This is a universally administered unicast address with a registered vendor prefix.
MAC address70:88:6B:40:00:00
OUI70:88:6B
Vendor address640, Saedo-cho Yokohama-city Kanagawa JP 224-0054
Block range70:88:6B:40:00:00– 70:88:6B:4F:FF:FF
Address capacity1,048,576
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-6472:88:6B:FF:FE:40:00:00
Possible IPv6 link-local derivationfe80::7288:6bff:fe40:0

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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