TIAMA - MAC Prefix 70B3D5C4A (MA-S)

What this means

The IEEE assigned the MA-S block 70B3D5C4A to TIAMA. 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:C4:A, it is TIAMA hardware.

Frequently Asked Questions

Who owns MAC prefix 70B3D5C4A?

70B3D5C4A is registered to TIAMA 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. TIAMA's block covers 4,096 addresses.

What devices use 70B3D5C4A?

Any network device with a MAC address starting 70:B3:D5:C4:A was manufactured by or for TIAMA.

Other TIAMA prefixes

TIAMA holds 17 registered blocks in total.

OUI prefix	70B3D5C4A
Vendor	TIAMA
Registry	MA-S (36-bit, small block)
Block size	4,096 addresses
Country	FR
Other blocks by this vendor	17 total
Example MAC	70:B3:D5:C4:A:00:00:00