IP address
Each device connected to a computer network that makes use of the Internet Protocol is given an IP address, also known as an Internet Protocol address. It functions as an identifier that makes it possible for devices to find and connect with one another via a network.
IP address will look like the above given image. The number may vary.
Device port
An interface for physical or virtual communication that enables a device to connect to or communicate with other devices or networks is known as a device port. A device port is a specified endpoint for delivering or receiving data through a particular communication protocol in the context of networking and computer systems.
APN
Access Point Name is referred to as APN. It is a unique network configuration parameter that controls how mobile devices connect to the internet or to a mobile network operator's (MNO) data network when discussing mobile telecommunications and mobile devices.