Telecom Tower & Network Infrastructure Offerings Across India [email protected]
Home About
Services
Blog
Network tools
Contact Get a Quote
Free network tools

AS WHOIS

Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.

Your public IP address216.73.216.222 IPv4

AS23764

CTGNet - CTGNet Announcing routes
AS nameCTGNet
OrganisationChina Telecom Global Limited
CountryHK
Registry (RIR)APNIC
HandleAS23764
RangeAS23764
Registered12 Jun 2020
Last changed20 Jul 2020
Abuse contact[email protected]
184IPv4 prefixes
29IPv6 prefixes
144Upstreams
330Downstreams

Upstreams

ASVisibility
AS335610765
AS67628220
AS69396973
AS32576377
AS311336007
AS29144593
AS12994438
AS1743552
AS482002740
AS380082272
AS77132157
AS345492117
AS506291665
AS34911607
AS349271491

Downstreams

ASVisibility
AS3815831215
AS4589929382
AS480027833
AS3113313260
AS48096949
AS69396408
AS41346170
AS204855588
AS309905334
AS95345297
AS238564338
AS457964099
AS1390093818
AS1368973497
AS1328762683
IPv4 prefixes (184)
147.78.135.0/24203.14.188.0/24203.86.126.0/2445.196.27.0/24203.34.194.0/24203.80.138.0/2445.196.25.0/24203.86.115.0/24218.185.245.0/24203.86.109.0/24203.12.200.0/24203.86.106.0/24203.14.190.0/2469.194.163.0/24102.217.164.0/24203.129.9.0/24154.209.21.0/24203.119.125.0/24203.14.189.0/245.154.157.0/24121.59.100.0/24203.144.101.0/24203.144.103.0/2445.196.24.0/24203.100.54.0/24154.72.46.0/2445.195.4.0/24125.93.26.0/24203.86.127.0/2461.186.2.0/24203.119.120.0/2469.194.175.0/24203.99.11.0/24203.33.8.0/24220.174.26.0/23183.91.63.0/24121.59.38.0/2479.139.11.0/24202.55.30.0/24203.15.116.0/24203.128.229.0/24156.238.20.0/24220.247.140.0/24121.59.106.0/245.154.158.0/24218.185.243.0/24203.195.115.0/24203.119.124.0/24203.19.38.0/24203.196.13.0/24154.209.23.0/24203.80.137.0/24154.72.40.0/24203.82.19.0/24203.89.12.0/2469.194.172.0/2479.139.5.0/24131.221.83.0/2495.130.199.0/24102.217.167.0/24203.20.142.0/24203.80.139.0/24202.55.3.0/24154.72.43.0/245.154.144.0/24203.196.9.0/24203.8.30.0/24203.56.55.0/24202.55.8.0/21202.55.2.0/24156.242.8.0/24203.12.202.0/245.154.156.0/24131.221.81.0/24203.15.113.0/24145.14.64.0/24203.89.10.0/24203.20.137.0/24203.80.141.0/24203.20.51.0/2469.194.173.0/24202.55.16.0/24203.86.113.0/24203.128.224.0/24202.55.6.0/24203.80.136.0/24203.19.37.0/24139.189.127.0/245.154.155.0/24203.82.17.0/2463.140.14.0/24203.99.10.0/24203.81.0.0/24218.30.39.0/245.154.130.0/24203.81.6.0/23203.20.136.0/24203.86.103.0/24203.12.203.0/24145.14.79.0/2479.139.6.0/24203.20.143.0/24203.12.204.0/24121.59.122.0/24218.185.241.0/245.154.146.0/24185.75.172.0/24145.14.69.0/24145.14.92.0/245.154.145.0/24202.55.15.0/2479.139.13.0/24203.86.111.0/24203.12.201.0/24154.72.41.0/24203.196.14.0/24203.20.140.0/24203.144.105.0/24203.196.15.0/24203.20.141.0/24154.72.42.0/24203.81.6.0/24203.99.13.0/245.154.154.0/24203.128.230.0/24203.34.199.0/24125.93.25.0/2479.139.14.0/24203.34.196.0/24125.93.27.0/2445.195.5.0/24218.30.62.0/23102.217.166.0/2463.140.8.0/24203.19.32.0/2495.130.194.0/24203.12.205.0/24202.55.5.0/245.154.159.0/24183.91.51.0/2463.140.4.0/245.154.147.0/24220.247.141.0/24202.55.7.0/24203.33.9.0/24203.82.23.0/24154.72.45.0/24203.144.104.0/24203.196.10.0/24202.55.14.0/2479.139.4.0/24203.15.117.0/24203.33.10.0/24121.59.120.0/24125.93.24.0/24203.81.3.0/24131.221.80.0/24203.196.11.0/24203.14.191.0/24210.48.140.0/22203.15.118.0/24220.174.94.0/23203.196.12.0/24203.81.4.0/2445.195.7.0/2479.139.8.0/24203.34.197.0/245.10.136.0/24121.59.124.0/24156.242.4.0/24210.48.136.0/22203.82.18.0/24131.221.82.0/2469.194.171.0/24121.59.140.0/24203.196.8.0/24203.89.11.0/24203.19.32.0/22147.78.133.0/2495.130.192.0/24203.100.52.0/2479.139.10.0/24202.55.17.0/24121.59.109.0/24
IPv6 prefixes (29)

RPKI-validate all prefixes of AS23764

Contacts

RoleNameHandleEmail / phoneAddress
administrative, technicalCHINA TELECOM GLOBAL LIMITED - network administratorCTGL1-AP[email protected], +852 3100000038/F., DAH SING Financial Center,, 108 Gloucester Road, Wan Chai,
abuseIRT-CTHKI-HKIRT-CTHKI-HK[email protected], [email protected]38/F., DAH SING Financial Center, 108 Gloucester Road, Wan Chai, Hong Kong
registrantChina Telecom Global LimitedORG-CTGL1-AP[email protected], +852-31000000, +852-3100000028/F, Everbright Center, 108 Gloucester Road
Raw registry response
{
    "rdapConformance": [
        "history_version_0",
        "nro_rdap_profile_0",
        "nro_rdap_profile_asn_hierarchical_0",
        "cidr0",
        "rdap_level_0"
    ],
    "notices": [
        {
            "title": "Source",
            "description": [
                "Objects returned came from source",
                "APNIC"
            ]
        },
        {
            "title": "Terms and Conditions",
            "description": [
                "This is the APNIC WHOIS Database query service. The objects are in RDAP format."
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/autnum/23764",
                    "rel": "terms-of-service",
                    "href": "http://www.apnic.net/db/dbcopyright.html",
                    "type": "text/html"
                }
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit: "
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/autnum/23764",
                    "rel": "inaccuracy-report",
                    "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
                    "type": "text/html"
                }
            ]
        }
    ],
    "country": "HK",
    "name": "CTGNet",
    "status": [
        "active"
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2020-06-12T06:15:42Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2020-07-20T08:05:00Z"
        }
    ],
    "links": [
        {
            "value": "https://rdap.apnic.net/autnum/23764",
            "rel": "self",
            "href": "https://rdap.apnic.net/autnum/23764",
            "type": "application/rdap+json"
        }
    ],
    "remarks": [
        {
            "description": [
                "CTGNet",
                "China Telecom Global Limited"
            ],
            "title": "description"
        }
    ],
    "entities": [
        {
            "roles": [
                "administrative",
                "technical"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2012-11-23T01:30:23Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2012-11-23T01:36:05Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/autnum/23764",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/CTGL1-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "CTGL1-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "CHINA TELECOM GLOBAL LIMITED  - network administrator"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "38/F., DAH SING Financial Center,\n108 Gloucester Road, Wan Chai,"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+852 31000000"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "[email protected]"
                    ]
                ]
            ]
        },
        {
            "roles": [
                "abuse"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2011-02-22T02:14:46Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2026-06-24T01:13:46Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/autnum/23764",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/IRT-CTHKI-HK",
                    "type": "application/rdap+json"
                }
            ],
            "remarks": [
                {
                    "description": [
                        "[email protected]",
                        "[email protected] was validated on 2026-06-24"
                    ],
                    "title": "remarks"
                }
            ],
            "handle": "IRT-CTHKI-HK",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "IRT-CTHKI-HK"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "38/F., DAH SING Financial Center, 108 Gloucester Road, Wan Chai, Hong Kong"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "[email protected]"
                    ],
                    [
                        "email",
                        {
                            "pref": "1"
                        },
                        "text",
                        "[email protected]"
                    ]
                ]
            ]
        },
        {
            "roles": [
                "registrant"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2017-08-08T23:22:00Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2023-09-05T02:15:35Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/autnum/23764",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/ORG-CTGL1-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "ORG-CTGL1-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "China Telecom Global Limited"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ],
                    [
                        "adr",
                        {
                            "label": "28/F, Everbright Center\n108 Gloucester Road"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+852-31000000"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+852-31000000"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "[email protected]"
                    ]
                ]
            ]
        }
    ],
    "handle": "AS23764",
    "startAutnum": 23764,
    "endAutnum": 23764,
    "objectClassName": "autnum",
    "port43": "whois.apnic.net"
}

Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.

Need help with RPKI, routing security or IP management?