MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
SMC MASSACHUSETTS, INC.
MAC prefix: 00:40:27
MAC range: 00:40:27:00:00:00 - 00:40:27: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
Had:Sigma (?), maybe the "S"?