70:B3:D5:21:E Hildebrand Technology Limited
Every MAC address from 70:B3:D5:21:E0:00 to 70:B3:D5:21:EF:FF belongs to a block the IEEE assigned to Hildebrand Technology Limited. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:21:E belongs to
Written 70:B3:D5:21:E, 70-B3-D5-21-E or 70B3D521E, depending on the system. Look up a full address.
Prefix
70:B3:D5:21:E/36
Organization
Hildebrand Technology Limited
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:21:E0:00
Last address
70:B3:D5:21:EF:FF
Address type
Globally unique, unicast
Registered address
16 Mortimer Street London London GB W1T 3JL
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.