At what OSI layer does IP operate?

#IP operates at the OSI network layer (layer 3).

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#Detailed explanation

IP (Internet Protocol) is a protocol that performs the tasks of logical addressing and routing, which are exactly the functions of the OSI network layer (Network Layer, L3).

At layer 3, the following happens:

• determining IP addresses (IPv4 / IPv6)
• choosing a route (routing)
• delivering packets between networks
• working with ICMP and TTL

All these functions are exactly the domain of OSI L3.