What this means
The IEEE assigned the MA-L block 001803 to ArcSoft Shanghai 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 00:18:03, it is ArcSoft Shanghai Co. LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 001803?
001803 is registered to ArcSoft Shanghai Co. LTD in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. ArcSoft Shanghai Co. LTD's block covers 16,777,216 addresses.
What devices use 001803?
Any network device with a MAC address starting 00:18:03 was manufactured by or for ArcSoft Shanghai Co. LTD.