Whois & RDAP Lookup

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81.173.20.0/22

RDAP
IP Range81.173.16.0 - 81.173.31.255
Handle81.173.16.0 - 81.173.31.255
NameUK-CHINATELECOM-20030219
TypeALLOCATED PA
CountryGB
HolderCTE-MNT
Registered2017-08-04 11:09 UTC
Updated2017-08-04 11:09 UTC
RegistrantCTE-MNT
Admin ContactMingzhi Sun
Phone+447410429298
Address11th Floor, Exchange Tower, 1 Harbour Exchange Square, London, E14 9GE, United Kingdom
Tech ContactMingzhi Sun
Phone+447410429298
Address11th Floor, Exchange Tower, 1 Harbour Exchange Square, London, E14 9GE, United Kingdom
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.db.ripe.net
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Raw WHOIS response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '81.173.20.0 - 81.173.20.255'

% Abuse contact for '81.173.20.0 - 81.173.20.255' is '[email protected]'

inetnum:        81.173.20.0 - 81.173.20.255
netname:        CTE-NET
descr:          China Telecom (Europe) Ltd.
country:        DE
admin-c:        WY74-RIPE
tech-c:         WY74-RIPE
status:         ASSIGNED PA
mnt-by:         CTE-MNT
created:        2020-05-12T15:03:54Z
last-modified:  2020-05-12T15:03:54Z
source:         RIPE

person:         Wei Yang
address:        11th Floor, Exchange Tower, 1 Harbour Exchange Square, London, E14 9GE, United Kingdom
phone:          +442075378279
nic-hdl:        WY74-RIPE
mnt-by:         CTE-MNT
created:        2012-05-01T14:39:08Z
last-modified:  2024-12-02T15:35:52Z
source:         RIPE

% Information related to '81.173.20.0/24AS4134'

route:          81.173.20.0/24
descr:          China Telecom Europe Ltd.
origin:         AS4134
mnt-by:         CTE-MNT
created:        2020-06-17T14:00:00Z
last-modified:  2020-06-17T14:00:00Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.124.1 (BUSA)

% Query time: 737 msec
% WHEN: Sat Sep 05 17:55:16 UTC 2026
Raw RDAP JSON (registry) https://rdap.db.ripe.net
{
  "cidr0_cidrs": [
    {
      "length": 20,
      "v4prefix": "81.173.16.0"
    }
  ],
  "country": "GB",
  "endAddress": "81.173.31.255",
  "entities": [
    {
      "handle": "CTE-MNT",
      "links": [
        {
          "href": "https://rdap.db.ripe.net/entity/CTE-MNT",
          "rel": "self",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        },
        {
          "href": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "value": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "CTE-MNT"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "handle": "MS41540-RIPE",
      "links": [
        {
          "href": "https://rdap.db.ripe.net/entity/MS41540-RIPE",
          "rel": "self",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        },
        {
          "href": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "value": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "administrative",
        "technical"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
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          ],
          [
            "fn",
            {},
            "text",
            "Mingzhi Sun"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ],
          [
            "adr",
            {
              "label": "11th Floor, Exchange Tower, 1 Harbour Exchange Square, London, E14 9GE, United Kingdom"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+447410429298"
          ]
        ]
      ]
    },
    {
      "handle": "ORG-CTEL2-RIPE",
      "links": [
        {
          "href": "https://rdap.db.ripe.net/entity/ORG-CTEL2-RIPE",
          "rel": "self",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        },
        {
          "href": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "value": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
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          ],
          [
            "fn",
            {},
            "text",
            "China Telecom Europe Ltd."
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "11th Floor, Exchange Tower, 1 Harbour Exchange Square,\nE14 9GE\nLondon\nUNITED KINGDOM"
            },
            "text",
            [
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              "",
              "",
              "",
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            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+442075378279"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+442075377044"
          ]
        ]
      ]
    },
    {
      "handle": "RIPE-NCC-HM-MNT",
      "links": [
        {
          "href": "https://rdap.db.ripe.net/entity/RIPE-NCC-HM-MNT",
          "rel": "self",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        },
        {
          "href": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "value": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "registrant",
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "RIPE-NCC-HM-MNT"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ],
          [
            "org",
            {},
            "text",
            "ORG-NCC1-RIPE"
          ]
        ]
      ]
    },
    {
      "handle": "WY74-RIPE",
      "links": [
        {
          "href": "https://rdap.db.ripe.net/entity/WY74-RIPE",
          "rel": "self",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        },
        {
          "href": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "value": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity",
      "roles": [
        "administrative"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Wei Yang"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ],
          [
            "adr",
            {
              "label": "11th Floor, Exchange Tower, 1 Harbour Exchange Square, London, E14 9GE, United Kingdom"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+442075378279"
          ]
        ]
      ]
    },
    {
      "entities": [
        {
          "handle": "CTE-MNT",
          "links": [
            {
              "href": "https://rdap.db.ripe.net/entity/CTE-MNT",
              "rel": "self",
              "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
            },
            {
              "href": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "value": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity",
          "roles": [
            "registrant"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "CTE-MNT"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ]
        }
      ],
      "handle": "AR17557-RIPE",
      "objectClassName": "entity",
      "roles": [
        "abuse"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Abuse-C Role"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "China Telecom (Europe) Ltd.\n11th Floor, Exchange Tower, 1 Harbour Exchange Square\nE14 9SZ\nLondon\nUNITED KINGDOM"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {
              "type": "abuse"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2017-08-04T11:09:16Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2017-08-04T11:09:16Z"
    }
  ],
  "handle": "81.173.16.0 - 81.173.31.255",
  "ipVersion": "v4",
  "links": [
    {
      "href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/81.173.16.0%20-%2081.173.31.255",
      "rel": "rdap-up",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-up/81.173.16.0%20-%2081.173.31.255?status=active",
      "rel": "rdap-up rdap-active",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-down/81.173.16.0%20-%2081.173.31.255",
      "rel": "rdap-down",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/81.173.16.0%20-%2081.173.31.255",
      "rel": "rdap-top",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-top/81.173.16.0%20-%2081.173.31.255?status=active",
      "rel": "rdap-top rdap-active",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "https://rdap.db.ripe.net/ips/rirSearch1/rdap-bottom/81.173.16.0%20-%2081.173.31.255",
      "rel": "rdap-bottom",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "https://rdap.db.ripe.net/ip/81.173.20.0/22",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
    },
    {
      "href": "http://www.ripe.net/data-tools/support/documentation/terms",
      "rel": "copyright",
      "value": "http://www.ripe.net/data-tools/support/documentation/terms"
    }
  ],
  "name": "UK-CHINATELECOM-20030219",
  "notices": [
    {
      "description": [
        "This output has been filtered."
      ],
      "title": "Filtered"
    },
    {
      "description": [
        "If you see inaccuracies in the results, please visit:"
      ],
      "links": [
        {
          "href": "https://www.ripe.net/contact-form?topic=ripe_dbm\u0026show_form=true",
          "rel": "inaccuracy-report",
          "type": "text/html",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Objects returned came from source",
        "RIPE"
      ],
      "title": "Source"
    },
    {
      "description": [
        "This is the RIPE Database query service. The objects are in RDAP format."
      ],
      "links": [
        {
          "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
          "rel": "terms-of-service",
          "type": "application/pdf",
          "value": "https://rdap.db.ripe.net/ip/81.173.20.0/22"
        }
      ],
      "title": "Terms and Conditions"
    }
  ],
  "objectClassName": "ip network",
  "parentHandle": "0.0.0.0 - 255.255.255.255",
  "port43": "whois.ripe.net",
  "rdapConformance": [
    "geofeed1",
    "rirSearch1",
    "ips",
    "cidr0",
    "rdap_level_0",
    "nro_rdap_profile_0",
    "redacted"
  ],
  "redacted": [
    {
      "method": "removal",
      "name": {
        "description": "Personal e-mail information"
      },
      "prePath": "$.entities[?(@.handle=='MS41540-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "reason": {
        "description": "Personal data"
      }
    },
    {
      "method": "removal",
      "name": {
        "description": "Personal e-mail information"
      },
      "prePath": "$.entities[?(@.handle=='ORG-CTEL2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "reason": {
        "description": "Personal data"
      }
    },
    {
      "method": "removal",
      "name": {
        "description": "Personal e-mail information"
      },
      "prePath": "$.entities[?(@.handle=='AR17557-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "reason": {
        "description": "Personal data"
      }
    }
  ],
  "startAddress": "81.173.16.0",
  "status": [
    "active"
  ],
  "type": "ALLOCATED PA"
}

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.