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/158.45.0.0/22",
                    "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/158.45.0.0/22",
                    "rel": "inaccuracy-report",
                    "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
                    "type": "text/html"
                }
            ]
        }
    ],
    "country": "AU",
    "name": "ERX-NETBLOCK",
    "status": [
        "administrative"
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2008-09-04T06:51:29Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2021-05-18T04:28:10Z"
        }
    ],
    "links": [
        {
            "value": "https://rdap.apnic.net/ip/158.45.0.0/22",
            "rel": "self",
            "href": "https://rdap.apnic.net/ip/158.0.0.0/8",
            "type": "application/rdap+json"
        }
    ],
    "remarks": [
        {
            "description": [
                "Early registration addresses"
            ],
            "title": "description"
        },
        {
            "description": [
                "------------------------------------------------------",
                "Important:",
                "",
                "Networks in this range were allocated by InterNIC",
                "prior to the formation of Regional Internet",
                "Registries (RIRs): AfriNIC, APNIC, ARIN, LACNIC and RIPE NCC.",
                "",
                "Address ranges from this historical space have now",
                "been transferred to the appropriate RIR database.remarks:",
                "If your search has returned this record, it means the",
                "address range is not administered by APNIC.",
                "",
                "Instead, please search one of the following databases:",
                "",
                "- AfriNIC (Africa)",
                "website: http://www.afrinic.net/",
                "command line: whois.afrinic.net",
                "",
                "- ARIN (Northern America)",
                "website: http://www.arin.net/",
                "command line: whois.arin.net",
                "",
                "- LACNIC (Latin America and the Carribean)",
                "website: http://www.lacnic.net/",
                "command line: whois.lacnic.net",
                "",
                "- RIPE NCC (Europe)",
                "website: http://www.ripe.net/",
                "command line: whois.ripe.net",
                "",
                "For information on the Early Registration Transfer",
                "(ERX) project, see:",
                "",
                "http://www.apnic.net/db/erx",
                "",
                "------------------------------------------------------"
            ],
            "title": "remarks"
        }
    ],
    "entities": [
        {
            "roles": [
                "technical",
                "administrative"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2008-09-04T07:54:16Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2018-06-22T22:34:30Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/158.45.0.0/22",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/IANA1-AP",
                    "type": "application/rdap+json"
                }
            ],
            "remarks": [
                {
                    "description": [
                        "For more information on IANA services",
                        "go to IANA web site at http://www.iana.org."
                    ],
                    "title": "remarks"
                }
            ],
            "handle": "IANA1-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Internet Assigned Numbers Authority"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "see http://www.iana.org."
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ]
                ]
            ]
        },
        {
            "roles": [
                "abuse"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2010-11-11T01:36:22Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-11-18T00:26:21Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/158.45.0.0/22",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/IRT-APNIC-AP",
                    "type": "application/rdap+json"
                }
            ],
            "remarks": [
                {
                    "description": [
                        "APNIC is a Regional Internet Registry.",
                        "We do not operate the referring network and",
                        "are unable to investigate complaints of network abuse.",
                        "For information about IRT, see www.apnic.net/irt",
                        "helpdesk@apnic.net was validated on 2020-02-03"
                    ],
                    "title": "remarks"
                }
            ],
            "handle": "IRT-APNIC-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "IRT-APNIC-AP"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "Brisbane, Australia"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "helpdesk@apnic.net"
                    ],
                    [
                        "email",
                        {
                            "pref": "1"
                        },
                        "text",
                        "helpdesk@apnic.net"
                    ]
                ]
            ]
        }
    ],
    "handle": "158.0.0.0 - 158.255.255.255",
    "type": "ALLOCATED PORTABLE",
    "startAddress": "158.0.0.0",
    "endAddress": "158.255.255.255",
    "objectClassName": "ip network",
    "ipVersion": "v4",
    "cidr0_cidrs": [
        {
            "v4prefix": "158.0.0.0",
            "length": 8
        }
    ],
    "port43": "whois.apnic.net"
}