70:B3:D5:3F:5 DOLBY LABORATORIES, INC.
Every MAC address from 70:B3:D5:3F:50:00 to 70:B3:D5:3F:5F:FF belongs to a block the IEEE assigned to DOLBY LABORATORIES, INC.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:3F:5 belongs to
Written 70:B3:D5:3F:5, 70-B3-D5-3F-5 or 70B3D53F5, depending on the system. Look up a full address.
Prefix
70:B3:D5:3F:5/36
Organization
DOLBY LABORATORIES, INC.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:3F:50:00
Last address
70:B3:D5:3F:5F:FF
Address type
Globally unique, unicast
Registered address
100 Potrero Avenue San Francisco CA US 94103-4938
Parent block
Inside 70:B3:D5
This MA-S block is carved from the 24-bit block 70:B3:D5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to DOLBY LABORATORIES, INC.
3 more blocks registered under the same name.