MAC prefix 04:EC:A9:9
| Vendor | Private |
|---|---|
| Prefix | 04:EC:A9:9/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 04:EC:A9:90:00:00 – 04:EC:A9:9F:FF:FF |
| Notations | 04:EC:A9:90:00:0004-EC-A9-90-00-0004ec.a990.000004ECA9900000 |
Frequently asked questions
Which vendor does MAC address 04:EC:A9:9 belong to?
MAC addresses starting with 04:EC:A9:9 are assigned to Private according to the IEEE registry (prefix length 28 bits).
How many addresses does block 04:EC:A9:9 contain?
The block contains 1,048,576 addresses from 04:EC:A9:90:00:00 to 04:EC:A9:9F:FF:FF.
Is 04:EC:A9:9 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 Private have?
Private holds 240 registered prefixes in total – the full list is on the vendor page.