MAC address C8:87:3B: manufacturer Net Optics
Monitore os PCs da sua empresa em tempo real, com dados objetivos.
Testar grátis 14 dias →The MAC address C8:87:3B (or C8873B, without separators) identifies a device made by Net Optics. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with C8:87:3B?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix C8:87:3B is registered to Net Optics. Any device whose MAC starts with C8:87:3B (for example, C8:87:3B: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 Net Optics 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.
Prefere falar com a gente antes de instalar?
Deixe seus dados e um especialista mostra, no seu contexto, como o PC Monitor ajuda a resolver isso na sua empresa. Sem compromisso.
Perguntas frequentes
Who owns MAC address C8:87:3B?
The prefix C8:87:3B (C8873B) is registered with the IEEE to Net Optics.
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 C8:87:3B MAC from Net Optics?
Yes. Any MAC starting with C8:87:3B was assigned to Net Optics by the IEEE, though the final product may be sold under another brand.