Python program to determine if the given IP Address is Public or Private using ipaddress module

Python program to determine if the given IPv4 Address is reserved using ipaddress module

Last Updated : 10 Jul, 2020

Given a IPv4 Address, the task is to determine whether it is reserved (i.e belongs to class E) or not.

What is class E?

IP addresses belonging to class E are reserved for experimental and research purposes. IP addresses of class E range from 240.0.0.0 – 255.255.255.254. This class doesn’t have any sub-net mask. The higher-order bits of the first octet of class E is always set to 1111.

Examples:

Input : 10.0.0.1
Output : Not Reserved

Input : 241.0.0.133
Output : Reserved

To implement it, we will use the is_reserved method of ipaddress module of Python3.3.

# importing ip_address 
# from ipaddress module 
from ipaddress import ip_address 
  
def reservedIPAddress(IP: str) -> str: 
    return "Reserved" if (ip_address(IP).is_reserved) else "Not Reserved"
      
if __name__ == '__main__' :  
  
    # Not Reserved 
    print(reservedIPAddress('10.0.0.1'))  
      
    # Reserved 
    print(reservedIPAddress('241.0.0.133'))  

Output :

Not Reserved
Reserved

Python program to determine if the given IP Address is Public or Private using ipaddress module

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