Whois & RDAP Lookup

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

% Information related to 'AS131072 - AS132095'

as-block:       AS131072 - AS132095
descr:          APNIC 32-bit 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:  2009-09-29T05:34:08Z
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 'AS131142 - AS131151'

as-block:       AS131142 - AS131151
descr:          TWNIC-TW-4-byte-AS-BLOCK1
descr:          These AS numbers are further assigned by TWNIC
descr:          to TWNIC members
country:        TW
admin-c:        TWA2-AP
tech-c:         TWA2-AP
mnt-by:         MAINT-TW-TWNIC
mnt-lower:      MAINT-TW-TWNIC
last-modified:  2009-08-07T04:27:50Z
source:         APNIC

role:           TWNIC Whois Administrator
address:        Taiwan Network Information Center
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.,
address:        Taipei, Taiwan, 105
country:        TW
phone:          +886-2-25289696
fax-no:         +886-2-25287756
e-mail:         [email protected]
admin-c:        ck373-AP
tech-c:         TW922-AP
tech-c:         NS10-AP
nic-hdl:        TWA2-AP
notify:         [email protected]
mnt-by:         MAINT-TW-TWNIC
last-modified:  2020-01-02T03:54:20Z
source:         APNIC

% Information related to 'AS131149'

% Abuse contact for 'AS131149' is '[email protected]'

aut-num:        AS131149
as-name:        YUANJHEN-AS-TW
descr:          Yuan-Jhen Info., Co., Ltd
descr:          12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,
descr:          New Taipei City Taiwan 235
country:        TW
import:         from AS4780 action pref=200; accept ANY
import:         from AS9919 action pref=100; accept ANY
export:         to AS4780 announce AS131149
export:         to AS9919 announce AS131149
default:        to AS9919 action pref=100; networks ANY
admin-c:        YN371-AP
tech-c:         YN371-AP
abuse-c:        AT939-AP
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-YUANJHEN-TW
last-modified:  2025-11-06T09:29:49Z
source:         APNIC

irt:            IRT-YUANJHEN-TW
address:        Yuan-Jhen Info., Co., Ltd
address:        12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,
address:        New Taipei City, 235
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        YC2393-AP
tech-c:         YC2393-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2026-07-16T02:54:46Z
source:         APNIC

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         [email protected]
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        [email protected] was validated on 2025-05-23
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         YUANJHEN NOC
address:        12F., No.866-11, Zhongzheng Rd., Zhonghe Dist., New Taipei City, 235, R.O.C
country:        TW
phone:          +886-2-7753-7313
e-mail:         [email protected]
nic-hdl:        YN371-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2023-02-10T08:13:55Z
source:         APNIC

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

% Query time: 230 msec
% WHEN: Fri Aug 14 10:51:07 UTC 2026

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

{
  "country": "TW",
  "endAutnum": 131149,
  "entities": [
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2023-11-30T04:18:52Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-07-16T02:54:46Z"
        }
      ],
      "handle": "IRT-YUANJHEN-TW",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/IRT-YUANJHEN-TW",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/autnum/131149"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "abuse"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-YUANJHEN-TW"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Yuan-Jhen Info., Co., Ltd\n12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,\nNew Taipei City, 235"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2023-02-10T08:13:55Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2023-02-10T08:13:55Z"
        }
      ],
      "handle": "YN371-AP",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/YN371-AP",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/autnum/131149"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "technical",
        "administrative"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "YUANJHEN NOC"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ],
          [
            "adr",
            {
              "label": "12F., No.866-11, Zhongzheng Rd., Zhonghe Dist., New Taipei City, 235, R.O.C"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+886-2-7753-7313"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2013-03-21T06:38:02Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2025-11-06T09:29:49Z"
    }
  ],
  "handle": "AS131149",
  "links": [
    {
      "href": "https://rdap.apnic.net/autnum/131149",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.apnic.net/autnum/131149"
    }
  ],
  "name": "YUANJHEN-AS-TW",
  "notices": [
    {
      "description": [
        "Objects returned came from source",
        "APNIC"
      ],
      "title": "Source"
    },
    {
      "description": [
        "This is the APNIC WHOIS Database query service. The objects are in RDAP format."
      ],
      "links": [
        {
          "href": "http://www.apnic.net/db/dbcopyright.html",
          "rel": "terms-of-service",
          "type": "text/html",
          "value": "https://rdap.apnic.net/autnum/131149"
        }
      ],
      "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://rdap.apnic.net/autnum/131149"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    }
  ],
  "objectClassName": "autnum",
  "port43": "whois.apnic.net",
  "rdapConformance": [
    "history_version_0",
    "nro_rdap_profile_0",
    "nro_rdap_profile_asn_hierarchical_0",
    "cidr0",
    "rdap_level_0"
  ],
  "remarks": [
    {
      "description": [
        "Yuan-Jhen Info., Co., Ltd",
        "12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,",
        "New Taipei City Taiwan 235"
      ],
      "title": "description"
    }
  ],
  "startAutnum": 131149,
  "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.