MAC Address Lookup: 2A:5A:D4:10:09:38

No vendor assignment was found for 2A:5A:D4:10:09:38.

Address type: Locally administered, unicast address.

This address has the locally administered bit set. Phones, laptops, tablets, and some operating systems often use this pattern for randomized or private Wi-Fi addresses, so a global vendor assignment may not exist.

For randomized MAC addresses, the first six characters are not a reliable manufacturer ID. To identify a device, check the device settings, DHCP hostname, router client history, or the non-private hardware MAC shown by the operating system.

This full MAC address is canonicalized to the six-character prefix 2A:5A:D4 so similar device-specific URLs do not compete with each other.

Enter a full 48-bit MAC address or the first 6 to 12 hexadecimal characters of a vendor assignment. The lookup accepts compact, colon-separated, hyphen-separated, and space-separated input.

Many phones, tablets, laptops, and smart devices can use randomized or private MAC addresses on Wi-Fi networks. These addresses usually set the locally administered bit, which means the address was chosen by the device or operating system instead of assigned directly from an IEEE manufacturer prefix.

When a randomized MAC address is used, the vendor lookup may return no manufacturer even though the device is working normally. In that case, use router client names, DHCP history, device settings, or the device's non-private hardware MAC address for identification.

MAC address prefixes are assigned through IEEE registries such as MA-L, MA-M, and MA-S. A full device MAC address may include extra device-specific characters after the assigned vendor prefix, so full MAC address pages point search engines to the matched manufacturer prefix.