EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A. - MAC Prefix 70B3D52BC (MA-S)

What this means

The IEEE assigned the MA-S block 70B3D52BC to EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A.. 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:D5:2B:C, it is EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A. hardware.

Frequently Asked Questions

Who owns MAC prefix 70B3D52BC?

70B3D52BC is registered to EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A. 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. EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A.'s block covers 4,096 addresses.

What devices use 70B3D52BC?

Any network device with a MAC address starting 70:B3:D5:2B:C was manufactured by or for EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A..

OUI prefix	70B3D52BC
Vendor	EQUIPOS DE TELECOMUNICACIÓN OPTOELECTRÓNICOS, S.A.
Registry	MA-S (36-bit, small block)
Block size	4,096 addresses
Country	ES
Other blocks by this vendor	1 total
Example MAC	70:B3:D5:2B:C:00:00:00