These are not just random codes, they are commonly expressed as numbers, for example, 192.558.1.28 (A typical example of an IP address). They are produced mathematically by IANA.

Some IP address number ranges are reserved for specific uses -- for example, those beginning with 192.168 are usually reserved for local networks, and to avoid confusion they are not used on the ...

The original IP addressing scheme (IPV4) uses four groups of numbers ranging from 0 to 255 (example 216.064.210.028) this gives you a total of addresses available worldwide 4,294,967,296.

For example, a home office network might use addresses in the range of 192.168.1.1 to 192.168.1.50. The address "101.5.40.1" is out of the network's range and would be an invalid address.

For example, BleepingComputer's IPv4 address represented in decimal format is 104.20.59.209, but the same can be expressed in the octal format as, 0150.0024.0073.0321.

If you have a phone with LTE, for example, turning off Wi-Fi so it uses that LTE signal will compel it to use a different IP address. You can also connect to a different Wi-Fi network.