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AS WHOIS

Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.

Your public IP address216.73.216.19 IPv4

AS204028

DolphinIT Dolphin IT-Systeme e.K. Announcing routes
AS nameDolphinIT
OrganisationDOLPHINIT-MNT
Registry (RIR)RIPE NCC
HandleAS204028
RangeAS204028
Registered10 Sep 2015
Last changed13 Feb 2026
Abuse contact[email protected]
6IPv4 prefixes
7IPv6 prefixes
2Upstreams
7Downstreams

Upstreams

ASNetwork nameVisibility
AS3209VODANET Vodafone GmbH2042
AS3320DTAG Deutsche Telekom AG234

Downstreams

ASNetwork nameVisibility
AS202731FAUSERAG-NET FAUSER AG242
AS202878KEVNET Kevin Olbrich242
AS203045KETTLER-NET Kettler Textil-Konfektion GmbH242
AS203692PPDIGITAL-AS ppdigital GmbH & Co. KG242
AS203696EAG-FPI-NET Europaeische Akademie fuer biopsychosoziale Gesundheit, Naturtherapien und Kreativitaetsfoerderung (EAG)242
AS203838WPK-NET WPK Kunststofftechnik GmbH & Co. KG242
AS203881GFANET GFA Steriltechnik GmbH & Co. KG242
IPv4 prefixes (6)
IPv6 prefixes (7)

RPKI-validate all prefixes of AS204028

Contacts

RoleNameHandleEmail / phoneAddress
registrantDOLPHINIT-MNTDOLPHINIT-MNT
technicalKevin OlbrichKO1457-RIPE+49219285490Clausewitzstraße 47A, 42389, Wuppertal, GERMANY
administrativeOlaf FamersOF1364-RIPE+49219285490Clausewitzstraße 47A, 42389, Wuppertal, GERMANY
registrantDolphin IT-Systeme e.K.ORG-DIE3-RIPE+49219285490, +492192854929Clausewitzstraße 47A, 42389, Wuppertal, GERMANY
registrantRIPE-NCC-END-MNTRIPE-NCC-END-MNT
abuseAbuse-C RoleAR33593-RIPE[email protected]Clausewitzstr. 47A, 42389, Wuppertal, GERMANY
registrantDOLPHINIT-MNTDOLPHINIT-MNT
Raw registry response
{
    "handle": "AS204028",
    "startAutnum": 204028,
    "endAutnum": 204028,
    "name": "DolphinIT",
    "status": [
        "active"
    ],
    "entities": [
        {
            "handle": "DOLPHINIT-MNT",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "DOLPHINIT-MNT"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/DOLPHINIT-MNT"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "KO1457-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Kevin Olbrich"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "adr",
                        {
                            "label": "Clausewitzstraße 47A\n42389\nWuppertal\nGERMANY"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+49219285490"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "ORG-DIE3-RIPE"
                    ]
                ]
            ],
            "roles": [
                "technical"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/KO1457-RIPE"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "OF1364-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Olaf Famers"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "adr",
                        {
                            "label": "Clausewitzstraße 47A\n42389\nWuppertal\nGERMANY"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+49219285490"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "ORG-DIE3-RIPE"
                    ]
                ]
            ],
            "roles": [
                "administrative"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/OF1364-RIPE"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "ORG-DIE3-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Dolphin IT-Systeme e.K."
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ],
                    [
                        "adr",
                        {
                            "label": "Clausewitzstraße 47A\n42389\nWuppertal\nGERMANY"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+49219285490"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+492192854929"
                    ],
                    [
                        "geo",
                        [],
                        "uri",
                        "51.279132 7.255566"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/ORG-DIE3-RIPE"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "RIPE-NCC-END-MNT",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "RIPE-NCC-END-MNT"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "ORG-NCC1-RIPE"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "AR33593-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Abuse-C Role"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "Clausewitzstr. 47A\n42389\nWuppertal\nGERMANY"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "email",
                        {
                            "type": "abuse"
                        },
                        "text",
                        "[email protected]"
                    ]
                ]
            ],
            "roles": [
                "abuse"
            ],
            "entities": [
                {
                    "handle": "DOLPHINIT-MNT",
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "DOLPHINIT-MNT"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ]
                        ]
                    ],
                    "roles": [
                        "registrant"
                    ],
                    "links": [
                        {
                            "value": "https://rdap.db.ripe.net/autnum/204028",
                            "rel": "self",
                            "href": "https://rdap.db.ripe.net/entity/DOLPHINIT-MNT"
                        },
                        {
                            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                            "rel": "copyright",
                            "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                        }
                    ],
                    "objectClassName": "entity"
                }
            ],
            "objectClassName": "entity"
        }
    ],
    "remarks": [
        {
            "description": [
                "https://dolphin-it.de/",
                "***********************************************************",
                "Commercial Uplink and Transit Partners",
                "United-Peering.net",
                "Hurricane Electric",
                "Liberty Global Operations B.V.",
                "Vodafone GmbH",
                "Deutsche Telekom AG",
                "Voxility LLP",
                "Direct- und Private-Peering Partners",
                "WOODYNET",
                "PCH",
                "Contacts",
                "For spam/abuse, please contact [email protected]",
                "E-mails to the persons above will be IGNORED!"
            ]
        }
    ],
    "links": [
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "rdap-up",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS204028",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "rdap-up rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS204028?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "rdap-down",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS204028",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "rdap-top",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS204028",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "rdap-top rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS204028?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "rdap-bottom",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS204028",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/204028",
            "rel": "self",
            "href": "https://rdap.db.ripe.net/autnum/204028",
            "type": "application/rdap+json"
        },
        {
            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
            "rel": "copyright",
            "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2015-09-10T11:56:44Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2026-02-12T23:03:45Z"
        }
    ],
    "rdapConformance": [
        "nro_rdap_profile_asn_flat_0",
        "rirSearch1",
        "autnums",
        "cidr0",
        "rdap_level_0",
        "nro_rdap_profile_0",
        "redacted"
    ],
    "notices": [
        {
            "title": "Filtered",
            "description": [
                "This output has been filtered."
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit:"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "inaccuracy-report",
                    "href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
                    "type": "text/html"
                }
            ]
        },
        {
            "title": "Source",
            "description": [
                "Objects returned came from source",
                "RIPE"
            ]
        },
        {
            "title": "Terms and Conditions",
            "description": [
                "This is the RIPE Database query service. The objects are in RDAP format."
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/204028",
                    "rel": "terms-of-service",
                    "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
                    "type": "application/pdf"
                }
            ]
        }
    ],
    "port43": "whois.ripe.net",
    "objectClassName": "autnum",
    "redacted": [
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='KO1457-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='OF1364-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='ORG-DIE3-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='AR33593-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        }
    ]
}

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