Who owns MAC prefix 001BC5003?

001BC5003 is registered to MicroSigns Technologies Inc in the IEEE MA-S registry.

What devices use 001BC5003?

Any network device with a MAC address starting 00:1B:C5:00:3 was manufactured by or for MicroSigns Technologies Inc.

MA-S · OUI prefix

MicroSigns Technologies Inc

Any MAC address starting 00:1B:C5:00:3 is registered to MicroSigns Technologies Inc.

OUI prefix	001BC5003
Vendor	MicroSigns Technologies Inc
Registry	MA-S (36-bit, small block)
Example MAC	00:1B:C5:00:3:00:00:00

What this means

The IEEE assigned the MA-S block 001BC5003 to MicroSigns Technologies Inc. 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:C5:00:3, it is MicroSigns Technologies Inc hardware.

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