MAC address A0:91:CA: manufacturer Nokia Solutions and Networks GmbH & Co. KG
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Testar grátis 14 dias →The MAC address A0:91:CA (or A091CA, without separators) identifies a device made by Nokia Solutions and Networks GmbH & Co. KG. Here is what that means and how to recognize devices on your network.
Who owns the MAC starting with A0:91:CA?
The first three blocks of a MAC address form the OUI (Organizationally Unique Identifier), a code the IEEE assigns to each manufacturer. The prefix A0:91:CA is registered to Nokia Solutions and Networks GmbH & Co. KG. Any device whose MAC starts with A0:91:CA (for example, A0:91:CA:1A:2B:3C) was made by this company.
Which devices use the prefix A0:91:CA
Nokia Solutions and Networks GmbH & Co. KG works in redes e telecom. A device with a MAC starting with A0:91:CA is usually something like equipamentos de rede e telecom. 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 Nokia Solutions and Networks GmbH & Co. KG MAC you don't recognize could be a legitimate device (a phone, a TV, a camera) — or one that shouldn't be there. Nokia Solutions and Networks GmbH & Co. KG has 35 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 A0:91:CA?
The prefix A0:91:CA (A091CA) is registered with the IEEE to Nokia Solutions and Networks GmbH & Co. KG.
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 A0:91:CA MAC from Nokia Solutions and Networks GmbH & Co. KG?
Yes. Any MAC starting with A0:91:CA was assigned to Nokia Solutions and Networks GmbH & Co. KG by the IEEE, though the final product may be sold under another brand.