MAC prefix B4:37:D1:B
| Vendor | NSI Co., Ltd. |
|---|---|
| Short name | NSI |
| Prefix | B4:37:D1:B/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | B4:37:D1:B0:00:00 – B4:37:D1:BF:FF:FF |
| Notations | B4:37:D1:B0:00:00B4-37-D1-B0-00-00b437.d1b0.0000B437D1B00000 |
Frequently asked questions
Which vendor does MAC address B4:37:D1:B belong to?
MAC addresses starting with B4:37:D1:B are assigned to NSI Co., Ltd. according to the IEEE registry (prefix length 28 bits).
How many addresses does block B4:37:D1:B contain?
The block contains 1,048,576 addresses from B4:37:D1:B0:00:00 to B4:37:D1:BF:FF:FF.
Is B4:37:D1: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 NSI Co., Ltd. have?
NSI Co., Ltd. holds 2 registered prefixes in total – the full list is on the vendor page.