Whois & RDAP Lookup
PROXIED.COM Dedicated mobile proxies 4G/5G proxies · No caps Dedicated 4G/5G mobile proxies · Direct from trusted sellers Mobile 4G/5G · Dedicated, no sharing Uptime 99.9% · 10 countries Data Unlimited · No caps Customers 20K+ · No middlemen Free/trial Explore marketTry free2400:dd00::/28
RDAPIP Range2400:dd00:: - 2400:dd0f:ffff:ffff:ffff:ffff:ffff:ffff
Handle2400:dd00::/28
NameCSTNET-CN
TypeALLOCATED PORTABLE
CountryCN
HolderCNIC-CAS
Registered2023-10-09 03:47 UTC
Updated2023-10-09 03:47 UTC
RegistrantCNIC-CAS
Email[email protected]
Phone+86.10.58812266
Address2 Dongsheng South Road, Haidian District
Admin ContactComputer Network Information Center of Chinese Academy of Sciences administrator
Email[email protected]
Phone+86.10.58812266
Address2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
Tech ContactComputer Network Information Center of Chinese Academy of Sciences administrator
Email[email protected]
Phone+86.10.58812266
Address2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
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 '2400:dd00::/28' % Abuse contact for '2400:dd00::/28' is '[email protected]' inet6num: 2400:dd00::/28 netname: CSTNET-CN descr: Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) country: CN org: ORG-CA107-AP admin-c: CNIC1-AP tech-c: CNIC1-AP abuse-c: AC2741-AP status: ALLOCATED PORTABLE remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-CSTNET-CN mnt-routes: MAINT-CSTNET-CN mnt-irt: IRT-CSTNET-CN last-modified: 2023-10-09T03:47:49Z source: APNIC irt: IRT-CSTNET-CN address: 2 Dongsheng South Road, Haidian District, Beijing Beijing 100190 e-mail: [email protected] abuse-mailbox: [email protected] admin-c: CNIC1-AP tech-c: CNIC1-AP auth: # Filtered remarks: [email protected] was validated on 2026-05-11 mnt-by: MAINT-CSTNET-CN last-modified: 2026-05-11T05:28:58Z source: APNIC organisation: ORG-CA107-AP org-name: CNIC-CAS org-type: LIR country: CN address: 2 Dongsheng South Road, Haidian District phone: +86.10.58812266 e-mail: [email protected] mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T02:18:50Z source: APNIC role: ABUSE CSTNETCN country: ZZ address: 2 Dongsheng South Road, Haidian District, Beijing Beijing 100190 phone: +000000000 e-mail: [email protected] admin-c: CNIC1-AP tech-c: CNIC1-AP nic-hdl: AC2741-AP remarks: Generated from irt object IRT-CSTNET-CN remarks: [email protected] was validated on 2026-05-11 abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2026-05-11T05:29:17Z source: APNIC role: Computer Network Information Center of Chinese Academy of Sciences administrator address: 2 Dongsheng South Road, Haidian District, Beijing Beijing 100190 country: CN phone: +86.10.58812266 e-mail: [email protected] admin-c: CNIC1-AP tech-c: CNIC1-AP nic-hdl: CNIC1-AP mnt-by: MAINT-CNICOCAOS-CN last-modified: 2022-05-12T07:31:01Z source: APNIC % Information related to '2400:dd00::/28AS7497' route6: 2400:dd00::/28 descr: CHINA SCIENCE AND TECHNOLOGY NETWORK country: CN origin: AS7497 notify: [email protected] mnt-by: MAINT-CSTNET-CN last-modified: 2023-10-06T05:09:27Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-SG1) % Query time: 556 msec % WHEN: Sun Aug 16 23:03:03 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 28,
"v6prefix": "2400:dd00::"
}
],
"country": "CN",
"endAddress": "2400:dd0f:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2021-11-05T02:16:35Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-05-11T05:28:58Z"
}
],
"handle": "IRT-CSTNET-CN",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-CSTNET-CN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/2400:dd00::/28"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] was validated on 2026-05-11"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-CSTNET-CN"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "2 Dongsheng South Road, Haidian District, Beijing Beijing 100190"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2022-03-16T12:59:17Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-09-05T02:18:50Z"
}
],
"handle": "ORG-CA107-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/ORG-CA107-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/2400:dd00::/28"
}
],
"objectClassName": "entity",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CNIC-CAS"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "2 Dongsheng South Road, Haidian District"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86.10.58812266"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2022-05-12T07:31:01Z"
},
{
"eventAction": "last changed",
"eventDate": "2022-05-12T07:31:01Z"
}
],
"handle": "CNIC1-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/CNIC1-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/2400:dd00::/28"
}
],
"objectClassName": "entity",
"roles": [
"technical",
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Computer Network Information Center of Chinese Academy of Sciences administrator"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "2 Dongsheng South Road, Haidian District, Beijing Beijing 100190"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86.10.58812266"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2023-10-09T03:47:49Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-10-09T03:47:49Z"
}
],
"handle": "2400:dd00::/28",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.apnic.net/ip/2400:dd00::/28",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/2400:dd00::/28"
}
],
"name": "CSTNET-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/2400:dd00::/28"
}
],
"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/2400:dd00::/28"
}
],
"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": [
"Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)"
],
"title": "description"
},
{
"description": [
"--------------------------------------------------------",
"To report network abuse, please contact mnt-irt",
"For troubleshooting, please contact tech-c and admin-c",
"Report invalid contact via www.apnic.net/invalidcontact",
"--------------------------------------------------------"
],
"title": "remarks"
}
],
"startAddress": "2400:dd00::",
"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.