; <<>> DiG 9.11.3-1ubuntu1.5-Ubuntu <<>> -x 42.236.55.21 @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21221
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;21.55.236.42.in-addr.arpa.	IN	PTR

;; ANSWER SECTION:
21.55.236.42.in-addr.arpa. 17832 IN	PTR	hn.kd.ny.adsl.

;; Query time: 12 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Apr 22 07:12:38 PDT 2019
;; MSG SIZE  rcvd: 81

	

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

% Information related to '42.224.0.0 - 42.239.255.255'

% Abuse contact for '42.224.0.0 - 42.239.255.255' is 'hqs-ipabuse@chinaunicom.cn'

inetnum:        42.224.0.0 - 42.239.255.255
netname:        UNICOM-HA
descr:          China Unicom Henan province network
descr:          China Unicom
descr:          No.21,JiN-Rong Street,
descr:          Beijing 100033
country:        CN
admin-c:        CH1302-AP
tech-c:         WW444-AP
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP-HA
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
status:         ALLOCATED PORTABLE
last-modified:  2016-05-04T00:29:00Z
source:         APNIC

irt:            IRT-CU-CN
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
e-mail:         hqs-ipabuse@chinaunicom.cn
abuse-mailbox:  hqs-ipabuse@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
auth:           # Filtered
mnt-by:         MAINT-CNCGROUP
last-modified:  2017-10-23T05:59:13Z
source:         APNIC

person:         ChinaUnicom Hostmaster
nic-hdl:        CH1302-AP
e-mail:         hqs-ipabuse@chinaunicom.cn
address:        No.21,Jin-Rong Street
address:        Beijing,100033
address:        P.R.China
phone:          +86-10-66259764
fax-no:         +86-10-66259764
country:        CN
mnt-by:         MAINT-CNCGROUP
last-modified:  2017-08-17T06:13:16Z
source:         APNIC

person:         Wei Wang
nic-hdl:        WW444-AP
e-mail:         abuse@public.zz.ha.cn
address:        #55 San Quan Road, Zhengzhou, Henan Provice
phone:          +86-371-65952358
fax-no:         +86-371-65968952
country:        CN
mnt-by:         MAINT-CNCGROUP-HA
last-modified:  2010-03-05T08:20:01Z
source:         APNIC

% Information related to '42.224.0.0/12AS4837'

route:          42.224.0.0/12
descr:          China Unicom Henan Province Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2011-03-02T05:24:03Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)