MAC prefix 7C:E4:A1:B
| Vendor | Cummins Inc |
|---|---|
| Short name | Cummins |
| Prefix | 7C:E4:A1:B/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 7C:E4:A1:B0:00:00 – 7C:E4:A1:BF:FF:FF |
| Notations | 7C:E4:A1:B0:00:007C-E4-A1-B0-00-007ce4.a1b0.00007CE4A1B00000 |
Frequently asked questions
Which vendor does MAC address 7C:E4:A1:B belong to?
MAC addresses starting with 7C:E4:A1:B are assigned to Cummins Inc according to the IEEE registry (prefix length 28 bits).
How many addresses does block 7C:E4:A1:B contain?
The block contains 1,048,576 addresses from 7C:E4:A1:B0:00:00 to 7C:E4:A1:BF:FF:FF.
Is 7C:E4:A1:B 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 Cummins Inc have?
Cummins Inc holds 2 registered prefixes in total – the full list is on the vendor page.