co.,Ltd.
3 more blocks registered under the same name.