70:B3:D5:16:A 4Jtech s.r.o.
Every MAC address from 70:B3:D5:16:A0:00 to 70:B3:D5:16:AF:FF belongs to a block the IEEE assigned to 4Jtech s.r.o.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:16:A belongs to
Written 70:B3:D5:16:A, 70-B3-D5-16-A or 70B3D516A, depending on the system. Look up a full address.
Prefix
70:B3:D5:16:A/36
Organization
4Jtech s.r.o.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:16:A0:00
Last address
70:B3:D5:16:AF:FF
Address type
Globally unique, unicast
Registered address
Ringhofferova 115/1 Prague Czech Republic CZ 155 21
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.