MAC prefix 10:03:CD
| Vendor | Calix Inc. |
|---|---|
| Short name | Calix |
| Prefix | 10:03:CD/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 10:03:CD:00:00:00 – 10:03:CD:FF:FF:FF |
| Notations | 10:03:CD:00:00:0010-03-CD-00-00-001003.cd00.00001003CD000000 |
Frequently asked questions
Which vendor does MAC address 10:03:CD belong to?
MAC addresses starting with 10:03:CD are assigned to Calix Inc. according to the IEEE registry (prefix length 24 bits).
How many addresses does block 10:03:CD contain?
The block contains 16,777,216 addresses from 10:03:CD:00:00:00 to 10:03:CD:FF:FF:FF.
Is 10:03:CD 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 Calix Inc. have?
Calix Inc. holds 24 registered prefixes in total – the full list is on the vendor page.