Whois & RDAP Lookup

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS17653 - AS18431'

as-block:       AS17653 - AS18431
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2019-01-08T23:19:07Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         [email protected]
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         [email protected]
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC

% Information related to 'AS18067 - AS18083'

as-block:       AS18067 - AS18083
descr:          JPNIC-2Byte-ASBLOCK-AP
descr:          for assignment to JPNIC members
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Authoritative information regarding AS Number
remarks:        assignments made from within this block can be
remarks:        queried at whois.nic.ad.jp.
remarks:        To only display English output,
remarks:        add '/e' at the end of command,
remarks:        e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
last-modified:  2018-07-09T01:00:49Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         [email protected]
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

% Information related to 'AS18081'

% Abuse contact for 'AS18081' is '[email protected]'

aut-num:        AS18081
as-name:        KCN
descr:          Kintetsu Cable Network Co., Ltd.
descr:          1-70-1 Higashiikoma Ikoma Nara
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2024-10-03T08:15:15Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, japan
e-mail:         [email protected]
abuse-mailbox:  [email protected]
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2024-11-27
mnt-by:         MAINT-JPNIC
last-modified:  2025-09-04T01:00:00Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         [email protected]
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

% Information related to 'AS18081'

aut-num:        AS18081
as-name:        KCN
descr:          Kintetsu Cable Network Co., Ltd.
import:         from AS4713 100 accept ANY
import:         from AS2497 100 accept ANY
import:         from AS703 100 accept ANY
export:         to AS4713 announce AS18081
export:         to AS2497 announce AS18081
export:         to AS703 announce AS18081
country:        JP
admin-c:        FK396JP
tech-c:         FK396JP
last-modified:  2021-02-24T19:56:02Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1)

% Query time: 354 msec
% WHEN: Fri Sep 18 20:47:43 UTC 2026

% Additional information from whois.nic.ad.jp

Autonomous System Information:
a. [AS Number]                  18081
b. [AS Name]                    KCN
g. [Organization]               Kintetsu Cable Network Co., Ltd.
m. [Administrative Contact]     FK396JP
n. [Technical Contact]          FK396JP
q. [Abuse]                      
o. [IMPORT]                     from AS4713 100 accept ANY
o. [IMPORT]                     from AS2497 100 accept ANY
o. [IMPORT]                     from AS703 100 accept ANY
p. [EXPORT]                     to AS4713 announce AS18081
p. [EXPORT]                     to AS2497 announce AS18081
p. [EXPORT]                     to AS703 announce AS18081
[Assigned Date]                 2002/02/08
[Last Update]                   2021/02/24 10:56:02(JST)

Raw RDAP JSON (registry) https://rdap.apnic.net

{
  "country": "JP",
  "endAutnum": 18081,
  "entities": [
    {
      "handle": "FK396JP",
      "links": [
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=FK396JP/e",
          "hreflang": "en",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/18081"
        },
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=FK396JP",
          "hreflang": "jp",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/18081"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "administrative",
        "technical"
      ]
    },
    {
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2022-01-05T03:04:02Z"
        }
      ],
      "handle": "JNIC1-AP",
      "links": [
        {
          "href": "https://jpnic.rdap.apnic.net/entity/JNIC1-AP",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://jpnic.rdap.apnic.net/autnum/18081"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "administrative",
        "technical"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Japan Network Information Center"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda\nChiyoda-ku, Tokyo 101-0047, Japan"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+81-3-5297-2311"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+81-3-5297-2312"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2025-09-04T01:00:00Z"
        }
      ],
      "handle": "IRT-JPNIC-JP",
      "links": [
        {
          "href": "https://jpnic.rdap.apnic.net/entity/IRT-JPNIC-JP",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://jpnic.rdap.apnic.net/autnum/18081"
        }
      ],
      "objectClassName": "entity",
      "remarks": [
        {
          "description": [
            "[email protected] was validated on 2024-11-27"
          ],
          "title": "remarks"
        }
      ],
      "roles": [
        "abuse"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-JPNIC-JP"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda\nChiyoda-ku, Tokyo 101-0047, japan"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+81-3-5297-2311"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+81-3-5297-2312"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2021-02-24T19:56:02Z"
    }
  ],
  "handle": "AS18081",
  "links": [
    {
      "href": "https://jpnic.rdap.apnic.net/autnum/18081",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://jpnic.rdap.apnic.net/autnum/18081"
    }
  ],
  "name": "KCN",
  "notices": [
    {
      "description": [
        "Objects returned came from source",
        "JPNIC"
      ],
      "title": "Source"
    },
    {
      "description": [
        "This is the APNIC WHOIS Database query service. The objects are in RDAP format.",
        "This information has been partially mirrored by APNIC from JPNIC. To obtain more specific information, please use the JPNIC WHOIS Gateway at http://www.nic.ad.jp/en/db/whois/en-gateway.html or whois.nic.ad.jp for WHOIS client. (The WHOIS client defaults to Japanese output, use the /e switch for English output)"
      ],
      "links": [
        {
          "href": "http://www.apnic.net/db/dbcopyright.html",
          "rel": "terms-of-service",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/18081"
        }
      ],
      "title": "Terms and Conditions"
    },
    {
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
          "rel": "inaccuracy-report",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/18081"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    }
  ],
  "objectClassName": "autnum",
  "port43": "whois.apnic.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "nro_rdap_profile_asn_hierarchical_0",
    "cidr0",
    "rdap_level_0"
  ],
  "remarks": [
    {
      "description": [
        "Kintetsu Cable Network Co., Ltd."
      ],
      "title": "description"
    }
  ],
  "startAutnum": 18081,
  "status": [
    "active"
  ]
}

Frequently asked questions

What is WHOIS?

WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.

What is RDAP, and how does it differ?

RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.

What is the difference between a registrar and a registrant?

The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.

What are nameservers?

Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.

What is DNSSEC?

DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.

Why is the contact information redacted?

Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.