04:90:81 Pensando Systems, Inc.
Every MAC address from 04:90:81:00:00:00 to 04:90:81:FF:FF:FF belongs to a block the IEEE assigned to Pensando Systems, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 04:90:81 belongs to
Written 04:90:81, 04-90-81 or 049081, depending on the system. Look up a full address.
Prefix
04:90:81
Organization
Pensando Systems, Inc.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
04:90:81:00:00:00
Last address
04:90:81:FF:FF:FF
Address type
Globally unique, unicast
Registered address
570 Alder Drive Milpitas CA US 95035