This service webscrap cidr of ipv4 address of all the country of the globe from ipverse github repo. Then it calculates the first and last range of the cidr. After that it sort the ip addresses based on cidr and store it to redis.
The ips' stored in database like below:
{
"values": [
{
"cidr": "1.0.0.0/24",
"country": "AU",
"first_host": "1.0.0.0",
"last_host": "1.0.0.0"
},
{
"cidr": "1.0.1.0/24",
"country": "CN",
"first_host": "1.0.1.0",
"last_host": "1.0.1.0"
},
{
"cidr": "1.0.2.0/23",
"country": "CN",
"first_host": "1.0.2.0",
"last_host": "1.0.3.255"
},
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]
}