20:DF:3F Nanjing SAC Power Grid Automation Co., Ltd.
Every MAC address from 20:DF:3F:00:00:00 to 20:DF:3F:FF:FF:FF belongs to a block the IEEE assigned to Nanjing SAC Power Grid Automation Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 20:DF:3F belongs to
Written 20:DF:3F, 20-DF-3F or 20DF3F, depending on the system. Look up a full address.
Prefix
20:DF:3F
Organization
Nanjing SAC Power Grid Automation Co., Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
20:DF:3F:00:00:00
Last address
20:DF:3F:FF:FF:FF
Address type
Globally unique, unicast
Registered address
No.11 Phoenix Road Nanjing Jiangsu CN 211106
Same organization
Other blocks assigned to Nanjing SAC Power Grid Automation Co., Ltd.
1 more block registered under the same name.