Organization
CERNET2-TJU6
Location
Changhongjie (Nankai Qu)
Tianjin, China (CN)
Hostname
—
Geolocation
China (CN) China
- Country
- China (CN)
- Region
- Tianjin
- City
- Changhongjie (Nankai Qu)
- Continent
- Asia
- Coordinates
- 39.1081, 117.176 View on map ↗
Network Information
IP Range 2403:ac00:: – 2403:ac00:ffff:ffff:ffff:ffff:ffff:ffff CIDR 2403:ac00::/32 Network Name CERNET2-TJU6 Handle 2403:ac00::/32 Type ALLOCATED PORTABLE Country China (CN) Registry APNIC Description Tianjin University, Tianjin 300072, China Registered On Jan 11, 2010 Last Updated Sep 03, 2020 Status
active
ASN & Routing
Origin AS AS24352 AS Name CNGI-TJN-IX-AS-AP - CERNET2 IX at Tianjin University, CN Announced Prefix 2403:ac00::/32 AS Registry APNIC Prefix Country China (CN) Allocated 2010-01-12 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_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/ip/2403:ac00::",
"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/ip/2403:ac00::",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "CN",
"name": "CERNET2-TJU6",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2010-01-11T23:44:54Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-09-03T09:16:26Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/2403:ac00::",
"rel": "self",
"href": "https://rdap.apnic.net/ip/2403:ac00::/32",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Tianjin University",
"Tianjin 300072, China"
],
"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"
}
],
"entities": [
{
"roles": [
"administrative",
"technical"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:54:16Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-09-03T09:14:12Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/2403:ac00::",
"rel": "self",
"href": "https://rdap.apnic.net/entity/CER-AP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"[email protected]"
],
"title": "remarks"
}
],
"handle": "CER-AP",
"objectClassName": "entity",
"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]"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2010-11-26T03:14:01Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-09-10T07:51:56Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/2403:ac00::",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-CERNET-AP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"timezone GMT+8",
"[email protected] was validated on 2026-09-10"
],
"title": "remarks"
}
],
"handle": "IRT-CERNET-AP",
"objectClassName": "entity",
"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]"
]
]
]
}
],
"handle": "2403:ac00::/32",
"type": "ALLOCATED PORTABLE",
"startAddress": "2403:ac00::",
"endAddress": "2403:ac00:ffff:ffff:ffff:ffff:ffff:ffff",
"objectClassName": "ip network",
"ipVersion": "v6",
"cidr0_cidrs": [
{
"v6prefix": "2403:ac00::",
"length": 32
}
],
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.