MAC prefix 7C:45:F9:4
SPECS Surface Nano Analysis GmbH
| Vendor | SPECS Surface Nano Analysis GmbH |
|---|---|
| Short name | SPECSSurface |
| Prefix | 7C:45:F9:4/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 7C:45:F9:40:00:00 – 7C:45:F9:4F:FF:FF |
| Notations | 7C:45:F9:40:00:007C-45-F9-40-00-007c45.f940.00007C45F9400000 |
Frequently asked questions
Which vendor does MAC address 7C:45:F9:4 belong to?
MAC addresses starting with 7C:45:F9:4 are assigned to SPECS Surface Nano Analysis GmbH according to the IEEE registry (prefix length 28 bits).
How many addresses does block 7C:45:F9:4 contain?
The block contains 1,048,576 addresses from 7C:45:F9:40:00:00 to 7C:45:F9:4F:FF:FF.
Is 7C:45:F9:4 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.