70:B3:D5:89:B ControlWorks, Inc.
Every MAC address from 70:B3:D5:89:B0:00 to 70:B3:D5:89:BF:FF belongs to a block the IEEE assigned to ControlWorks, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:89:B belongs to
Written 70:B3:D5:89:B, 70-B3-D5-89-B or 70B3D589B, depending on the system. Look up a full address.
Prefix
70:B3:D5:89:B/36
Organization
ControlWorks, Inc.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:89:B0:00
Last address
70:B3:D5:89:BF:FF
Address type
Globally unique, unicast
Registered address
Jinil Bldg. Suite401, 13 Eonju-ro 81 gil, Gangnam-gu, Seoul KR 06222
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.