Whois & RDAP Lookup

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43.255.168.0/24

RDAP
IP Range43.255.168.0 - 43.255.169.255
Handle43.255.168.0 - 43.255.169.255
NameUNICOM-HK
TypeALLOCATED NON-PORTABLE
CountryDE
Registered2023-03-09 07:25 UTC
Updated2023-03-09 07:26 UTC
Admin ContactNicholas Wong
Phone+852 26268881
Address28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong
Tech ContactNicholas Wong
Phone+852 26268881
Address28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong
Abuse Contact[email protected]
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 '43.255.168.0 - 43.255.169.255'

% Abuse contact for '43.255.168.0 - 43.255.169.255' is '[email protected]'

inetnum:        43.255.168.0 - 43.255.169.255
netname:        UNICOM-HK
descr:          China Unicom Global Limited
country:        DE
admin-c:        NW165-AP
tech-c:         NW165-AP
abuse-c:        AU99-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-HK-UNICOM
mnt-irt:        IRT-UNICOM-HK
last-modified:  2023-03-09T07:26:20Z
source:         APNIC

irt:            IRT-UNICOM-HK
address:        28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        NW165-AP
tech-c:         NW165-AP
auth:           # Filtered
remarks:        [email protected]
remarks:        [email protected] was validated on 2026-03-26
remarks:        [email protected] was validated on 2026-08-13
mnt-by:         MAINT-HK-UNICOM
last-modified:  2026-08-13T02:59:18Z
source:         APNIC

role:           ABUSE UNICOMHK
country:        ZZ
address:        28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong
phone:          +000000000
e-mail:         [email protected]
admin-c:        NW165-AP
tech-c:         NW165-AP
nic-hdl:        AU99-AP
remarks:        Generated from irt object IRT-UNICOM-HK
remarks:        [email protected] was validated on 2026-03-26
remarks:        [email protected] was validated on 2026-08-13
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-13T03:00:47Z
source:         APNIC

person:         Nicholas Wong
address:        28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong
country:        HK
phone:          +852 26268881
e-mail:         [email protected]
nic-hdl:        NW165-AP
notify:         [email protected]
mnt-by:         MAINT-HK-UNICOM
last-modified:  2018-03-09T01:50:33Z
source:         APNIC

% Information related to '43.255.168.0/24AS10099'

route:          43.255.168.0/24
origin:         AS10099
descr:          China Unicom (Hong Kong) Operations Limited
                28F, Tower 1, The gateway
                25 Canton Road
                Tsim Sha Tsui
mnt-by:         MAINT-HK-UNICOM
last-modified:  2024-12-12T03:04:00Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-SG1)

% Query time: 571 msec
% WHEN: Tue Sep 15 23:51:32 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
  "cidr0_cidrs": [
    {
      "length": 23,
      "v4prefix": "43.255.168.0"
    }
  ],
  "country": "DE",
  "endAddress": "43.255.169.255",
  "entities": [
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2011-03-16T08:18:52Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-08-13T02:59:18Z"
        }
      ],
      "handle": "IRT-UNICOM-HK",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/IRT-UNICOM-HK",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/ip/43.255.168.0/24"
        }
      ],
      "objectClassName": "entity",
      "remarks": [
        {
          "description": [
            "[email protected]",
            "[email protected] was validated on 2026-03-26",
            "[email protected] was validated on 2026-08-13"
          ],
          "title": "remarks"
        }
      ],
      "roles": [
        "abuse"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-UNICOM-HK"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2011-09-28T07:57:42Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2018-03-09T01:50:33Z"
        }
      ],
      "handle": "NW165-AP",
      "links": [
        {
          "href": "https://rdap.apnic.net/entity/NW165-AP",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.apnic.net/ip/43.255.168.0/24"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "administrative",
        "technical"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Nicholas Wong"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ],
          [
            "adr",
            {
              "label": "28/F, Tower 1, The gateway, 25 Canton road, TST, Hong Kong"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+852 26268881"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2023-03-09T07:25:56Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2023-03-09T07:26:20Z"
    }
  ],
  "handle": "43.255.168.0 - 43.255.169.255",
  "ipVersion": "v4",
  "links": [
    {
      "href": "https://rdap.apnic.net/ip/43.255.168.0/23",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.apnic.net/ip/43.255.168.0/24"
    }
  ],
  "name": "UNICOM-HK",
  "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/ip/43.255.168.0/24"
        }
      ],
      "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/ip/43.255.168.0/24"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    }
  ],
  "objectClassName": "ip network",
  "port43": "whois.apnic.net",
  "rdapConformance": [
    "history_version_0",
    "nro_rdap_profile_0",
    "cidr0",
    "rdap_level_0"
  ],
  "remarks": [
    {
      "description": [
        "China Unicom Global Limited"
      ],
      "title": "description"
    }
  ],
  "startAddress": "43.255.168.0",
  "status": [
    "active"
  ],
  "type": "ALLOCATED NON-PORTABLE"
}

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.