Abbas, a.s. - MAC Prefix 70B3D5B18 (MA-S)

What this means

The IEEE assigned the MA-S block 70B3D5B18 to Abbas, a.s.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 70:B3:D5:B1:8, it is Abbas, a.s. hardware.

Frequently Asked Questions

Who owns MAC prefix 70B3D5B18?

70B3D5B18 is registered to Abbas, a.s. in the IEEE MA-S registry.

What does the MA-S registry type mean?

An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. Abbas, a.s.'s block covers 4,096 addresses.

What devices use 70B3D5B18?

Any network device with a MAC address starting 70:B3:D5:B1:8 was manufactured by or for Abbas, a.s..

OUI prefix	70B3D5B18
Vendor	Abbas, a.s.
Registry	MA-S (36-bit, small block)
Block size	4,096 addresses
Country	CZ
Other blocks by this vendor	1 total
Example MAC	70:B3:D5:B1:8:00:00:00