MAC prefix 74:99:75
| Vendor | IBM Corporation |
|---|---|
| Short name | IBM |
| Prefix | 74:99:75/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 74:99:75:00:00:00 – 74:99:75:FF:FF:FF |
| Notations | 74:99:75:00:00:0074-99-75-00-00-007499.7500.0000749975000000 |
Frequently asked questions
Which vendor does MAC address 74:99:75 belong to?
MAC addresses starting with 74:99:75 are assigned to IBM Corporation according to the IEEE registry (prefix length 24 bits).
How many addresses does block 74:99:75 contain?
The block contains 16,777,216 addresses from 74:99:75:00:00:00 to 74:99:75:FF:FF:FF.
Is 74:99:75 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 IBM Corporation have?
IBM Corporation holds 31 registered prefixes in total – the full list is on the vendor page.