Whois & RDAP Lookup
V.PS Cloud KVM VPS for developers KVM VPS · 11 PoPs · 99.9% SLA Simple VPS, premium network · Pick a PoP, deploy in seconds 11 PoPs · APAC, Europe, North America Tier 1 upstreams Premium network · Low-latency routes Free 24×7 support €6.95/mo Deploy a serverDeploy103.45.129.0/24
RDAPIP Range103.45.128.0 - 103.45.131.255
Handle103.45.128.0 - 103.45.131.255
NameJZKJ-NET
TypeALLOCATED PORTABLE
CountryCN
Registered2014-12-14 10:05 UTC
Updated2025-08-08 02:06 UTC
Admin ContactWenjun Zhang
Email[email protected]
Phone+86-010-18907197027
Address2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei
Tech ContactMeng Chu
Email[email protected]
Phone+86-010-18972177898
Address2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei
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 '103.45.128.0 - 103.45.131.255' % Abuse contact for '103.45.128.0 - 103.45.131.255' is '[email protected]' inetnum: 103.45.128.0 - 103.45.131.255 netname: JZKJ-NET descr: Juzhi technology co., ltd descr: 2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei admin-c: YW7272-AP tech-c: JS4518-AP country: CN mnt-by: MAINT-CNNIC-AP mnt-lower: MAINT-CNNIC-AP mnt-routes: MAINT-CNNIC-AP mnt-irt: IRT-JZKJ-NET-CN status: ALLOCATED PORTABLE last-modified: 2025-08-08T02:06:27Z source: APNIC irt: IRT-JZKJ-NET-CN address: 2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei admin-c: YW7272-AP tech-c: JS4518-AP e-mail: [email protected] abuse-mailbox: [email protected] auth: # Filtered mnt-by: MAINT-CNNIC-AP last-modified: 2026-07-03T01:32:47Z source: APNIC person: Meng Chu address: 2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei country: CN phone: +86-010-18972177898 e-mail: [email protected] nic-hdl: JS4518-AP mnt-by: MAINT-CNNIC-AP last-modified: 2023-01-05T05:43:26Z source: APNIC person: Wenjun Zhang address: 2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei country: CN phone: +86-010-18907197027 e-mail: [email protected] nic-hdl: YW7272-AP mnt-by: MAINT-CNNIC-AP last-modified: 2023-01-05T05:43:26Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1) % Query time: 365 msec % WHEN: Sat Sep 19 13:30:44 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 22,
"v4prefix": "103.45.128.0"
}
],
"country": "CN",
"endAddress": "103.45.131.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2023-01-05T06:21:21Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-03T01:32:47Z"
}
],
"handle": "IRT-JZKJ-NET-CN",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-JZKJ-NET-CN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.45.129.0/24"
}
],
"objectClassName": "entity",
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-JZKJ-NET-CN"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2023-01-05T05:43:26Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-01-05T05:43:26Z"
}
],
"handle": "YW7272-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/YW7272-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.45.129.0/24"
}
],
"objectClassName": "entity",
"roles": [
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Wenjun Zhang"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-010-18907197027"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2023-01-05T05:43:26Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-01-05T05:43:26Z"
}
],
"handle": "JS4518-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/JS4518-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.45.129.0/24"
}
],
"objectClassName": "entity",
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Meng Chu"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-010-18972177898"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2014-12-14T10:05:09Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-08-08T02:06:27Z"
}
],
"handle": "103.45.128.0 - 103.45.131.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/103.45.128.0/22",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/103.45.129.0/24"
}
],
"name": "JZKJ-NET",
"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/103.45.129.0/24"
}
],
"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/103.45.129.0/24"
}
],
"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": [
"Juzhi technology co., ltd",
"2210, Building G, Wuhan Siting Room, Jiangjun Road, Wuhan, Hubei"
],
"title": "description"
}
],
"startAddress": "103.45.128.0",
"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.