Whois & RDAP Lookup
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RDAPIP Range240a:4000:: - 240a:47ff:ffff:ffff:ffff:ffff:ffff:ffff
Handle240a:4000::/21
NameCBN-CN
TypeALLOCATED PORTABLE
CountryCN
HolderChina Internet Network Information Center
Registered2017-12-29 00:46 UTC
Updated2023-11-28 00:57 UTC
RegistrantChina Internet Network Information Center
Email[email protected]
Phone+86-10-58813000
AddressFloor1, Building No.1 C/-Chinese Academy of Sciences, 4, South 4th Street, Haidian District,
Admin ContactDu WuGong
Email[email protected]
Phone+86-18910181213
AddressNo.10 Baiyun Road, Xicheng District, Beijing
Tech ContactYang Xu
Email[email protected]
Phone+86-15611030112
AddressNo.10 Baiyun Road, Xicheng District, Beijing
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.apnic.net
Raw WHOIS response
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '240a:4000::/21' % Abuse contact for '240a:4000::/21' is '[email protected]' inet6num: 240a:4000::/21 netname: CBN-CN descr: China Broadcasting Network Corporation Ltd. descr: No.10 Baiyun Road, Xicheng District, Beijing country: CN org: ORG-CINI1-AP admin-c: YW6871-AP tech-c: JS4056-AP abuse-c: AC1601-AP status: ALLOCATED PORTABLE mnt-by: MAINT-CNNIC-AP mnt-irt: IRT-CBN-CN-CN mnt-lower: MAINT-CNNIC-AP mnt-routes: MAINT-CNNIC-AP last-modified: 2023-11-28T00:57:52Z source: APNIC irt: IRT-CBN-CN-CN address: NO.42 Ling Jing Hutong,Xicheng District e-mail: [email protected] abuse-mailbox: [email protected] admin-c: CBNC1-AP tech-c: CBNC1-AP auth: # Filtered mnt-by: MAINT-CNNIC-AP last-modified: 2025-11-18T00:34:44Z source: APNIC organisation: ORG-CINI1-AP org-name: China Internet Network Information Center org-type: NIR country: CN address: Floor1, Building No.1 C/-Chinese Academy of Sciences address: 4, South 4th Street address: Haidian District, phone: +86-10-58813000 fax-no: +86-10-58813075 e-mail: [email protected] mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T01:49:56Z source: APNIC role: ABUSE CNNICCN country: ZZ address: Beijing, China phone: +000000000 e-mail: [email protected] admin-c: IP50-AP tech-c: IP50-AP nic-hdl: AC1601-AP remarks: Generated from irt object IRT-CNNIC-CN remarks: [email protected] is invalid abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2025-09-19T17:20:32Z source: APNIC person: Yang Xu address: No.10 Baiyun Road, Xicheng District, Beijing country: CN phone: +86-15611030112 e-mail: [email protected] nic-hdl: JS4056-AP mnt-by: MAINT-CNNIC-AP last-modified: 2017-12-26T06:05:53Z source: APNIC person: Du WuGong address: No.10 Baiyun Road, Xicheng District, Beijing country: CN phone: +86-18910181213 e-mail: [email protected] nic-hdl: YW6871-AP mnt-by: MAINT-CNNIC-AP last-modified: 2017-12-26T06:05:53Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-SG1) % Query time: 446 msec % WHEN: Fri Aug 14 04:27:01 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 21,
"v6prefix": "240a:4000::"
}
],
"country": "CN",
"endAddress": "240a:47ff:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2017-08-08T23:23:56Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-09-05T01:49:56Z"
}
],
"handle": "ORG-CINI1-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/ORG-CINI1-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/240a:42c4::/31"
}
],
"objectClassName": "entity",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"China Internet Network Information Center"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Floor1, Building No.1 C/-Chinese Academy of Sciences\n4, South 4th Street\nHaidian District,"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-10-58813000"
],
[
"tel",
{
"type": "fax"
},
"text",
"+86-10-58813075"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2017-12-26T06:05:53Z"
},
{
"eventAction": "last changed",
"eventDate": "2017-12-26T06:05:53Z"
}
],
"handle": "JS4056-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/JS4056-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/240a:42c4::/31"
}
],
"objectClassName": "entity",
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Yang Xu"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "No.10 Baiyun Road, Xicheng District, Beijing"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-15611030112"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2017-12-26T06:05:53Z"
},
{
"eventAction": "last changed",
"eventDate": "2017-12-26T06:05:53Z"
}
],
"handle": "YW6871-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/YW6871-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/240a:42c4::/31"
}
],
"objectClassName": "entity",
"roles": [
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Du WuGong"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "No.10 Baiyun Road, Xicheng District, Beijing"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-18910181213"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2021-07-01T08:21:25Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-11-18T00:34:44Z"
}
],
"handle": "IRT-CBN-CN-CN",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-CBN-CN-CN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/240a:42c4::/31"
}
],
"objectClassName": "entity",
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-CBN-CN-CN"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "NO.42 Ling Jing Hutong,Xicheng District"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2017-12-29T00:46:51Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-11-28T00:57:52Z"
}
],
"handle": "240a:4000::/21",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.apnic.net/ip/240a:4000::/21",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/240a:42c4::/31"
}
],
"name": "CBN-CN",
"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/240a:42c4::/31"
}
],
"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/240a:42c4::/31"
}
],
"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 Broadcasting Network Corporation Ltd.",
"No.10 Baiyun Road, Xicheng District, Beijing"
],
"title": "description"
}
],
"startAddress": "240a:4000::",
"status": [
"active"
],
"type": "ALLOCATED 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.