Who owns MAC prefix 70B3D5AB1?

70B3D5AB1 is registered to ISRV Zrt. in the IEEE MA-S registry.

What devices use 70B3D5AB1?

Any network device with a MAC address starting 70:B3:D5:AB:1 was manufactured by or for ISRV Zrt..

MA-S · OUI prefix

ISRV Zrt.

Any MAC address starting 70:B3:D5:AB:1 is registered to ISRV Zrt. in HU.

OUI prefix	70B3D5AB1
Vendor	ISRV Zrt.
Registry	MA-S (36-bit, small block)
Country	HU
Example MAC	70:B3:D5:AB:1:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5AB1 to ISRV Zrt.. 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:AB:1, it is ISRV Zrt. hardware.

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