Domain, IP & ASN lookup.

{
    "rdapConformance": [
        "history_version_0",
        "nro_rdap_profile_0",
        "cidr0",
        "rdap_level_0"
    ],
    "notices": [
        {
            "title": "Source",
            "description": [
                "Objects returned came from source",
                "APNIC"
            ]
        },
        {
            "title": "Terms and Conditions",
            "description": [
                "This is the APNIC WHOIS Database query service. The objects are in RDAP format."
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/118.71.252.0/22",
                    "rel": "terms-of-service",
                    "href": "http://www.apnic.net/db/dbcopyright.html",
                    "type": "text/html"
                }
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit: "
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/118.71.252.0/22",
                    "rel": "inaccuracy-report",
                    "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
                    "type": "text/html"
                }
            ]
        }
    ],
    "country": "vn",
    "name": "fpt-net",
    "status": [
        "active"
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2008-09-23T08:00:35Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2008-09-23T08:00:35Z"
        }
    ],
    "links": [
        {
            "value": "https://rdap.apnic.net/ip/118.71.252.0/22",
            "rel": "self",
            "href": "https://rdap.apnic.net/ip/118.71.240.0/20",
            "type": "application/rdap+json"
        }
    ],
    "remarks": [
        {
            "description": [
                "Vung dia chi IP cap cho dich vu IPTV tai Hai Phong"
            ],
            "title": "description"
        }
    ],
    "entities": [
        {
            "roles": [
                "technical",
                "administrative"
            ]
        }
    ],
    "handle": "118.71.240.0 - 118.71.255.255",
    "type": "ASSIGNED NON-PORTABLE",
    "startAddress": "118.71.240.0",
    "endAddress": "118.71.255.255",
    "objectClassName": "ip network",
    "ipVersion": "v4",
    "cidr0_cidrs": [
        {
            "v4prefix": "118.71.240.0",
            "length": 20
        }
    ],
    "port43": "whois.apnic.net"
}