Oxford Monitoring Solutions Ltd - MAC Prefix 70B3D5102 (MA-S)

What this means

The IEEE assigned the MA-S block 70B3D5102 to Oxford Monitoring Solutions Ltd. 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:D5:10:2, it is Oxford Monitoring Solutions Ltd hardware.

Frequently Asked Questions

Who owns MAC prefix 70B3D5102?

70B3D5102 is registered to Oxford Monitoring Solutions Ltd 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. Oxford Monitoring Solutions Ltd's block covers 4,096 addresses.

What devices use 70B3D5102?

Any network device with a MAC address starting 70:B3:D5:10:2 was manufactured by or for Oxford Monitoring Solutions Ltd.

OUI prefix	70B3D5102
Vendor	Oxford Monitoring Solutions Ltd
Registry	MA-S (36-bit, small block)
Block size	4,096 addresses
Country	GB
Other blocks by this vendor	1 total
Example MAC	70:B3:D5:10:2:00:00:00