Whois & RDAP Lookup
AS23910
RDAPHandleAS23910
NameCNGI-CERNET2-AS-AP
CountryCN
Registered2008-09-04 06:40 UTC
Updated2020-09-03 09:16 UTC
Admin ContactCERNET Helpdesk
Email[email protected]
Phone+86-10-6278-4049
AddressCERNET Center, Beijing 100084, China
Tech ContactCERNET Helpdesk
Email[email protected]
Phone+86-10-6278-4049
AddressCERNET Center, Beijing 100084, China
Abuse Contact[email protected]
Abuse Phone+86-10-62784301
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 'AS23552 - AS24575' as-block: AS23552 - AS24575 descr: APNIC ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region remarks: AS23889 has been transfered to AfriNIC admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2009-09-29T06:04:16Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: [email protected] admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: [email protected] mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC % Information related to 'AS23854 - AS23944' as-block: AS23854 - AS23944 descr: APNIC ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2008-09-04T06:40:26Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: [email protected] admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: [email protected] mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC % Information related to 'AS23910' % Abuse contact for 'AS23910' is '[email protected]' aut-num: AS23910 as-name: CNGI-CERNET2-AS-AP descr: China Next Generation Internet CERNET2 descr: CNGI-CERNET descr: Beijing 100084, China country: CN import: from AS4538 action pref=10; accept ANY import: from AS4839 action pref=10; accept ANY import: from AS4840 action pref=10; accept ANY import: from AS9406 action pref=10; accept ANY import: from AS9407 action pref=10; accept ANY export: to AS9406 announce AS23910 AS4538 AS9407 AS4839 AS4840 export: to AS4538 announce AS23910 AS9406 AS9407 AS4839 AS4840 export: to AS9407 announce AS23910 AS4538 AS9406 AS4839 AS4840 export: to AS4840 announce AS23910 AS4538 AS9406 AS9407 AS4839 export: to AS4839 announce AS23910 AS4538 AS9406 AS9407 AS4840 default: to AS4538 action pref=10; networks ANY remarks: Multihome portion of CERNET admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-by: APNIC-HM mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:14Z source: APNIC irt: IRT-CERNET-AP address: Network Center, address: FIT-3-220, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 fax-no: +86-10-62785933 e-mail: [email protected] abuse-mailbox: [email protected] admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: [email protected] was validated on 2026-03-05 mnt-by: MAINT-CERNET-AP last-modified: 2026-05-25T09:07:47Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Center, address: FIT-3-220, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 e-mail: [email protected] admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: [email protected] was validated on 2026-03-05 abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2026-03-05T06:40:20Z source: APNIC role: CERNET Helpdesk address: CERNET Center address: Beijing 100084, China country: CN phone: +86-10-6278-4049 fax-no: +86-10-6278-5933 e-mail: [email protected] remarks: [email protected] admin-c: XL1-CN tech-c: SZ2-AP nic-hdl: CER-AP mnt-by: MAINT-CERNET-AP last-modified: 2020-09-03T09:14:12Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-SG1) % Query time: 533 msec % WHEN: Wed Sep 02 15:22:21 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
"country": "CN",
"endAutnum": 23910,
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:54:16Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-09-03T09:14:12Z"
}
],
"handle": "CER-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/CER-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/autnum/23910"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected]"
],
"title": "remarks"
}
],
"roles": [
"administrative",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"CERNET Helpdesk"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "CERNET Center\nBeijing 100084, China"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-10-6278-4049"
],
[
"tel",
{
"type": "fax"
},
"text",
"+86-10-6278-5933"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2010-11-26T03:14:01Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-05-25T09:07:47Z"
}
],
"handle": "IRT-CERNET-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-CERNET-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/autnum/23910"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"timezone GMT+8",
"[email protected] was validated on 2026-03-05"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-CERNET-AP"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Network Center,\nFIT-3-220, Tsinghua Univ\nBeijing 100084, China"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-10-62784301"
],
[
"tel",
{
"type": "fax"
},
"text",
"+86-10-62785933"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T06:40:35Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-09-03T09:16:14Z"
}
],
"handle": "AS23910",
"links": [
{
"href": "https://rdap.apnic.net/autnum/23910",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/autnum/23910"
}
],
"name": "CNGI-CERNET2-AS-AP",
"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/autnum/23910"
}
],
"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/autnum/23910"
}
],
"title": "Whois Inaccuracy Reporting"
}
],
"objectClassName": "autnum",
"port43": "whois.apnic.net",
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"nro_rdap_profile_asn_hierarchical_0",
"cidr0",
"rdap_level_0"
],
"remarks": [
{
"description": [
"China Next Generation Internet CERNET2",
"CNGI-CERNET",
"Beijing 100084, China"
],
"title": "description"
},
{
"description": [
"Multihome portion of CERNET"
],
"title": "remarks"
}
],
"startAutnum": 23910,
"status": [
"active"
]
}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.