Telecom Tower & Network Infrastructure Offerings Across India [email protected]
Home About
Services
Blog
Network tools
Contact Get a Quote
Free network tools

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

AS19197

STEFANINI-INC - Stefanini, Inc. Announcing routes
AS nameSTEFANINI-INC
OrganisationStefanini, Inc.
Registry (RIR)ARIN
HandleAS19197
RangeAS19197
Registered04 Dec 2000
Last changed26 Jul 2018
17IPv4 prefixes
0IPv6 prefixes
14Upstreams
0Downstreams

Upstreams

ASNetwork nameVisibility
AS5606GTS-BACKBONE GTS Telecom SRL558
AS2687ATGS-MMD-AS - AT&T Enterprises, LLC494
AS3356LEVEL3 - Level 3 Parent, LLC342
AS13335CLOUDFLARENET - Cloudflare, Inc.269
AS31252STARNET-AS StarNet Solutii SRL269
AS4230AS4230 - CLARO S.A.263
AS31242TKPSA-AS P4 Sp. z o.o.168
AS5483MAGYAR-TELEKOM-MAIN-AS Magyar Telekom Plc.134
AS19224QSGIT - Quantum Services Group, LLC.120
AS12912TMPL T-Mobile Polska S.A.98
AS30600AS-CMN - Metronet42
AS10429AS10429 - TELEFONICA BRASIL S.A12
AS50084RAPID-LINK-AS S.A."Rapid Link" S.R.L.5
AS3549LVLT-3549 - Level 3 Parent, LLC2

Downstreams

None seen.

IPv4 prefixes (17)

RPKI-validate all prefixes of AS19197

Contacts

RoleNameHandleEmail / phoneAddress
registrantStefanini, Inc.STEFA-827100 W. 11 Mile Road, Southfield, MI, 48034, United States
technical, routing, noc, abuseBruno Alves MonteiroBAM47-ARIN[email protected], +1-248-302-247427100 W Eleven Mile Rd,, Southfield, MI, 48034, United States
routing, noc, technical, abuseFRANK BEANBEANF2-ARIN[email protected], +1-248-213-367427335 W 11 MILE RD , BLDG MAIN FLR 1 RM PHONE, SOUTHFIELD, MI, 48033, United States
administrativeCristiano MoraesMORAE7-ARIN[email protected], +1-248-263-564927100 West 11 Mile Rd, Southfield, MI, 48034, United States
Raw registry response
{
    "endAutnum": 19197,
    "entities": [
        {
            "entities": [
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-02-03T14:48:35-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2022-05-23T09:45:16-04:00"
                        }
                    ],
                    "handle": "BAM47-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/BAM47-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/autnum/19197"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/BAM47-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/autnum/19197"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "technical",
                        "routing",
                        "noc",
                        "abuse"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "27100 W Eleven Mile Rd,\nSouthfield\nMI\n48034\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Bruno Alves Monteiro"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Monteiro",
                                    "Bruno",
                                    "Alves",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "[email protected]"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-248-302-2474"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2024-05-18T09:30:58-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2011-07-19T15:26:02-04:00"
                        }
                    ],
                    "handle": "BEANF2-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/BEANF2-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/autnum/19197"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/BEANF2-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/autnum/19197"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-05-18"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "routing",
                        "noc",
                        "technical",
                        "abuse"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "27335 W 11 MILE RD\r\nBLDG MAIN FLR 1 RM PHONE\nSOUTHFIELD\nMI\n48033\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "FRANK BEAN"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "BEAN",
                                    "FRANK",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "[email protected]"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-248-213-3674"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-02-03T16:15:59-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2024-02-01T15:08:08-05:00"
                        }
                    ],
                    "handle": "MORAE7-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/MORAE7-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/autnum/19197"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/MORAE7-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/autnum/19197"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "administrative"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "27100 West 11 Mile Rd\nSouthfield\nMI\n48034\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Cristiano Moraes"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Moraes",
                                    "Cristiano",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "[email protected]"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-248-263-5649"
                            ]
                        ]
                    ]
                }
            ],
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2024-02-01T15:12:58-05:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2018-02-23T11:16:32-05:00"
                }
            ],
            "handle": "STEFA-8",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/STEFA-8",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/autnum/19197"
                },
                {
                    "href": "https://whois.arin.net/rest/org/STEFA-8",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/autnum/19197"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "https://www.stefanini.com"
                    ],
                    "title": "Registration Comments"
                }
            ],
            "roles": [
                "registrant"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Stefanini, Inc."
                    ],
                    [
                        "adr",
                        {
                            "label": "27100 W. 11 Mile Road\nSouthfield\nMI\n48034\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ]
                ]
            ]
        }
    ],
    "events": [
        {
            "eventAction": "last changed",
            "eventDate": "2018-07-25T17:23:59-04:00"
        },
        {
            "eventAction": "registration",
            "eventDate": "2000-12-04T00:00:00-05:00"
        }
    ],
    "handle": "AS19197",
    "links": [
        {
            "href": "https://rdap.arin.net/registry/autnum/19197",
            "rel": "self",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/autnum/19197"
        },
        {
            "href": "https://whois.arin.net/rest/asn/AS19197",
            "rel": "alternate",
            "type": "application/xml",
            "value": "https://rdap.arin.net/registry/autnum/19197"
        }
    ],
    "name": "STEFANINI-INC",
    "notices": [
        {
            "description": [
                "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
            ],
            "links": [
                {
                    "href": "https://www.arin.net/resources/registry/whois/tou/",
                    "rel": "terms-of-service",
                    "type": "text/html",
                    "value": "https://rdap.arin.net/registry/autnum/19197"
                }
            ],
            "title": "Terms of Service"
        },
        {
            "description": [
                "If you see inaccuracies in the results, please visit: "
            ],
            "links": [
                {
                    "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
                    "rel": "inaccuracy-report",
                    "type": "text/html",
                    "value": "https://rdap.arin.net/registry/autnum/19197"
                }
            ],
            "title": "Whois Inaccuracy Reporting"
        },
        {
            "description": [
                "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
            ],
            "title": "Copyright Notice"
        }
    ],
    "objectClassName": "autnum",
    "port43": "whois.arin.net",
    "rdapConformance": [
        "nro_rdap_profile_0",
        "rdap_level_0",
        "nro_rdap_profile_asn_flat_0"
    ],
    "startAutnum": 19197,
    "status": [
        "active"
    ]
}

Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.

Need help with RPKI, routing security or IP management?