Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: China

Internet Service Provider: China Unicom

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '42.56.0.0 - 42.59.255.255'

% Abuse contact for '42.56.0.0 - 42.59.255.255' is 'hqs-ipabuse@chinaunicom.cn'

inetnum:        42.56.0.0 - 42.59.255.255
netname:        UNICOM-LN
descr:          UNICOM Liaoning Province Network
descr:          China Unicom
descr:          No.21, Jin-Rong Street
descr:          Beijing 100033
country:        CN
admin-c:        CH444-AP
tech-c:         ZB17-AP
abuse-c:        AC1718-AP
status:         ALLOCATED PORTABLE
remarks:        service provider
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:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNCGROUP
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2025-01-22T13:07:44Z
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
remarks:        hqs-ipabuse@chinaunicom.cn was validated on 2026-08-19
mnt-by:         MAINT-CNCGROUP
last-modified:  2026-08-19T00:57:22Z
source:         APNIC

role:           ABUSE CUCN
country:        ZZ
address:        No.21,Financial Street
address:        Beijing,100033
address:        P.R.China
phone:          +000000000
e-mail:         hqs-ipabuse@chinaunicom.cn
admin-c:        CH1302-AP
tech-c:         CH1302-AP
nic-hdl:        AC1718-AP
remarks:        Generated from irt object IRT-CU-CN
remarks:        hqs-ipabuse@chinaunicom.cn was validated on 2026-08-19
abuse-mailbox:  hqs-ipabuse@chinaunicom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-20T03:22:23Z
source:         APNIC

person:         CNCGroup Hostmaster
nic-hdl:        CH444-AP
e-mail:         hqs-ipabuse@chinaunicom.cn
address:        No.21,Financial Street
address:        Beijing,100033,P.R.China
phone:          +86-10-66259764
fax-no:         +86-10-66259764
country:        CN
mnt-by:         MAINT-CN-CUCGROUP
last-modified:  2017-09-05T06:36:14Z
source:         APNIC

person:         ZHAO BO
address:        96,JieFang Road ChangChun 130021 China.
country:        CN
phone:          +86-431-8925217
fax-no:         +86-431-8925190
e-mail:         wtg@mail.jl.cn
nic-hdl:        ZB17-AP
mnt-by:         MAINT-CHINANET-JL
last-modified:  2008-09-04T07:30:04Z
source:         APNIC

% Information related to '42.56.0.0/14AS4837'

route:          42.56.0.0/14
descr:          China Unicom Liaoning Province Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2011-03-02T05:24:02Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 42.57.113.17
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40824
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;42.57.113.17.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2026090600 1800 900 604800 86400

;; Query time: 8 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Sep 06 19:01:32 CST 2026
;; MSG SIZE  rcvd: 105
Host info
Host 17.113.57.42.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 17.113.57.42.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
45.133.99.12 attack
Mar 20 10:27:07 mail postfix/smtpd\[2536\]: warning: unknown\[45.133.99.12\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Mar 20 10:27:26 mail postfix/smtpd\[2549\]: warning: unknown\[45.133.99.12\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Mar 20 11:21:11 mail postfix/smtpd\[3734\]: warning: unknown\[45.133.99.12\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Mar 20 11:21:30 mail postfix/smtpd\[3873\]: warning: unknown\[45.133.99.12\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
2020-03-20 18:29:27
113.141.166.197 attackspam
$f2bV_matches
2020-03-20 18:31:58
134.73.51.149 attackspambots
Mar 20 06:00:12 mail.srvfarm.net postfix/smtpd[2607471]: NOQUEUE: reject: RCPT from unknown[134.73.51.149]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 20 06:00:12 mail.srvfarm.net postfix/smtpd[2602535]: NOQUEUE: reject: RCPT from unknown[134.73.51.149]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 20 06:00:12 mail.srvfarm.net postfix/smtpd[2607110]: NOQUEUE: reject: RCPT from unknown[134.73.51.149]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 20 06:00:12 mail.srvfarm.net postfix/smtpd[2607268]: NOQUEUE: reject: RCPT from unknown[134.73.51.149]: 450 4.1.8 : Sender addr
2020-03-20 18:38:14
217.112.142.112 attackbotsspam
Mar 20 05:32:17 mail.srvfarm.net postfix/smtpd[2603002]: NOQUEUE: reject: RCPT from unknown[217.112.142.112]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 20 05:32:19 mail.srvfarm.net postfix/smtpd[2588045]: NOQUEUE: reject: RCPT from unknown[217.112.142.112]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 20 05:36:38 mail.srvfarm.net postfix/smtpd[2603280]: NOQUEUE: reject: RCPT from unknown[217.112.142.112]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar 20 05:36:38 mail.srvfarm.net postfix/sm
2020-03-20 18:43:51
107.174.24.4 attackbots
Unauthorized connection attempt detected from IP address 107.174.24.4 to port 22
2020-03-20 18:50:45
58.242.164.10 attackbots
(imapd) Failed IMAP login from 58.242.164.10 (CN/China/-): 1 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_TRIGGER; Logs: Mar 20 07:22:47 ir1 dovecot[4133960]: imap-login: Disconnected (auth failed, 1 attempts in 6 secs): user=, method=PLAIN, rip=58.242.164.10, lip=5.63.12.44, TLS: Connection closed, session=
2020-03-20 18:43:35
47.75.74.254 attackbotsspam
$f2bV_matches
2020-03-20 18:25:53
182.61.3.157 attackspam
Repeated brute force against a port
2020-03-20 19:03:28
85.202.48.66 attack
Automatic report - Port Scan Attack
2020-03-20 18:42:28
140.143.206.106 attackspam
$f2bV_matches
2020-03-20 18:59:16
185.107.47.215 attackspam
NL_MNT-NFORCE_<177>1584692469 [1:2522038:4007] ET TOR Known Tor Relay/Router (Not Exit) Node TCP Traffic group 39 [Classification: Misc Attack] [Priority: 2]:  {TCP} 185.107.47.215:30482
2020-03-20 18:31:40
185.153.196.3 attackbots
Portscan or hack attempt detected by psad/fwsnort
2020-03-20 18:40:33
66.70.130.155 attackspam
Invalid user deploy from 66.70.130.155 port 51390
2020-03-20 19:05:13
112.21.191.54 attackspam
Mar 20 11:46:22 markkoudstaal sshd[6642]: Failed password for root from 112.21.191.54 port 58381 ssh2
Mar 20 11:51:01 markkoudstaal sshd[7251]: Failed password for root from 112.21.191.54 port 47001 ssh2
2020-03-20 19:10:01
170.130.187.10 attackbotsspam
" "
2020-03-20 19:06:28

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