As is too often the case in network administration, “it depends”. For cellular data networks, much like home networks or school/enterprise networks, IP addresses are normally leased to the phone.

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Fix duplicate IP address conflicts on a DHCP network

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Nov 19, 2019 · Your home network router (or other DHCP server) keeps track of how long ago it issued your computers IP addresses. To make sure that the network does not run out of IP addresses, DHCP servers set a time limit called a lease for how long each computer can be guaranteed to keep their same address, after which the address will be re-assigned to the next device that tries to connect to it.

Want to make static IP for Wi-Fi users - TechSpot Forums Sep 21, 2012 hotComm FAQ: Assign Static IP Address (Windows XP) Each computer in a network has its own internal IP address. That IP address may be static, which means that it never changes.Or, as is likely if you share an Internet connection with other computers, the internal IP address may be assigned dynamically and may change from time to time. Note: in a network configuration, the internal IP is not the same as the IP assigned by your ISP. PHP: $_SERVER - Manual