90:38:DF Changzhou Tiannengbo System Co. Ltd.
Every MAC address from 90:38:DF:00:00:00 to 90:38:DF:FF:FF:FF belongs to a block the IEEE assigned to Changzhou Tiannengbo System Co. Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 90:38:DF belongs to
Written 90:38:DF, 90-38-DF or 9038DF, depending on the system. Look up a full address.
Prefix
90:38:DF
Organization
Changzhou Tiannengbo System Co. Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
90:38:DF:00:00:00
Last address
90:38:DF:FF:FF:FF
Address type
Globally unique, unicast
Registered address
#9 East Hehai Road, RM 306 Changzhou Jiangsu Province CN 213000