This is a universally administered unicast address with a registered vendor prefix.
MAC address1C:91:9D:7F:FF:FF
OUI1C:91:9D
Vendor addressF5, Building B, North Block, Gaosheng Tech Park, No. 84 Zhongli Road, Nancheng District, Dongguan Ci dongguan guangdong CN 523000
Country🇨🇳 China
Block range1C:91:9D:00:00:00– 1C:91:9D: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-641E:91:9D:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::1e91:9dff:fe7f: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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