38:14:1B:7F:FF:FF - Secure Letter Inc.

Secure Letter Inc. MA-L

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

MAC address38:14:1B:7F:FF:FF

OUI38:14:1B

Vendor address223, Yeoksam-ro Gangnam-gu Seoul KR 06224

Country🇰🇷 South Korea

Block range38:14:1B:00:00:00– 38:14:1B: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-643A:14:1B:FF:FE:7F:FF:FF

Possible IPv6 link-local derivationfe80::3a14:1bff: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 →