This is a universally administered unicast address with a registered vendor prefix.
MAC addressE4:8F:09:00:00:00
OUIE4:8F:09
Vendor addressAm Kabellager 5-7 Koeln / Cologne DE 51063
Block rangeE4:8F:09:00:00:00– E4:8F:09:FF:FF:FF
Address capacity16,777,216
TransmissionUnicast: addressed to a single device
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
RandomizationNot randomized
Derived modified EUI-64E6:8F:09:FF:FE:00:00:00
Possible IPv6 link-local derivationfe80::e68f:9ff:fe00:0

The EUI-64 and IPv6 link-local fields are a mathematical derivation from this MAC address. They don't confirm the device currently uses that IPv6 address.

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