Whois & RDAP Lookup

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

% Information related to 'AS139578 - AS140601'

as-block:       AS139578 - AS140601
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:  2019-06-13T01:03:23Z
source:         APNIC

role:           APNIC Hostmaster
address:        6 Cordelia Street
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:  2013-10-23T04:06:51Z
source:         APNIC

% Information related to 'AS140577'

% Abuse contact for 'AS140577' is '[email protected]'

aut-num:        AS140577
as-name:        AHREFS-AS-AP
descr:          Ahrefs Pte Ltd
country:        SG
import:         from AS174 accept ANY
import:         from AS6939 accept ANY
import:         from AS6453  accept ANY
import:         from AS24115 accept ANY
import:         from AS6461 accept ANY
export:         to AS174 announce AS140577
export:         to AS6939 announce RS-AHREFS-SG
export:         to AS6453 announce RS-AHREFS-SG
export:         to AS24115  announce RS-AHREFS-SG
export:         to AS6461 announce RS-AHREFS-US
org:            ORG-APL63-AP
admin-c:        APLA38-AP
tech-c:         APLA38-AP
abuse-c:        AA1705-AP
mnt-lower:      MAINT-AHREFS-SG
mnt-routes:     MAINT-AHREFS-SG
mnt-by:         APNIC-HM
mnt-irt:        IRT-AHREFS-SG
last-modified:  2023-07-24T09:58:06Z
source:         APNIC

irt:            IRT-AHREFS-SG
address:        Marina One East Tower,, 7 Straits View,
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        APLA38-AP
tech-c:         APLA38-AP
auth:           # Filtered
remarks:        [email protected] is invalid
mnt-by:         MAINT-AHREFS-SG
last-modified:  2026-07-22T13:11:36Z
source:         APNIC

organisation:   ORG-APL63-AP
org-name:       Ahrefs Pte Ltd
org-type:       LIR
country:        SG
address:        Marina One East Tower,
address:        7 Straits View, # 08-02
phone:          +6585915924
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:11Z
source:         APNIC

role:           ABUSE AHREFSSG
country:        ZZ
address:        Marina One East Tower,, 7 Straits View,
phone:          +000000000
e-mail:         [email protected]
admin-c:        APLA38-AP
tech-c:         APLA38-AP
nic-hdl:        AA1705-AP
remarks:        Generated from irt object IRT-AHREFS-SG
remarks:        [email protected] is invalid
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2026-07-22T13:12:02Z
source:         APNIC

role:           Ahrefs Pte Ltd administrator
address:        Marina One East Tower,, 7 Straits View, #08-02, Singapore Singapore 018936
country:        SG
phone:          +6585915924
e-mail:         [email protected]
admin-c:        APLA38-AP
tech-c:         APLA38-AP
nic-hdl:        APLA38-AP
mnt-by:         MAINT-AHREFS-SG
last-modified:  2020-04-16T04:37:46Z
source:         APNIC

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

% Query time: 353 msec
% WHEN: Sat Aug 01 15:38:14 UTC 2026

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

{
  "country": "SG",
  "endAutnum": 140577,
  "entities": [
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2020-04-16T04:37:47Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-07-22T13:11:36Z"
        }
      ],
      "handle": "IRT-AHREFS-SG",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/IRT-AHREFS-SG",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/autnum/140577"
        }
      ],
      "objectClassName": "entity",
      "remarks": [
        {
          "description": [
            "[email protected] is invalid"
          ],
          "title": "remarks"
        }
      ],
      "roles": [
        "abuse"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-AHREFS-SG"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Marina One East Tower,, 7 Straits View,"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2020-04-09T13:00:30Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2023-09-05T02:18:11Z"
        }
      ],
      "handle": "ORG-APL63-AP",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/ORG-APL63-AP",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/autnum/140577"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Ahrefs Pte Ltd"
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "Marina One East Tower,\n7 Straits View,"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+6585915924"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2020-04-16T04:37:46Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2020-04-16T04:37:46Z"
        }
      ],
      "handle": "APLA38-AP",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/APLA38-AP",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/autnum/140577"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "technical",
        "administrative"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Ahrefs Pte Ltd administrator"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Marina One East Tower,, 7 Straits View,"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+6585915924"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2020-04-16T04:37:58Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2023-07-24T09:58:06Z"
    }
  ],
  "handle": "AS140577",
  "links": [
    {
      "href": "https://rdap.apnic.net/autnum/140577",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.apnic.net/autnum/140577"
    }
  ],
  "name": "AHREFS-AS-AP",
  "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/140577"
        }
      ],
      "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/140577"
        }
      ],
      "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": [
        "Ahrefs Pte Ltd"
      ],
      "title": "description"
    }
  ],
  "startAutnum": 140577,
  "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.