MAC prefix 40:F3:85:1
Johnson Matthey
| Vendor | Johnson Matthey |
|---|---|
| Short name | JohnsonMatth |
| Prefix | 40:F3:85:1/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 40:F3:85:10:00:00 – 40:F3:85:1F:FF:FF |
| Notations | 40:F3:85:10:00:0040-F3-85-10-00-0040f3.8510.000040F385100000 |
Frequently asked questions
Which vendor does MAC address 40:F3:85:1 belong to?
MAC addresses starting with 40:F3:85:1 are assigned to Johnson Matthey according to the IEEE registry (prefix length 28 bits).
How many addresses does block 40:F3:85:1 contain?
The block contains 1,048,576 addresses from 40:F3:85:10:00:00 to 40:F3:85:1F:FF:FF.
Is 40:F3:85:1 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.