MAC address A8:A9:13: manufacturer GN Hearing A/S
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Testar grátis 14 dias →The MAC address A8:A9:13 (or A8A913, without separators) identifies a device made by GN Hearing A/S. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with A8:A9:13?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix A8:A9:13 is registered to GN Hearing A/S. Any device whose MAC starts with A8:A9:13 (for example, A8:A9:13:1A: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 GN Hearing A/S MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there. GN Hearing A/S has 3 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 A8:A9:13?
The prefix A8:A9:13 (A8A913) is registered with the IEEE to GN Hearing A/S.
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 A8:A9:13 MAC from GN Hearing A/S?
Yes. Any MAC starting with A8:A9:13 was assigned to GN Hearing A/S by the IEEE, though the final product may be sold under another brand.