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/61.238.78.0/24",
                    "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/61.238.78.0/24",
                    "rel": "inaccuracy-report",
                    "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
                    "type": "text/html"
                }
            ]
        }
    ],
    "country": "HK",
    "name": "HKBN",
    "status": [
        "active"
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2008-09-04T06:53:39Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2020-07-15T13:09:34Z"
        }
    ],
    "links": [
        {
            "value": "https://rdap.apnic.net/ip/61.238.78.0/24",
            "rel": "self",
            "href": "https://rdap.apnic.net/ip/61.238.0.0/15",
            "type": "application/rdap+json"
        }
    ],
    "remarks": [
        {
            "description": [
                "Hong Kong Broadband Network Ltd"
            ],
            "title": "description"
        },
        {
            "description": [
                "This object can only be modified by APNIC hostmaster",
                "If you wish to modify this object details please",
                "send email to hostmaster@apnic.net with your organisation",
                "account name in the subject line."
            ],
            "title": "remarks"
        }
    ],
    "entities": [
        {
            "roles": [
                "abuse"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2012-05-16T06:32:40Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2026-10-02T02:08:12Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/61.238.78.0/24",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/IRT-HKBN-HK",
                    "type": "application/rdap+json"
                }
            ],
            "remarks": [
                {
                    "description": [
                        "abuse@hkbn.com.hk was validated on 2026-06-03",
                        "hostmaster@hkbn.com.hk was validated on 2026-10-02"
                    ],
                    "title": "remarks"
                }
            ],
            "handle": "IRT-HKBN-HK",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "IRT-HKBN-HK"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "15/F Trans Asia Centre\n18 Kin Hong Street, Kwai Chung\nN.T."
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "hostmaster@hkbn.com.hk"
                    ],
                    [
                        "email",
                        {
                            "pref": "1"
                        },
                        "text",
                        "abuse@hkbn.com.hk"
                    ]
                ]
            ]
        },
        {
            "roles": [
                "administrative",
                "technical"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2008-09-04T07:29:17Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2014-11-11T08:51:41Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/61.238.78.0/24",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/MH84-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "MH84-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Master Host"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "adr",
                        {
                            "label": "15/F, 18 Kin Hong Street, Trans Asia Centre, Kwai Chung, Kln"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+852-3999-3888"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+852-8167-7020"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "hostmaster@hkbn.com.hk"
                    ],
                    [
                        "email",
                        {
                            "pref": "1"
                        },
                        "text",
                        "abuse@hkbn.net"
                    ]
                ]
            ]
        },
        {
            "roles": [
                "registrant"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2017-08-21T12:56:42Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-02-24T12:57:31Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/61.238.78.0/24",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/ORG-HKBN1-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "ORG-HKBN1-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Hong Kong Broadband Network Limited"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ],
                    [
                        "adr",
                        {
                            "label": "15/F Trans Asia Centre\n18 Kin Hong Street"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+852-3999-3888"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+852-8167-7020"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "nocsn@hkbn.com.hk"
                    ]
                ]
            ]
        }
    ],
    "handle": "61.238.0.0 - 61.239.255.255",
    "type": "ALLOCATED PORTABLE",
    "startAddress": "61.238.0.0",
    "endAddress": "61.239.255.255",
    "objectClassName": "ip network",
    "ipVersion": "v4",
    "cidr0_cidrs": [
        {
            "v4prefix": "61.238.0.0",
            "length": 15
        }
    ],
    "port43": "whois.apnic.net"
}