A4:81:7A CIG SHANGHAI CO LTD
Every MAC address from A4:81:7A:00:00:00 to A4:81:7A:FF:FF:FF belongs to a block the IEEE assigned to CIG SHANGHAI CO LTD. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who A4:81:7A belongs to
Written A4:81:7A, A4-81-7A or A4817A, depending on the system. Look up a full address.
Prefix
A4:81:7A
Organization
CIG SHANGHAI CO LTD
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
A4:81:7A:00:00:00
Last address
A4:81:7A:FF:FF:FF
Address type
Globally unique, unicast
Registered address
5th Floor, Building 8 No 2388 Chenhang Road SHANGHAI CN 201114