04:C9:91:7F:FF:FF - Phistek INC.

Phistek INC. MA-L

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

MAC address04:C9:91:7F:FF:FF

OUI04:C9:91

Vendor address5 Floor, No.188, Section 3, Datong Road New Taipei City TW 221

Country🇹🇼 Taiwan

Block range04:C9:91:00:00:00– 04:C9:91: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-6406:C9:91:FF:FE:7F:FF:FF

Possible IPv6 link-local derivationfe80::6c9:91ff: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.

Have a list, not just one address? Paste it and extract every MAC address in it →

New to MAC addresses? What they are and how they're structured →