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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

AS5603

SIOL-NET Telekom Slovenije, d.d. Announcing routes
AS nameSIOL-NET
OrganisationAS5603-MNT
Registry (RIR)RIPE NCC
HandleAS5603
RangeAS5603
Registered19 Sep 2002
Last changed21 Sep 2026
Abuse contact[email protected]
83IPv4 prefixes
12IPv6 prefixes
24Upstreams
128Downstreams

Upstreams

ASNetwork nameVisibility
AS5405INTERDOTLINK Inter.link GmbH7769
AS3356LEVEL3 - Level 3 Parent, LLC3590
AS9002RETN-AS RETN Limited2102
AS3320DTAG Deutsche Telekom AG902
AS6939HURRICANE - Hurricane Electric LLC870
AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.229
AS48362TKSWF-AS Stadtwerke Feldkirch175
AS13030INIT7 Init7 (Switzerland) Ltd.167
AS8218NEO-ASN Zayo Infrastructure France SA159
AS47147AS-ANX Anexia Cloud Solutions GmbH140
AS14840AS14840 - BR.Digital Telecom117
AS3303SWISSCOM Swisscom (Schweiz) AG104
AS6204ZET-NET INTERKVM HOST SRL96
AS8220COLT COLT Technology Services Group Limited94
AS25467AKTON-AS Akton d.o.o.67

Downstreams

ASNetwork nameVisibility
AS21246IPKO-AS IPKO Telecommunications LLC1190
AS34772NEOTEL-AS-MK NEOTEL AD Skopje974
AS198279ATU-AL-AS Albanian Telecommunications Union SH. P.K.861
AS34547Telesmart-AS TELESMART TELEKOM DOO782
AS200899INTERSPACE-EUROPE INTERSPACE DOOEL Skopje434
AS21107BLICNET-AS Blicnet d.o.o. Banja Luka304
AS205923OPTIXCOM-AS Optixcom sh.p.k.281
AS41104PODRAVKA-AS PODRAVKA trgovsko podjetje, d.o.o. Ljubljana206
AS28933LTFE-AS University of Ljubljana, Faculty of Electrical Engineering203
AS57532KTVRavne Kabelska televizija Ravne d.o.o.201
AS207746A1SI-AS A1 Slovenija telekomunikacijske storitve,d.d.195
AS197663POLANS POLANS, telekomunikacijske storitve d.o.o.186
AS6764PERFTECH-SLOVENIA-AS PERFTECH, podjetje za proizvodnjo in uvajanje novih tehnologij, d.o.o.186
AS44632AS-KONTRON-1 KRONTRON d.o.o.174
AS43351GORENJE-SI-AS Gorenje, d.o.o.172
IPv4 prefixes (83)
IPv6 prefixes (12)

RPKI-validate all prefixes of AS5603

Contacts

RoleNameHandleEmail / phoneAddress
registrantAS5603-MNTAS5603-MNT
registrantTelekom Slovenije, d.d.ORG-SId2-RIPE+386 1 234 1377, +386 1 434 45 15Cigaletova 15, 1000, LJUBLJANA, SLOVENIA
registrantRIPE-NCC-END-MNTRIPE-NCC-END-MNT
administrative, technicalTelekom Slovenije Internet Team - RipeSIT111-RIPE[email protected], +386-1 234 1377, +386-1 434 4515Telekom Slovenije d.d., Cigaletova 15, 1000 Ljubljana, Slovenia
abuseTelekom Slovenije Internet Team - RipeSIT111-RIPE[email protected], +386-1 234 1377, +386-1 434 4515Telekom Slovenije d.d., Cigaletova 15, 1000 Ljubljana, Slovenia
registrantAS5603-MNTAS5603-MNT
technicalAljaz VajdaAV12064-RIPE+386 1 234 1367Telekom Slovenije d.d.
technicalBostjan JakiBJ1176-RIPE+ 386-1-2341770Telekom Slovenije d.d., Cigaletova 15, 1000 Ljubljana, Slovenija
technicalMatjaz PuckoMP34728-RIPE+386 1 234 1117Telekom Slovenije d.d.
administrativeSebastijan MucMUC11-RIPE+386 1 234 1377Telekom Slovenije d.d., Cigaletova 15, 1000 LJUBLJANA, Slovenia, SI
Raw registry response
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    "startAutnum": 5603,
    "endAutnum": 5603,
    "name": "SIOL-NET",
    "status": [
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                                "Aljaz Vajda"
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                    "handle": "BJ1176-RIPE",
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                            ],
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                                "kind",
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                            ],
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                                "adr",
                                {
                                    "label": "Telekom Slovenije d.d.\nCigaletova 15\n1000 Ljubljana\nSlovenija"
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                    "links": [
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                            "href": "https://rdap.db.ripe.net/entity/BJ1176-RIPE"
                        },
                        {
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                            "rel": "copyright",
                            "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                        }
                    ],
                    "objectClassName": "entity"
                },
                {
                    "handle": "MP34728-RIPE",
                    "vcardArray": [
                        "vcard",
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                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Matjaz Pucko"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Telekom Slovenije d.d."
                                },
                                "text",
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                                    ""
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                    "roles": [
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                    "links": [
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                            "value": "https://rdap.db.ripe.net/autnum/5603",
                            "rel": "self",
                            "href": "https://rdap.db.ripe.net/entity/MP34728-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": "MUC11-RIPE",
                    "vcardArray": [
                        "vcard",
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                            [
                                "version",
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                                "text",
                                "4.0"
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Sebastijan Muc"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Telekom Slovenije d.d.\nCigaletova 15\n1000 LJUBLJANA\nSlovenia\nSI"
                                },
                                "text",
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                                    "",
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                                    ""
                                ]
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                        ]
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                    "roles": [
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                    "links": [
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                            "value": "https://rdap.db.ripe.net/autnum/5603",
                            "rel": "self",
                            "href": "https://rdap.db.ripe.net/entity/MUC11-RIPE"
                        },
                        {
                            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                            "rel": "copyright",
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                        }
                    ],
                    "objectClassName": "entity"
                }
            ],
            "objectClassName": "entity"
        }
    ],
    "remarks": [
        {
            "description": [
                "Telekom Slovenije d.d.",
                "Internet Service Provider in Slovenia",
                "http://www.telekom.si",
                "",
                "-----------------------------------------------------------",
                "UPSTREAMS IPv4",
                "UPSTREAMS IPv6",
                "DE-CIX Direct Peering IPv4",
                "DE-CIX Direct Peering IPv6",
                "NL-IX Direct Peering IPv4",
                "NL-IX Direct Peering IPv6",
                "NL-IX Open Peering IPv4/IPv6",
                "SIX Open Peering IPv4/IPv6",
                "Direct Peering IPv4",
                "Direct Peering IPv6",
                "Tranzit Customer IPv4",
                "Tranzit Customer IPv6",
                "Customer IPv4",
                "Customer IPv6",
                "-------------------------------------------------------",
                "Public peering details:",
                "http://www.peeringdb.com/view.php?asn=5603",
                "whois -h whois.peeringdb.com AS5603",
                "AS-SET for IPv4: AS-SIOL",
                "AS-SET for IPv6: AS-SIOL6",
                "-----------------------------------------------------",
                "Please send abuse reports to: [email protected]",
                "Please send network issues to: [email protected]",
                "------------------------------------------------------"
            ]
        }
    ],
    "links": [
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            "value": "https://rdap.db.ripe.net/autnum/5603",
            "rel": "rdap-up",
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            "type": "application/rdap+json"
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        {
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            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/5603",
            "rel": "rdap-down",
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            "type": "application/rdap+json"
        },
        {
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        {
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        },
        {
            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
            "rel": "copyright",
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        }
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2002-09-19T16:59:20Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2026-09-21T09:51:04Z"
        }
    ],
    "rdapConformance": [
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        "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/5603",
                    "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": [
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                    "rel": "terms-of-service",
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                    "type": "application/pdf"
                }
            ]
        }
    ],
    "port43": "whois.ripe.net",
    "objectClassName": "autnum",
    "redacted": [
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='ORG-SId2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
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        },
        {
            "name": {
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            "reason": {
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        },
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            "prePath": "$.entities[?(@.handle=='SIT111-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        }
    ]
}

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