MAC prefix CC:EF:03
Hunan Keyshare Communication Technology Co., Ltd.
| Vendor | Hunan Keyshare Communication Technology Co., Ltd. |
|---|---|
| Short name | HunanKeyshar |
| Prefix | CC:EF:03/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | CC:EF:03:00:00:00 – CC:EF:03:FF:FF:FF |
| Notations | CC:EF:03:00:00:00CC-EF-03-00-00-00ccef.0300.0000CCEF03000000 |
Frequently asked questions
Which vendor does MAC address CC:EF:03 belong to?
MAC addresses starting with CC:EF:03 are assigned to Hunan Keyshare Communication Technology Co., Ltd. according to the IEEE registry (prefix length 24 bits).
How many addresses does block CC:EF:03 contain?
The block contains 16,777,216 addresses from CC:EF:03:00:00:00 to CC:EF:03:FF:FF:FF.
Is CC:EF:03 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.