MAC prefix AC:4D:D9

Extreme Networks, Inc.

VendorExtreme Networks, Inc.
Short nameExtremeNetwo
PrefixAC:4D:D9/24
Block typeMA-L (/24, 16,777,216 addresses)
Address rangeAC:4D:D9:00:00:00 – AC:4D:D9:FF:FF:FF
NotationsAC:4D:D9:00:00:00
AC-4D-D9-00-00-00
ac4d.d900.0000
AC4DD9000000

Frequently asked questions

Which vendor does MAC address AC:4D:D9 belong to?

MAC addresses starting with AC:4D:D9 are assigned to Extreme Networks, Inc. according to the IEEE registry (prefix length 24 bits).

How many addresses does block AC:4D:D9 contain?

The block contains 16,777,216 addresses from AC:4D:D9:00:00:00 to AC:4D:D9:FF:FF:FF.

Is AC:4D:D9 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 Extreme Networks, Inc. have?

Extreme Networks, Inc. holds 100 registered prefixes in total – the full list is on the vendor page.

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