MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Testbook Ltd
OUI: 40:D8:55:11:3
Range: 40:D8:55:11:30:00 - 40:D8:55:11:3F:FF
Block Size: 4095 (4.09 k)
Universally administered addresses (UAA) : the address is uniquely assigned by its manufacturer.
Type of transmission: Unicast
Wireshark:
No additional details