MAC prefix A4:CF:03

Realme Chongqing Mobile Telecommunications Corp.,Ltd.

VendorRealme Chongqing Mobile Telecommunications Corp.,Ltd.
Short nameRealmeChongq
PrefixA4:CF:03/24
Block typeMA-L (/24, 16,777,216 addresses)
Address rangeA4:CF:03:00:00:00 – A4:CF:03:FF:FF:FF
NotationsA4:CF:03:00:00:00
A4-CF-03-00-00-00
a4cf.0300.0000
A4CF03000000

Frequently asked questions

Which vendor does MAC address A4:CF:03 belong to?

MAC addresses starting with A4:CF:03 are assigned to Realme Chongqing Mobile Telecommunications Corp.,Ltd. according to the IEEE registry (prefix length 24 bits).

How many addresses does block A4:CF:03 contain?

The block contains 16,777,216 addresses from A4:CF:03:00:00:00 to A4:CF:03:FF:FF:FF.

Is A4:CF: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.

Which other MAC prefixes does Realme Chongqing Mobile Telecommunications Corp.,Ltd. have?

Realme Chongqing Mobile Telecommunications Corp.,Ltd. holds 58 registered prefixes in total – the full list is on the vendor page.

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