{
    "query": "166.100.0.0",
    "original": "166.100.0.0",
    "type": "ipv4",
    "outcome": "found",
    "sources": [
        {
            "role": "registry",
            "protocol": "RDAP",
            "endpoint": "https://rdap.apnic.net/ip/166.100.0.0",
            "trace": [
                "https://rdap.arin.net/registry/ip/166.100.0.0",
                "https://rdap.apnic.net/ip/166.100.0.0"
            ],
            "http_status": 200,
            "outcome": "found",
            "raw": "{\"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/166.100.0.0\",\"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/166.100.0.0\",\"rel\":\"inaccuracy-report\",\"href\":\"https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form\",\"type\":\"text/html\"}]}],\"country\":\"JP\",\"name\":\"NMS\",\"status\":[\"active\"],\"events\":[{\"eventAction\":\"registration\",\"eventDate\":\"2008-09-04T06:53:00Z\"},{\"eventAction\":\"last changed\",\"eventDate\":\"2020-07-22T06:38:35Z\"}],\"links\":[{\"value\":\"https://rdap.apnic.net/ip/166.100.0.0\",\"rel\":\"self\",\"href\":\"https://rdap.apnic.net/ip/166.100.0.0/16\",\"type\":\"application/rdap+json\"}],\"remarks\":[{\"description\":[\"AT&T Japan K.K.\"],\"title\":\"description\"}],\"entities\":[{\"roles\":[\"abuse\"],\"events\":[{\"eventAction\":\"registration\",\"eventDate\":\"2010-11-15T10:22:50Z\"},{\"eventAction\":\"last changed\",\"eventDate\":\"2026-07-27T07:55:25Z\"}],\"links\":[{\"value\":\"https://rdap.apnic.net/ip/166.100.0.0\",\"rel\":\"self\",\"href\":\"https://rdap.apnic.net/entity/IRT-ATT-OPENNET-AP\",\"type\":\"application/rdap+json\"}],\"remarks\":[{\"description\":[\"peering@intl.att.com was validated on 2026-07-03\"],\"title\":\"remarks\"}],\"handle\":\"IRT-ATT-OPENNET-AP\",\"objectClassName\":\"entity\",\"vcardArray\":[\"vcard\",[[\"version\",{},\"text\",\"4.0\"],[\"fn\",{},\"text\",\"IRT-ATT-OPENNET-AP\"],[\"kind\",{},\"text\",\"group\"],[\"adr\",{\"label\":\"All of AP\"},\"text\",[\"\",\"\",\"\",\"\",\"\",\"\",\"\"]],[\"email\",{},\"text\",\"peering@intl.att.com\"],[\"email\",{\"pref\":\"1\"},\"text\",\"peering@intl.att.com\"]]]},{\"roles\":[\"registrant\"],\"events\":[{\"eventAction\":\"registration\",\"eventDate\":\"2017-08-08T23:26:59Z\"},{\"eventAction\":\"last changed\",\"eventDate\":\"2023-09-05T02:14:44Z\"}],\"links\":[{\"value\":\"https://rdap.apnic.net/ip/166.100.0.0\",\"rel\":\"self\",\"href\":\"https://rdap.apnic.net/entity/ORG-AJK1-AP\",\"type\":\"application/rdap+json\"}],\"handle\":\"ORG-AJK1-AP\",\"objectClassName\":\"entity\",\"vcardArray\":[\"vcard\",[[\"version\",{},\"text\",\"4.0\"],[\"fn\",{},\"text\",\"AT&T Japan K.K.\"],[\"kind\",{},\"text\",\"org\"],[\"adr\",{\"label\":\"Toranomon Twin Bldg\\n2-10-1 Toranomon\\nAT&T PO: PR515809\"},\"text\",[\"\",\"\",\"\",\"\",\"\",\"\",\"\"]],[\"tel\",{\"type\":\"voice\"},\"text\",\"+81-3-3582-2304\"],[\"tel\",{\"type\":\"fax\"},\"text\",\"+81-3-3505-1771\"],[\"email\",{},\"text\",\"peering@intl.att.com\"]]]},{\"roles\":[\"technical\",\"administrative\"],\"events\":[{\"eventAction\":\"registration\",\"eventDate\":\"2008-09-04T07:54:16Z\"},{\"eventAction\":\"last changed\",\"eventDate\":\"2015-08-10T11:30:02Z\"}],\"links\":[{\"value\":\"https://rdap.apnic.net/ip/166.100.0.0\",\"rel\":\"self\",\"href\":\"https://rdap.apnic.net/entity/AD103-AP\",\"type\":\"application/rdap+json\"}],\"remarks\":[{\"description\":[\"Send spam or abuse report to abuse@att.net\",\"and please include detailed information and time.\",\"Send general query to IPAddadmin@jp.att.com.\"],\"title\":\"remarks\"}],\"handle\":\"AD103-AP\",\"objectClassName\":\"entity\",\"vcardArray\":[\"vcard\",[[\"version\",{},\"text\",\"4.0\"],[\"fn\",{},\"text\",\"AGNS DOMCUST\"],[\"kind\",{},\"text\",\"group\"],[\"adr\",{\"label\":\"Shinnikko-Building, 2-10-1,\\nToranomon, Minato-ku,\\nTOKYO, 105-0001, Japan\"},\"text\",[\"\",\"\",\"\",\"\",\"\",\"\",\"\"]],[\"tel\",{\"type\":\"voice\"},\"text\",\"+81-3-3584-4776\"],[\"tel\",{\"type\":\"fax\"},\"text\",\"+81-3-3505-1771\"],[\"email\",{},\"text\",\"IPAddadmin@jp.att.com\"]]]}],\"handle\":\"166.100.0.0 - 166.100.255.255\",\"type\":\"ALLOCATED PORTABLE\",\"startAddress\":\"166.100.0.0\",\"endAddress\":\"166.100.255.255\",\"objectClassName\":\"ip network\",\"ipVersion\":\"v4\",\"cidr0_cidrs\":[{\"v4prefix\":\"166.100.0.0\",\"length\":16}],\"port43\":\"whois.apnic.net\"}",
            "object": {
                "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/166.100.0.0",
                                "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/166.100.0.0",
                                "rel": "inaccuracy-report",
                                "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
                                "type": "text/html"
                            }
                        ]
                    }
                ],
                "country": "JP",
                "name": "NMS",
                "status": [
                    "active"
                ],
                "events": [
                    {
                        "eventAction": "registration",
                        "eventDate": "2008-09-04T06:53:00Z"
                    },
                    {
                        "eventAction": "last changed",
                        "eventDate": "2020-07-22T06:38:35Z"
                    }
                ],
                "links": [
                    {
                        "value": "https://rdap.apnic.net/ip/166.100.0.0",
                        "rel": "self",
                        "href": "https://rdap.apnic.net/ip/166.100.0.0/16",
                        "type": "application/rdap+json"
                    }
                ],
                "remarks": [
                    {
                        "description": [
                            "AT&T Japan K.K."
                        ],
                        "title": "description"
                    }
                ],
                "entities": [
                    {
                        "roles": [
                            "registrant"
                        ],
                        "events": [
                            {
                                "eventAction": "registration",
                                "eventDate": "2017-08-08T23:26:59Z"
                            },
                            {
                                "eventAction": "last changed",
                                "eventDate": "2023-09-05T02:14:44Z"
                            }
                        ],
                        "links": [
                            {
                                "value": "https://rdap.apnic.net/ip/166.100.0.0",
                                "rel": "self",
                                "href": "https://rdap.apnic.net/entity/ORG-AJK1-AP",
                                "type": "application/rdap+json"
                            }
                        ],
                        "handle": "ORG-AJK1-AP",
                        "objectClassName": "entity",
                        "vcardArray": [
                            "vcard",
                            [
                                [
                                    "version",
                                    [],
                                    "text",
                                    "4.0"
                                ],
                                [
                                    "fn",
                                    [],
                                    "text",
                                    "AT&T Japan K.K."
                                ],
                                [
                                    "kind",
                                    [],
                                    "text",
                                    "org"
                                ],
                                [
                                    "adr",
                                    {
                                        "label": "Toranomon Twin Bldg\n2-10-1 Toranomon\nAT&T PO: PR515809"
                                    },
                                    "text",
                                    [
                                        "",
                                        "",
                                        "",
                                        "",
                                        "",
                                        "",
                                        ""
                                    ]
                                ],
                                [
                                    "tel",
                                    {
                                        "type": "voice"
                                    },
                                    "text",
                                    "+81-3-3582-2304"
                                ],
                                [
                                    "tel",
                                    {
                                        "type": "fax"
                                    },
                                    "text",
                                    "+81-3-3505-1771"
                                ],
                                [
                                    "email",
                                    [],
                                    "text",
                                    "peering@intl.att.com"
                                ]
                            ]
                        ]
                    },
                    {
                        "roles": [
                            "technical",
                            "administrative"
                        ],
                        "events": [
                            {
                                "eventAction": "registration",
                                "eventDate": "2008-09-04T07:54:16Z"
                            },
                            {
                                "eventAction": "last changed",
                                "eventDate": "2015-08-10T11:30:02Z"
                            }
                        ],
                        "links": [
                            {
                                "value": "https://rdap.apnic.net/ip/166.100.0.0",
                                "rel": "self",
                                "href": "https://rdap.apnic.net/entity/AD103-AP",
                                "type": "application/rdap+json"
                            }
                        ],
                        "remarks": [
                            {
                                "description": [
                                    "Send spam or abuse report to abuse@att.net",
                                    "and please include detailed information and time.",
                                    "Send general query to IPAddadmin@jp.att.com."
                                ],
                                "title": "remarks"
                            }
                        ],
                        "handle": "AD103-AP",
                        "objectClassName": "entity",
                        "vcardArray": [
                            "vcard",
                            [
                                [
                                    "version",
                                    [],
                                    "text",
                                    "4.0"
                                ],
                                [
                                    "fn",
                                    [],
                                    "text",
                                    "AGNS DOMCUST"
                                ],
                                [
                                    "kind",
                                    [],
                                    "text",
                                    "group"
                                ],
                                [
                                    "adr",
                                    {
                                        "label": "Shinnikko-Building, 2-10-1,\nToranomon, Minato-ku,\nTOKYO, 105-0001, Japan"
                                    },
                                    "text",
                                    [
                                        "",
                                        "",
                                        "",
                                        "",
                                        "",
                                        "",
                                        ""
                                    ]
                                ],
                                [
                                    "tel",
                                    {
                                        "type": "voice"
                                    },
                                    "text",
                                    "+81-3-3584-4776"
                                ],
                                [
                                    "tel",
                                    {
                                        "type": "fax"
                                    },
                                    "text",
                                    "+81-3-3505-1771"
                                ],
                                [
                                    "email",
                                    [],
                                    "text",
                                    "IPAddadmin@jp.att.com"
                                ]
                            ]
                        ]
                    },
                    {
                        "roles": [
                            "abuse"
                        ],
                        "events": [
                            {
                                "eventAction": "registration",
                                "eventDate": "2010-11-15T10:22:50Z"
                            },
                            {
                                "eventAction": "last changed",
                                "eventDate": "2026-07-27T07:55:25Z"
                            }
                        ],
                        "links": [
                            {
                                "value": "https://rdap.apnic.net/ip/166.100.0.0",
                                "rel": "self",
                                "href": "https://rdap.apnic.net/entity/IRT-ATT-OPENNET-AP",
                                "type": "application/rdap+json"
                            }
                        ],
                        "remarks": [
                            {
                                "description": [
                                    "peering@intl.att.com was validated on 2026-07-03"
                                ],
                                "title": "remarks"
                            }
                        ],
                        "handle": "IRT-ATT-OPENNET-AP",
                        "objectClassName": "entity",
                        "vcardArray": [
                            "vcard",
                            [
                                [
                                    "version",
                                    [],
                                    "text",
                                    "4.0"
                                ],
                                [
                                    "fn",
                                    [],
                                    "text",
                                    "IRT-ATT-OPENNET-AP"
                                ],
                                [
                                    "kind",
                                    [],
                                    "text",
                                    "group"
                                ],
                                [
                                    "adr",
                                    {
                                        "label": "All of AP"
                                    },
                                    "text",
                                    [
                                        "",
                                        "",
                                        "",
                                        "",
                                        "",
                                        "",
                                        ""
                                    ]
                                ],
                                [
                                    "email",
                                    [],
                                    "text",
                                    "peering@intl.att.com"
                                ],
                                [
                                    "email",
                                    {
                                        "pref": "1"
                                    },
                                    "text",
                                    "peering@intl.att.com"
                                ]
                            ]
                        ]
                    }
                ],
                "handle": "166.100.0.0 - 166.100.255.255",
                "type": "ALLOCATED PORTABLE",
                "startAddress": "166.100.0.0",
                "endAddress": "166.100.255.255",
                "objectClassName": "ip network",
                "ipVersion": "v4",
                "cidr0_cidrs": [
                    {
                        "v4prefix": "166.100.0.0",
                        "length": 16
                    }
                ],
                "port43": "whois.apnic.net"
            },
            "cache_ttl": 0,
            "fetched_at": "2026-09-30T11:21:57+00:00",
            "fallback_allowed": false,
            "error": null,
            "tls_unverified": false,
            "transport_warnings": [],
            "retry_after": null,
            "provider_cooldown": false,
            "entity_sources": []
        }
    ],
    "warnings": [],
    "notes": [],
    "cached": false,
    "fetched_at": "2026-09-30T11:21:57+00:00",
    "partial": false,
    "registry_only": false,
    "route_records": {
        "status": "empty",
        "records": [],
        "warnings": [],
        "fetched_at": "2026-09-30T11:21:57+00:00",
        "registry": "APNIC",
        "endpoint": "whois.apnic.net:43",
        "protocol": "WHOIS",
        "scope": "Exact and covering route objects in the responsible RIR routing registry."
    },
    "display_status": {
        "key": "found",
        "label": "Record found"
    }
}