A4:97:5C VTech Telecommunications Ltd.
Every MAC address from A4:97:5C:00:00:00 to A4:97:5C:FF:FF:FF belongs to a block the IEEE assigned to VTech Telecommunications Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who A4:97:5C belongs to
Written A4:97:5C, A4-97-5C or A4975C, depending on the system. Look up a full address.
Prefix
A4:97:5C
Organization
VTech Telecommunications Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
A4:97:5C:00:00:00
Last address
A4:97:5C:FF:FF:FF
Address type
Globally unique, unicast
Registered address
23/F,Tai Ping Industrial Centre ,Block 1 Hong Kong CN 000000