MAC address F8:20:55: manufacturer Green Information System
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Testar grátis 14 dias →The MAC address F8:20:55 (or F82055, without separators) identifies a device made by Green Information System. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with F8:20:55?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix F8:20:55 is registered to Green Information System. Any device whose MAC starts with F8:20:55 (for example, F8:20:55:1A: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 Green Information System MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there.
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 F8:20:55?
The prefix F8:20:55 (F82055) is registered with the IEEE to Green Information System.
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 F8:20:55 MAC from Green Information System?
Yes. Any MAC starting with F8:20:55 was assigned to Green Information System by the IEEE, though the final product may be sold under another brand.