What this means
The IEEE assigned the MA-S block 001BC504A to Certis Technology International Pte 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 00:1B:C5:04:A, it is Certis Technology International Pte Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 001BC504A?
001BC504A is registered to Certis Technology International Pte 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. Certis Technology International Pte Ltd's block covers 4,096 addresses.
What devices use 001BC504A?
Any network device with a MAC address starting 00:1B:C5:04:A was manufactured by or for Certis Technology International Pte Ltd.