What this means
The IEEE assigned the MA-M block 18A59CB to CAL-COMP INDUSTRIA E COMERCIO DE ELETRONICOS E INFORMATICA LTDA. 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 18:A5:9C:B, it is CAL-COMP INDUSTRIA E COMERCIO DE ELETRONICOS E INFORMATICA LTDA hardware.
Frequently Asked Questions
Who owns MAC prefix 18A59CB?
18A59CB is registered to CAL-COMP INDUSTRIA E COMERCIO DE ELETRONICOS E INFORMATICA LTDA in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. CAL-COMP INDUSTRIA E COMERCIO DE ELETRONICOS E INFORMATICA LTDA's block covers 1,048,576 addresses.
What devices use 18A59CB?
Any network device with a MAC address starting 18:A5:9C:B was manufactured by or for CAL-COMP INDUSTRIA E COMERCIO DE ELETRONICOS E INFORMATICA LTDA.