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WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.

Query
223.5.5.31
IANA
whois.iana.org
Referred
whois.apnic.net
WHOIS servers can rate limit. Results are cached for performance.
### IANA response (whois.iana.org)

% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

refer:        whois.apnic.net

inetnum:      223.0.0.0 - 223.255.255.255
organisation: APNIC
status:       ALLOCATED

whois:        whois.apnic.net

changed:      2010-04
source:       IANA

### Registry response (whois.apnic.net)

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '223.4.0.0 - 223.7.255.255'

% Abuse contact for '223.4.0.0 - 223.7.255.255' is 'didong.jc@alibaba-inc.com'

inetnum:        223.4.0.0 - 223.7.255.255
netname:        ALISOFT
descr:          Aliyun Computing Co., LTD
descr:          5F, Builing D, the West Lake International Plaza of S&T
descr:          No.391 Wen'er Road, Hangzhou, Zhejiang, China, 310099
country:        CN
admin-c:        ZM1015-AP
tech-c:         ZM877-AP
tech-c:         ZM876-AP
tech-c:         ZM875-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-ALISOFT-CN
last-modified:  2023-11-28T00:57:30Z
source:         APNIC

irt:            IRT-ALISOFT-CN
address:        No.391 Wen'er Road, Hangzhou, Zhejiang, China, 310099
e-mail:         didong.jc@alibaba-inc.com
abuse-mailbox:  didong.jc@alibaba-inc.com
admin-c:        ZM877-AP
tech-c:         ZM877-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:35:07Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Li Jia
address:        NO.969 West Wen Yi Road, Yu Hang District, Hangzhou
country:        CN
phone:          +86-0571-85022088
e-mail:         jiali.jl@alibaba-inc.com
nic-hdl:        ZM1015-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-07-01T07:12:42Z
source:         APNIC

person:         Guoxin Gao
address:        5F, Builing D, the West Lake International Plaza of S&T
address:        No.391 Wen'er Road, Hangzhou City
address:        Zhejiang, China, 310099
country:        CN
phone:          +86-0571-85022600
fax-no:         +86-0571-85022600
e-mail:         anti-spam@list.alibaba-inc.com
nic-hdl:        ZM875-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2014-07-30T01:56:01Z
source:         APNIC

person:         security trouble
e-mail:         abuse@alibaba-inc.com
address:        5th,floor,Building D,the West Lake International Plaza of S&T,391#Wen??r Road
address:        Hangzhou, Zhejiang, China
phone:          +86-0571-85022600
country:        CN
mnt-by:         MAINT-CNNIC-AP
nic-hdl:        ZM876-AP
last-modified:  2025-07-01T07:06:11Z
source:         APNIC

person:         Guowei Pan
address:        5F, Builing D, the West Lake International Plaza of S&T
address:        No.391 Wen'er Road, Hangzhou City
address:        Zhejiang, China, 310099
country:        CN
phone:          +86-0571-85022088-30763
fax-no:         +86-0571-85022600
e-mail:         abuse@alibaba-inc.com
nic-hdl:        ZM877-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-07-01T07:05:46Z
source:         APNIC

% Information related to '223.4.0.0/14AS37963'

route:          223.4.0.0/14
descr:          Hangzhou Alibaba Advertising Co.,Ltd.
country:        CN
origin:         AS37963
mnt-by:         MAINT-CNNIC-AP
last-modified:  2019-08-06T02:28:03Z
source:         APNIC

% Information related to '223.4.0.0/14AS45102'

route:          223.4.0.0/14
descr:          Alibaba (US) Technology Co., Ltd.
country:        CN
origin:         AS45102
mnt-by:         MAINT-CNNIC-AP
last-modified:  2019-08-06T02:28:03Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)

Frequently Asked Questions

What is WHOIS?

WHOIS is a protocol that queries databases to find the registered owner of a domain name or IP address. It reveals the registrar, registration dates, nameservers, and contact information associated with a domain or IP block.

Is WHOIS data always accurate?

Not always. Many domain registrars offer WHOIS privacy protection that replaces the registrant's personal details with proxy information. IP WHOIS data from Regional Internet Registries (RIRs) is generally more reliable than domain WHOIS data.

Can I use WHOIS to find who owns an IP address?

Yes. Enter any IP address into the WHOIS tool to find the organization that owns the IP block, the Regional Internet Registry (ARIN, RIPE, APNIC, etc.) that allocated it, and the network range it belongs to.

What is the difference between domain WHOIS and IP WHOIS?

Domain WHOIS shows registration details like the registrar, creation date, expiry date, and nameservers. IP WHOIS shows the network allocation, the organization that owns the IP block, and the abuse contact for reporting issues.

Why does WHOIS show privacy protection instead of real details?

Domain registrars offer WHOIS privacy services to protect registrants from spam, identity theft, and unwanted contact. GDPR regulations in Europe also require redaction of personal data from WHOIS records.

How often is WHOIS data updated?

WHOIS data is updated by the registrar or registry whenever changes are made to a domain or IP registration. Our tool queries the authoritative WHOIS server in real-time, with results cached for 7 days to reduce server load.

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