MAC prefix 70:B3:D5:A1:7
| Vendor | Tunstall A/S |
|---|---|
| Short name | Tunstall |
| Prefix | 70:B3:D5:A1:7/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 70:B3:D5:A1:70:00 – 70:B3:D5:A1:7F:FF |
| Notations | 70:B3:D5:A1:70:0070-B3-D5-A1-70-0070b3.d5a1.700070B3D5A17000 |
Frequently asked questions
Which vendor does MAC address 70:B3:D5:A1:7 belong to?
MAC addresses starting with 70:B3:D5:A1:7 are assigned to Tunstall A/S according to the IEEE registry (prefix length 36 bits).
How many addresses does block 70:B3:D5:A1:7 contain?
The block contains 4,096 addresses from 70:B3:D5:A1:70:00 to 70:B3:D5:A1:7F:FF.
Is 70:B3:D5:A1:7 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 Tunstall A/S have?
Tunstall A/S holds 5 registered prefixes in total – the full list is on the vendor page.