4C:81:BE:D BEIJING CUNYIN CHENGQI TECHNOLOGY CO., LTD.
Every MAC address from 4C:81:BE:D0:00:00 to 4C:81:BE:DF:FF:FF belongs to a block the IEEE assigned to BEIJING CUNYIN CHENGQI TECHNOLOGY CO., LTD.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 4C:81:BE:D belongs to
Written 4C:81:BE:D, 4C-81-BE-D or 4C81BED, depending on the system. Look up a full address.
Prefix
4C:81:BE:D/28
Organization
BEIJING CUNYIN CHENGQI TECHNOLOGY CO., LTD.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
4C:81:BE:D0:00:00
Last address
4C:81:BE:DF:FF:FF
Address type
Globally unique, unicast
Registered address
1201-02,12th Floor,Building 1,No.13,Linyin North Street,Pinggu District Beijing CN 101200
Parent block
Inside 4C:81:BE
This MA-M block is carved from the 24-bit block 4C:81:BE, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to BEIJING CUNYIN CHENGQI TECHNOLOGY CO., LTD.
4 more blocks registered under the same name.