MAC prefix F0:21:9D
Cal-Comp Electronics & Communications Company Ltd.
| Vendor | Cal-Comp Electronics & Communications Company Ltd. |
|---|---|
| Short name | CalCompElect |
| Prefix | F0:21:9D/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | F0:21:9D:00:00:00 – F0:21:9D:FF:FF:FF |
| Notations | F0:21:9D:00:00:00F0-21-9D-00-00-00f021.9d00.0000F0219D000000 |
Frequently asked questions
Which vendor does MAC address F0:21:9D belong to?
MAC addresses starting with F0:21:9D are assigned to Cal-Comp Electronics & Communications Company Ltd. according to the IEEE registry (prefix length 24 bits).
How many addresses does block F0:21:9D contain?
The block contains 16,777,216 addresses from F0:21:9D:00:00:00 to F0:21:9D:FF:FF:FF.
Is F0:21:9D a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).
How do I find the MAC address of my device?
On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.
Which other MAC prefixes does Cal-Comp Electronics & Communications Company Ltd. have?
Cal-Comp Electronics & Communications Company Ltd. holds 3 registered prefixes in total – the full list is on the vendor page.