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AS WHOIS

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

Your public IP address216.73.216.24 IPv4

AS20203

FIRST-FINANCIAL-BANK-NA - First Financial Bank NA Announcing routes
AS nameFIRST-FINANCIAL-BANK-NA
OrganisationFirst Financial Bank NA
Registry (RIR)ARIN
HandleAS20203
RangeAS20203
Registered18 Sep 2017
Last changed18 Sep 2017
Abuse contact[email protected]
2IPv4 prefixes
0IPv6 prefixes
6Upstreams
0Downstreams

Upstreams

ASNetwork nameVisibility
AS6461ZAYO-6461 - Zayo Bandwidth203
AS5742CCINET - Fidium139
AS13807GREAT-PLAINS-COMMUNICATIONS - Great Plains Communications LLC137
AS13649ASN-FLEXENTIAL - Flexential Colorado Corp.40
AS7018ATT-INTERNET4 - AT&T Enterprises, LLC19
AS327091-JOINK - Joink, LLC4

Downstreams

None seen.

IPv4 prefixes (2)

RPKI-validate all prefixes of AS20203

Contacts

RoleNameHandleEmail / phoneAddress
registrantFirst Financial Bank NAFFBN-6PO Box 2122, Terre Haute, IN, 47802, United States
abuseAbuseABUSE6388-ARIN[email protected], +1-812-238-6000Po Box 2122, Terre Haute, IN, 47802, United States
administrative, noc, technicalFirst Financial Bank NAFFBN1-ARIN[email protected], +1-812-238-6000Po Box 2122, Terre Haute, IN, 47802, United States
Raw registry response
{
    "endAutnum": 20203,
    "entities": [
        {
            "entities": [
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2025-12-09T07:51:40-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2017-09-12T10:53:19-04:00"
                        }
                    ],
                    "handle": "ABUSE6388-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/ABUSE6388-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/autnum/20203"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/ABUSE6388-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/autnum/20203"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "abuse"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Po Box 2122\nTerre Haute\nIN\n47802\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Abuse"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "First Financial Bank NA"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "[email protected]"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-812-238-6000"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-09-04T07:54:34-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2017-09-14T10:52:14-04:00"
                        }
                    ],
                    "handle": "FFBN1-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/FFBN1-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/autnum/20203"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/FFBN1-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/autnum/20203"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "administrative",
                        "noc",
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Po Box 2122\nTerre Haute\nIN\n47802\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "First Financial Bank NA"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "First Financial Bank NA"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "[email protected]"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-812-238-6000"
                            ]
                        ]
                    ]
                }
            ],
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2020-06-03T11:31:19-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2017-09-13T15:17:21-04:00"
                }
            ],
            "handle": "FFBN-6",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/FFBN-6",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/autnum/20203"
                },
                {
                    "href": "https://whois.arin.net/rest/org/FFBN-6",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/autnum/20203"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "registrant"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "First Financial Bank NA"
                    ],
                    [
                        "adr",
                        {
                            "label": "PO Box 2122\nTerre Haute\nIN\n47802\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ]
                ]
            ]
        }
    ],
    "events": [
        {
            "eventAction": "last changed",
            "eventDate": "2017-09-18T13:00:37-04:00"
        },
        {
            "eventAction": "registration",
            "eventDate": "2017-09-18T13:00:37-04:00"
        }
    ],
    "handle": "AS20203",
    "links": [
        {
            "href": "https://rdap.arin.net/registry/autnum/20203",
            "rel": "self",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/autnum/20203"
        },
        {
            "href": "https://whois.arin.net/rest/asn/AS20203",
            "rel": "alternate",
            "type": "application/xml",
            "value": "https://rdap.arin.net/registry/autnum/20203"
        }
    ],
    "name": "FIRST-FINANCIAL-BANK-NA",
    "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/20203"
                }
            ],
            "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/20203"
                }
            ],
            "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": 20203,
    "status": [
        "active"
    ]
}

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