Sercomm Corporation.

OUI: D4:21:22

Range: D4:21:22:00:00:00 - D4:21:22:FF:FF:FF

Block Size: 16777215 (16.77 M)

Universally administered addresses (UAA) : the address is uniquely assigned by its manufacturer.

Type of transmission: Unicast

Wireshark:

Sercomm