Whois & RDAP Lookup

AS37917

RDAP

HandleAS37917

NameUTINS

CountryJP

Updated2007-06-11 22:01 UTC

Admin ContactJapan Network Information Center

Email[email protected]

Phone+81-3-5297-2311

AddressUchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda, Chiyoda-ku, Tokyo 101-0047, Japan

Tech ContactJapan Network Information Center

Email[email protected]

Phone+81-3-5297-2311

AddressUchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda, Chiyoda-ku, Tokyo 101-0047, Japan

Statusactive

Registry RDAPhttps://rdap.apnic.net

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Raw WHOIS response

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

% Information related to 'AS37888 - AS37927'

as-block:       AS37888 - AS37927
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. 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:  2009-11-19T01:11:45Z
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 'AS37888 - AS38911'

as-block:       AS37888 - AS38911
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:  2009-09-29T06:04:16Z
source:         APNIC

role:           APNIC Hostmaster
address:        P.O. BOX 2131
address:        4101 QLD
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:  2026-08-14T00:28:10Z
source:         APNIC

% Information related to 'AS37917'

aut-num:        AS37917
as-name:        UTINS
descr:          University of Tsukuba
import:         from AS2907 100 accept ANY
import:         from AS18127 100 accept ANY
export:         to AS2907 announce AS37917
export:         to AS18127 announce AS37917
country:        JP
admin-c:        KI7984JP
tech-c:         AM1479JP
tech-c:         AS3586JP
tech-c:         KK6630JP
last-modified:  2007-06-11T22:01:44Z
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-SG1)

% Query time: 371 msec
% WHEN: Wed Aug 26 00:35:38 UTC 2026

% Additional information from whois.nic.ad.jp

Autonomous System Information:
a. [AS Number]                  37917
b. [AS Name]                    UTINS
g. [Organization]               University of Tsukuba
m. [Administrative Contact]     KI7984JP
n. [Technical Contact]          AM1479JP
n. [Technical Contact]          KK6630JP
n. [Technical Contact]          AS3586JP
q. [Abuse]                      
o. [IMPORT]                     from AS2907 100 accept ANY
o. [IMPORT]                     from AS18127 100 accept ANY
p. [EXPORT]                     to AS2907 announce AS37917
p. [EXPORT]                     to AS18127 announce AS37917
[Assigned Date]                 2007/06/08
[Last Update]                   2007/06/11 13:01:44(JST)

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

{
  "country": "JP",
  "endAutnum": 37917,
  "entities": [
    {
      "handle": "KI7984JP",
      "links": [
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=KI7984JP/e",
          "hreflang": "en",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        },
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=KI7984JP",
          "hreflang": "jp",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "administrative"
      ]
    },
    {
      "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/37917"
        }
      ],
      "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]"
          ]
        ]
      ]
    },
    {
      "handle": "KK6630JP",
      "links": [
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=KK6630JP/e",
          "hreflang": "en",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        },
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=KK6630JP",
          "hreflang": "jp",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "technical"
      ]
    },
    {
      "handle": "AM1479JP",
      "links": [
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=AM1479JP/e",
          "hreflang": "en",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        },
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=AM1479JP",
          "hreflang": "jp",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "technical"
      ]
    },
    {
      "handle": "AS3586JP",
      "links": [
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=AS3586JP/e",
          "hreflang": "en",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        },
        {
          "href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=AS3586JP",
          "hreflang": "jp",
          "rel": "related",
          "type": "text/html",
          "value": "https://jpnic.rdap.apnic.net/autnum/37917"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "technical"
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2007-06-11T22:01:44Z"
    }
  ],
  "handle": "AS37917",
  "links": [
    {
      "href": "https://jpnic.rdap.apnic.net/autnum/37917",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://jpnic.rdap.apnic.net/autnum/37917"
    }
  ],
  "name": "UTINS",
  "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/37917"
        }
      ],
      "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/37917"
        }
      ],
      "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": [
        "University of Tsukuba"
      ],
      "title": "description"
    }
  ],
  "startAutnum": 37917,
  "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.