MAC address 20:D5:C2: manufacturer Espressif Systems (Singapore) Pte. Ltd
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Testar grátis 14 dias →The MAC address 20:D5:C2 (or 20D5C2, without separators) identifies a device made by Espressif Systems (Singapore) Pte. Ltd. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with 20:D5:C2?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix 20:D5:C2 is registered to Espressif Systems (Singapore) Pte. Ltd. Any device whose MAC starts with 20:D5:C2 (for example, 20:D5:C2:1A:2B:3C) was made by this company.
Which devices use the prefix 20:D5:C2
Espressif Systems (Singapore) Pte. Ltd works in módulos IoT. A device with a MAC starting with 20:D5:C2 is usually something like os populares chips ESP32 e ESP8266 de casa inteligente. Confirm by the device name on your network.
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 Espressif Systems (Singapore) Pte. Ltd MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there. Espressif Systems (Singapore) Pte. Ltd has 11 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 20:D5:C2?
The prefix 20:D5:C2 (20D5C2) is registered with the IEEE to Espressif Systems (Singapore) Pte. Ltd.
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 20:D5:C2 MAC from Espressif Systems (Singapore) Pte. Ltd?
Yes. Any MAC starting with 20:D5:C2 was assigned to Espressif Systems (Singapore) Pte. Ltd by the IEEE, though the final product may be sold under another brand.