MAC prefix 40:D8:55:1A:B
| Vendor | Rosslare Enterprises Limited |
|---|---|
| Short name | RosslareEnte |
| Prefix | 40:D8:55:1A:B/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 40:D8:55:1A:B0:00 – 40:D8:55:1A:BF:FF |
| Notations | 40:D8:55:1A:B0:0040-D8-55-1A-B0-0040d8.551a.b00040D8551AB000 |
Frequently asked questions
Which vendor does MAC address 40:D8:55:1A:B belong to?
MAC addresses starting with 40:D8:55:1A:B are assigned to Rosslare Enterprises Limited according to the IEEE registry (prefix length 36 bits).
How many addresses does block 40:D8:55:1A:B contain?
The block contains 4,096 addresses from 40:D8:55:1A:B0:00 to 40:D8:55:1A:BF:FF.
Is 40:D8:55:1A: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 Rosslare Enterprises Limited have?
Rosslare Enterprises Limited holds 10 registered prefixes in total – the full list is on the vendor page.