This is a universally administered unicast address with a registered vendor prefix.
MAC addressCC:D3:9D:8F:FF:FF
OUICC:D3:9D
Vendor address67 Batterymarch Street, Floor 4 Boston US 02110
Block rangeCC:D3:9D:80:00:00– CC:D3:9D:8F: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-64CE:D3:9D:FF:FE:8F:FF:FF
Possible IPv6 link-local derivationfe80::ced3:9dff:fe8f:ffff

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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