What this means
The IEEE assigned the MA-S block 70B3D538E to China Telecom Fufu Information Technology CO.,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:D5:38:E, it is China Telecom Fufu Information Technology CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D538E?
70B3D538E is registered to China Telecom Fufu Information Technology CO.,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. China Telecom Fufu Information Technology CO.,LTD's block covers 4,096 addresses.
What devices use 70B3D538E?
Any network device with a MAC address starting 70:B3:D5:38:E was manufactured by or for China Telecom Fufu Information Technology CO.,LTD.