MAC prefix 20:B3:7F:A
ShenZhen C&D Electronics CO.Ltd.
| Vendor | ShenZhen C&D Electronics CO.Ltd. |
|---|---|
| Short name | C&DElectroni |
| Prefix | 20:B3:7F:A/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 20:B3:7F:A0:00:00 – 20:B3:7F:AF:FF:FF |
| Notations | 20:B3:7F:A0:00:0020-B3-7F-A0-00-0020b3.7fa0.000020B37FA00000 |
Frequently asked questions
Which vendor does MAC address 20:B3:7F:A belong to?
MAC addresses starting with 20:B3:7F:A are assigned to ShenZhen C&D Electronics CO.Ltd. according to the IEEE registry (prefix length 28 bits).
How many addresses does block 20:B3:7F:A contain?
The block contains 1,048,576 addresses from 20:B3:7F:A0:00:00 to 20:B3:7F:AF:FF:FF.
Is 20:B3:7F:A 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 ShenZhen C&D Electronics CO.Ltd. have?
ShenZhen C&D Electronics CO.Ltd. holds 5 registered prefixes in total – the full list is on the vendor page.