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AS WHOIS

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

Your public IP address216.73.217.120 IPv4

AS44143

A1SERBIA-AS A1 Srbija d.o.o. Beograd Announcing routes
AS nameA1SERBIA-AS
OrganisationA1 Srbija d.o.o. Beograd
Registry (RIR)RIPE NCC
HandleAS44143
RangeAS44143
Registered23 Nov 2007
Last changed14 May 2026
Abuse contact[email protected]
15IPv4 prefixes
3IPv6 prefixes
4Upstreams
5Downstreams

Upstreams

ASNetwork nameVisibility
AS8447A1TELEKOM-AT A1 Telekom Austria AG528
AS1299TWELVE99 Arelion Sweden AB125
AS13004SOX Serbian Open Exchange DOO11
AS6204ZET-NET INTERKVM HOST SRL3

Downstreams

ASNetwork nameVisibility
AS62012GeneraliSrbija Generali Osiguranje Srbija158
AS394977T2EE-AS1 - TAKE-TWO INTERACTIVE SOFTWARE, INC.117
AS31042YETTEL-AS Yettel d.o.o.7
AS205201rts-as Public Service Media Radio Television of Serbia5
AS213008LILLY-RS APOTEKARSKA USTANOVA LILLY DROGERIE BEOGRAD5
IPv4 prefixes (15)
IPv6 prefixes (3)

RPKI-validate all prefixes of AS44143

Contacts

RoleNameHandleEmail / phoneAddress
administrative, technicalA1 Serbia IP AdminsIP4668-RIPE+381602254141A1 Serbia doo, Milutina Milankovica 1z, 11070 Beograd
administrativeNovak JosicNJ1795-RIPE+381600004437A1 Serbia doo, Milutina Milankovica 1z, 11070 Beograd
registrantA1 Srbija d.o.o. BeogradORG-Td12-RIPE+381601234, +381602254141MILUTINA MILANKOVICA 1z Navigator, 11070, BEOGRAD, SERBIA
registrantRIPE-NCC-END-MNTRIPE-NCC-END-MNT
registrantROUTE-SRBROUTE-SRB
abuseA1 SERBIA ABUSE-CVMA21-RIPE[email protected]MILUTINA MILANKOVICA 1z, BELGRADE, SERBIA
registrantROUTE-SRBROUTE-SRB
Raw registry response
{
    "handle": "AS44143",
    "startAutnum": 44143,
    "endAutnum": 44143,
    "name": "A1SERBIA-AS",
    "status": [
        "active"
    ],
    "entities": [
        {
            "handle": "IP4668-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "A1 Serbia IP Admins"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "A1 Serbia doo\nMilutina Milankovica 1z\n11070 Beograd"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+381602254141"
                    ]
                ]
            ],
            "roles": [
                "administrative",
                "technical"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/44143",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/IP4668-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": "NJ1795-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Novak Josic"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "adr",
                        {
                            "label": "A1 Serbia doo\nMilutina Milankovica 1z\n11070 Beograd"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+381600004437"
                    ]
                ]
            ],
            "roles": [
                "administrative"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/44143",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/NJ1795-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-Td12-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "A1 Srbija d.o.o. Beograd"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ],
                    [
                        "adr",
                        {
                            "label": "MILUTINA MILANKOVICA 1z Navigator\n11070\nBEOGRAD\nSERBIA"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+381601234"
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+381602254141"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/44143",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/ORG-Td12-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/44143",
                    "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": "ROUTE-SRB",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "ROUTE-SRB"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/44143",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/ROUTE-SRB"
                },
                {
                    "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": "VMA21-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "A1 SERBIA ABUSE-C"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "MILUTINA MILANKOVICA 1z, BELGRADE, SERBIA"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "email",
                        {
                            "type": "abuse"
                        },
                        "text",
                        "[email protected]"
                    ]
                ]
            ],
            "roles": [
                "abuse"
            ],
            "entities": [
                {
                    "handle": "ROUTE-SRB",
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "ROUTE-SRB"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ]
                        ]
                    ],
                    "roles": [
                        "registrant"
                    ],
                    "links": [
                        {
                            "value": "https://rdap.db.ripe.net/autnum/44143",
                            "rel": "self",
                            "href": "https://rdap.db.ripe.net/entity/ROUTE-SRB"
                        },
                        {
                            "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": [
                "==================",
                "UPSTREAM IPv4",
                "UPSTREAM IPv6",
                "=====================",
                "DOWNSTREAM IPv4",
                "===============================",
                "PRIVATE PEERINGS & IXPs IPv4",
                "PRIVATE PEERINGS & IXPs IPv6"
            ]
        }
    ],
    "links": [
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "rdap-up",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS44143",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "rdap-up rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS44143?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "rdap-down",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS44143",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "rdap-top",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS44143",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "rdap-top rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS44143?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "rdap-bottom",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS44143",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/44143",
            "rel": "self",
            "href": "https://rdap.db.ripe.net/autnum/44143",
            "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": "2007-11-23T08:24:49Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2026-05-14T08:29:28Z"
        }
    ],
    "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/44143",
                    "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/44143",
                    "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": "$.entities[?(@.handle=='IP4668-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='NJ1795-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='ORG-Td12-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='VMA21-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        }
    ]
}

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