MAC prefix A4:E3:91
Deny Fontaine
| Vendor | Deny Fontaine |
|---|---|
| Short name | DenyFontaine |
| Prefix | A4:E3:91/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | A4:E3:91:00:00:00 – A4:E3:91:FF:FF:FF |
| Notations | A4:E3:91:00:00:00A4-E3-91-00-00-00a4e3.9100.0000A4E391000000 |
Frequently asked questions
Which vendor does MAC address A4:E3:91 belong to?
MAC addresses starting with A4:E3:91 are assigned to Deny Fontaine according to the IEEE registry (prefix length 24 bits).
How many addresses does block A4:E3:91 contain?
The block contains 16,777,216 addresses from A4:E3:91:00:00:00 to A4:E3:91:FF:FF:FF.
Is A4:E3:91 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.