00:19:86:7F:FF:FF - Cheng Hongjian

Cheng Hongjian MA-L

This is a universally administered unicast address with a registered vendor prefix.

MAC address00:19:86:7F:FF:FF

OUI00:19:86

Vendor addressRm.2305B.Sege Plaza,Huaqiang North Rd., Shenzhen Guangdong US 518057

Country🇺🇸 United States

Block range00:19:86:00:00:00– 00:19:86: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-6402:19:86:FF:FE:7F:FF:FF

Possible IPv6 link-local derivationfe80::219:86ff: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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