MAC prefix B4:4D:43:5
| Vendor | halstrup-walcher GmbH |
|---|---|
| Short name | halstrupwalc |
| Prefix | B4:4D:43:5/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | B4:4D:43:50:00:00 – B4:4D:43:5F:FF:FF |
| Notations | B4:4D:43:50:00:00B4-4D-43-50-00-00b44d.4350.0000B44D43500000 |
Frequently asked questions
Which vendor does MAC address B4:4D:43:5 belong to?
MAC addresses starting with B4:4D:43:5 are assigned to halstrup-walcher GmbH according to the IEEE registry (prefix length 28 bits).
How many addresses does block B4:4D:43:5 contain?
The block contains 1,048,576 addresses from B4:4D:43:50:00:00 to B4:4D:43:5F:FF:FF.
Is B4:4D:43:5 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 halstrup-walcher GmbH have?
halstrup-walcher GmbH holds 2 registered prefixes in total – the full list is on the vendor page.