MAC address 34:09:E9: manufacturer Harman/Becker Automotive Systems GmbH
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Testar grátis 14 dias →The MAC address 34:09:E9 (or 3409E9, without separators) identifies a device made by Harman/Becker Automotive Systems GmbH. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with 34:09:E9?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix 34:09:E9 is registered to Harman/Becker Automotive Systems GmbH. Any device whose MAC starts with 34:09:E9 (for example, 34:09:E9:1A:2B:3C) was made by this company.
What it means to see this device on your network
Knowing the manufacturer helps identify what is connected to your Wi-Fi or company network. A Harman/Becker Automotive Systems GmbH MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there. Harman/Becker Automotive Systems GmbH has 10 MAC prefixes registered with the IEEE (see others under "Read also").
How to see every device and vendor on your network
Looking up one MAC vendor at a time is tedious. Sentinela, by PC Monitor, automatically maps every device on your network, shows each one's vendor by MAC and flags suspicious devices and connections — running on your Windows. Meet Sentinela.
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Perguntas frequentes
Who owns MAC address 34:09:E9?
The prefix 34:09:E9 (3409E9) is registered with the IEEE to Harman/Becker Automotive Systems GmbH.
What is the OUI of a MAC address?
It is the first three blocks of the MAC (6 hex digits), which the IEEE assigns to each manufacturer.
Is every 34:09:E9 MAC from Harman/Becker Automotive Systems GmbH?
Yes. Any MAC starting with 34:09:E9 was assigned to Harman/Becker Automotive Systems GmbH by the IEEE, though the final product may be sold under another brand.