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70:B3:D5:CA:1 Waldo System

Every MAC address from 70:B3:D5:CA:10:00 to 70:B3:D5:CA:1F:FF belongs to a block the IEEE assigned to Waldo System. Network cards, phones and other devices it makes carry addresses from here.

Who 70:B3:D5:CA:1 belongs to

Written 70:B3:D5:CA:1, 70-B3-D5-CA-1 or 70B3D5CA1, depending on the system. Look up a full address.

Prefix
70:B3:D5:CA:1/36
Organization
Waldo System
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:CA:10:00
Last address
70:B3:D5:CA:1F:FF
Address type
Globally unique, unicast
Registered address
4th Floor, 658, Yangcheon-ro, Gangseo-gu, Seoul KR 07554

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.