Whois & RDAP Lookup
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IP Geolocation RDAPIP Range220.192.0.0 - 220.207.255.255
Handle220.192.0.0 - 220.207.255.255
NameUNICOM
TypeALLOCATED PORTABLE
CountryCN
Registered2008-09-04 06:52 UTC
Updated2023-11-28 00:57 UTC
Admin ContactYuzhen Zhao
Email[email protected]
Phone+86-10-66258500
AddressNo.21 Financial Street,Xicheng District,, Beijing 100140 ,P.R.China
Tech ContactYuzhen Zhao
Email[email protected]
Phone+86-10-66258500
AddressNo.21 Financial Street,Xicheng District,, Beijing 100140 ,P.R.China
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 '220.192.0.0 - 220.207.255.255' % Abuse contact for '220.192.0.0 - 220.207.255.255' is '[email protected]' inetnum: 220.192.0.0 - 220.207.255.255 netname: UNICOM descr: China Unicom descr: No.21 Financial Street,Xicheng District, descr: Beijing 100140 ,P.R.China country: CN admin-c: YW6851-AP tech-c: YW6851-AP abuse-c: AC1601-AP status: ALLOCATED PORTABLE mnt-by: MAINT-CNNIC-AP mnt-irt: IRT-UNICOM-CN mnt-lower: MAINT-CNNIC-AP mnt-routes: MAINT-CNCGROUP-RR last-modified: 2023-11-28T00:57:29Z source: APNIC irt: IRT-UNICOM-CN address: No.21 Financial Street,Xicheng District, address: Beijing 100140 ,P.R.China e-mail: [email protected] abuse-mailbox: [email protected] admin-c: YW6851-AP tech-c: YW6851-AP auth: # Filtered remarks: [email protected] was validated on 2026-05-08 mnt-by: MAINT-CNNIC-AP last-modified: 2026-05-08T01:30:43Z 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: Yuzhen Zhao address: No.21 Financial Street,Xicheng District, address: Beijing 100140 ,P.R.China country: CN phone: +86-10-66258500 fax-no: +86-10-66259626 e-mail: [email protected] e-mail: [email protected] nic-hdl: YW6851-AP mnt-by: MAINT-CNNIC-AP last-modified: 2017-09-21T03:48:02Z source: APNIC % Information related to '220.192.0.0/12AS4837' route: 220.192.0.0/12 descr: China Unicom Network country: CN origin: AS4837 mnt-by: MAINT-CNCGROUP-RR last-modified: 2011-12-13T01:08:02Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1) % Query time: 212 msec % WHEN: Wed Jul 29 00:15:21 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 12,
"v4prefix": "220.192.0.0"
}
],
"country": "CN",
"endAddress": "220.207.255.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2017-09-21T03:48:02Z"
},
{
"eventAction": "last changed",
"eventDate": "2017-09-21T03:48:02Z"
}
],
"handle": "YW6851-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/YW6851-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/220.195.204.13"
}
],
"objectClassName": "entity",
"roles": [
"technical",
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Yuzhen Zhao"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "No.21 Financial Street,Xicheng District,\nBeijing 100140 ,P.R.China"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+86-10-66258500"
],
[
"tel",
{
"type": "fax"
},
"text",
"+86-10-66259626"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2021-08-17T02:30:59Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-05-08T01:30:43Z"
}
],
"handle": "IRT-UNICOM-CN",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-UNICOM-CN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/220.195.204.13"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] was validated on 2026-05-08"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-UNICOM-CN"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "No.21 Financial Street,Xicheng District,\nBeijing 100140 ,P.R.China"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T06:52:05Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-11-28T00:57:29Z"
}
],
"handle": "220.192.0.0 - 220.207.255.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/220.192.0.0/12",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/220.195.204.13"
}
],
"name": "UNICOM",
"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/220.195.204.13"
}
],
"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/220.195.204.13"
}
],
"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 Unicom",
"No.21 Financial Street,Xicheng District,",
"Beijing 100140 ,P.R.China"
],
"title": "description"
}
],
"startAddress": "220.192.0.0",
"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.