MAC prefix 70:88:6B:9
Shenzhen Coolhear Information Technology Co., Ltd.
| Vendor | Shenzhen Coolhear Information Technology Co., Ltd. |
|---|---|
| Short name | CoolhearInfo |
| Prefix | 70:88:6B:9/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 70:88:6B:90:00:00 – 70:88:6B:9F:FF:FF |
| Notations | 70:88:6B:90:00:0070-88-6B-90-00-007088.6b90.000070886B900000 |
Frequently asked questions
Which vendor does MAC address 70:88:6B:9 belong to?
MAC addresses starting with 70:88:6B:9 are assigned to Shenzhen Coolhear Information Technology Co., Ltd. according to the IEEE registry (prefix length 28 bits).
How many addresses does block 70:88:6B:9 contain?
The block contains 1,048,576 addresses from 70:88:6B:90:00:00 to 70:88:6B:9F:FF:FF.
Is 70:88:6B:9 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.