Who owns MAC prefix 70B3D51D7?

70B3D51D7 is registered to BAE Systems in the IEEE MA-S registry.

What devices use 70B3D51D7?

Any network device with a MAC address starting 70:B3:D5:1D:7 was manufactured by or for BAE Systems.

MA-S · OUI prefix

BAE Systems

Any MAC address starting 70:B3:D5:1D:7 is registered to BAE Systems.

OUI prefix	70B3D51D7
Vendor	BAE Systems
Registry	MA-S (36-bit, small block)
Example MAC	70:B3:D5:1D:7:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D51D7 to BAE Systems. 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:D5:1D:7, it is BAE Systems hardware.

Other BAE Systems prefixes

BAE Systems holds 9 registered blocks in total.

000BF3 18F9C4 70B3D5055 70B3D5AFC 70B3D5E2D 8C1F64556 9405BBE BCD767

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