This is a universally administered unicast address with a registered vendor prefix.
MAC addressE0:3C:1C:90:00:00
OUIE0:3C:1C
Vendor address2F, Block C, Bld. 20, No. 2388 Chenhang Road, Minhang District Shanghai Shanghai CN 201100
Block rangeE0:3C:1C:90:00:00– E0:3C:1C:9F: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-64E2:3C:1C:FF:FE:90:00:00
Possible IPv6 link-local derivationfe80::e23c:1cff:fe90:0

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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