iptoasn

readme.md

Downloads info about IP address blocks (v4 and v6) assignees from iptoasn.com database. Creates and takes over _tmp directory, creates/overwrites data.json file with JSON array of objects in format:

{
    "ip_range": ["<first-ip>", "<last-ip>"],
    "ip_version": <4|6>,
    "assigned": <true|false>, // is this block assigned to someone
    "as": { // autonomous system that the ip block is assigned to (or null in every field if this block is not assigned)
        "number": "<asn>", // the AS number (ASN)
        "name": "<name>", // the AS name
        "country": "<country-code>" // country that the AS belongs to, in ISO 3166-1 alpha-2 format
    }
}

iptoasn_download.sh

#!/bin/bash
mkdir _tmp
wget --quiet https://iptoasn.com/data/ip2asn-combined.tsv.gz -O _tmp/data.tsv.gz
gzip --decompress _tmp/data.tsv.gz
python3 << END
import json, ipaddress
def ip_version(ip):
    return 4 if type(ipaddress.ip_address(ip)) is ipaddress.IPv4Address else 6
with open("_tmp/data.tsv", "r") as f:
    data = [line.strip().split("\t") for line in f.read().split("\n") if line.strip() != ""]
data = [
    {
        "ip_range": [entry[0], entry[1]],
        "ip_version": ip_version(entry[0]),
        "assigned": entry[2] != "0",
        "as": {
            "number": entry[2] if entry[2] != "0" else None,
            "name": entry[4] if entry[4] != "Not routed" else None,
            "country": entry[3].lower() if entry[3].lower() != "none" else None
        }
    }
    for entry in data
]
with open("data.json", "w") as f:
    json.dump(data, f)
END
rm -rf _tmp