Checks IP Range to see if it is in the AWS IP Ranges (and what it is assigned to)

whatisthisip.py

#!/usr/bin/env python
import requests
import ipaddr

# Get the AWS IP address ranges https://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html
ip_ranges = requests.get('https://ip-ranges.amazonaws.com/ip-ranges.json').json()['prefixes']

# Get the CIDR to check from from the user
cidrtocheck = input("Enter your CIDR to check... ")
range = ipaddr.IPNetwork(cidrtocheck) # Turn it into IP Network Class

# For each of the AWS IP Ranges...
for i in ip_ranges:
    awsrange = ipaddr.IPNetwork(i['ip_prefix']) # Get the AWS IP Range
    if range.overlaps(awsrange):
        print(i) # Check if it overlaps and if so print it out