What is IP address?
 

IP or Internet Protocol Address address identifies and gives us the ability to communicate with each other on a computer network. It's a unique identifier of a connection to a local network or the Internet. 
Your IP address gives you some pretty detailed information about your location:
⦁    Town
⦁    Country
⦁    State / Region
⦁    Postcode
The IP address gives ISP(Internet service provider) and location on a map.
Knowing my IP address is useful for online woking, education, gaming, tech support when we are using remote desktop connections, connecting to camera anonymously or even running an email server. All computers with IP addresses have an IPv4 address, and many are starting to use the new IPv6 address system as well. IP address lookup is one of free tools in 101toolbox with which you can check your public IPv4 and IPv6 address and get all the information you need. Here is the difference between them. IPv4 uses 32 binary bits to create a single unique address on the network. An IPv4 address is expressed by four numbers separated by dots. Each number is the decimal (base-10) representation for an eight-digit binary (base-2) number, also called an octet.  IPv6 uses 128 binary bits to create a single unique address on the network. An IPv6 address is expressed by eight groups of hexadecimal (base-16) numbers separated by colons. Groups of numbers that contain all zeros are often omitted to save space, leaving a colon separator to mark the gap.
Starting from the 90s of the XX century, classified  routing has been widely supplanted by classless routing, in which the number of addresses in a network is determined only and exclusively by the subnet mask.
How to determine if my IP address is special?
In the IP protocol, there are several conventions about the special interpretation of IP addresses:
⦁    if the entire IP address consists only of binary zeros, then it denotes the address of the host that generated this packet; this mode is used only in some ICMP messages;
⦁    if the network number field contains only zeros, then by default it is assumed that the destination node belongs to the same network as the node that sent the packet;
⦁    If all binary digits of the IP address are equal to one, then a packet with this kind of destination address must be sent to all hosts of the same network as the source of the packet. This broadcast is called limited broadcast.
⦁    If the destination host number field contains only ones, then a packet with such an address is sent to all hosts with the specified network number. For example, on the 192.190.21.0 network with a 255.255.255.0 mask, a packet with the 192.190.21.255 address is delivered to all the hosts on this network.
An IP address is dynamic if it is assigned automatically when the device connects to the network and is used for a limited amount of time, usually before the connection session ends.
What do you think now? Is it important to know your IP address when your Internet service provider knows almost everything about you?