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: Tangshan

Region: Hebei

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 '121.16.0.0 - 121.23.255.255'

% Abuse contact for '121.16.0.0 - 121.23.255.255' is 'hqs-ipabuse@chinaunicom.cn'

inetnum:        121.16.0.0 - 121.23.255.255
netname:        UNICOM-HE
descr:          China Unicom Hebei province network
descr:          China Unicom
country:        CN
admin-c:        CH1302-AP
tech-c:         KL984-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-HE
mnt-routes:     MAINT-CNCGROUP-RR
mnt-irt:        IRT-CU-CN
last-modified:  2023-10-21T03:33:57Z
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:         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:         Kong Lingfei
nic-hdl:        KL984-AP
e-mail:         konglf5@chinaunicom.cn
address:        45, Guang An Street, Shi Jiazhuang City, HeBei Province,050011,CN
phone:          +86-311-86681601
fax-no:         +86-311-86689210
country:        cn
mnt-by:         MAINT-CNCGROUP-HE
last-modified:  2009-02-06T02:31:32Z
source:         APNIC

% Information related to '121.16.0.0/13AS4837'

route:          121.16.0.0/13
descr:          CNC Group CHINA169 Hebei Province Network
country:        CN
origin:         AS4837
mnt-by:         MAINT-CNCGROUP-RR
last-modified:  2008-09-04T07:54:47Z
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 <<>> 121.21.140.152
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58434
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.21.140.152.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2026102200 1800 900 604800 86400

;; Query time: 32 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Oct 22 16:31:58 CST 2026
;; MSG SIZE  rcvd: 107
Host info
Host 152.140.21.121.in-addr.arpa not found: 2(SERVFAIL)
Nslookup info:
server can't find 121.21.140.152.in-addr.arpa: SERVFAIL
Related IP info:
Related comments:
IP Type Details Datetime
176.88.85.90 attack
TCP Port Scanning
2019-11-13 19:02:43
81.22.45.115 attackspambots
Nov 13 11:33:27 mc1 kernel: \[4927483.169259\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.115 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=25473 PROTO=TCP SPT=40293 DPT=1972 WINDOW=1024 RES=0x00 SYN URGP=0 
Nov 13 11:39:16 mc1 kernel: \[4927832.109983\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.115 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=243 ID=29864 PROTO=TCP SPT=40293 DPT=1291 WINDOW=1024 RES=0x00 SYN URGP=0 
Nov 13 11:39:20 mc1 kernel: \[4927835.815161\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:11:a9:7b:d2:74:7f:6e:37:e3:08:00 SRC=81.22.45.115 DST=159.69.205.51 LEN=40 TOS=0x00 PREC=0x00 TTL=244 ID=36114 PROTO=TCP SPT=40293 DPT=1624 WINDOW=1024 RES=0x00 SYN URGP=0 
...
2019-11-13 18:53:41
186.137.123.13 attackbots
Nov 13 12:51:34 hosting sshd[29661]: Invalid user varta from 186.137.123.13 port 40960
...
2019-11-13 18:59:31
190.159.145.127 attackbotsspam
TCP Port Scanning
2019-11-13 19:12:16
221.130.106.5 attackbots
221.130.106.5 was recorded 5 times by 5 hosts attempting to connect to the following ports: 53. Incident counter (4h, 24h, all-time): 5, 16, 57
2019-11-13 18:54:36
109.203.106.243 attackbots
2019-11-13T10:33:55.004688abusebot-3.cloudsearch.cf sshd\[31972\]: Invalid user samba from 109.203.106.243 port 39338
2019-11-13 18:58:41
160.238.135.168 attack
TCP Port Scanning
2019-11-13 19:18:01
123.136.176.249 attackspambots
TCP Port Scanning
2019-11-13 19:23:01
200.126.236.187 attackbots
2019-11-13T10:29:23.914897abusebot-8.cloudsearch.cf sshd\[3327\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=187-236-126-200.fibertel.com.ar  user=root
2019-11-13 19:00:58
177.20.180.26 attackbotsspam
2019-11-13 H=dynamic-177-20-180-26.egbt.net.br \[177.20.180.26\] F=\ rejected RCPT \: Mail not accepted. 177.20.180.26 is listed at a DNSBL.
2019-11-13 H=dynamic-177-20-180-26.egbt.net.br \[177.20.180.26\] F=\ rejected RCPT \: Mail not accepted. 177.20.180.26 is listed at a DNSBL.
2019-11-13 H=dynamic-177-20-180-26.egbt.net.br \[177.20.180.26\] F=\ rejected RCPT \<**REMOVED**@**REMOVED**.de\>: Mail not accepted. 177.20.180.26 is listed at a DNSBL.
2019-11-13 19:00:36
14.172.11.226 attackbotsspam
Automatic report - Port Scan Attack
2019-11-13 19:17:04
202.73.9.76 attackspam
Nov 13 07:19:05 firewall sshd[22768]: Failed password for invalid user user100 from 202.73.9.76 port 50918 ssh2
Nov 13 07:23:01 firewall sshd[22841]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.73.9.76  user=backup
Nov 13 07:23:03 firewall sshd[22841]: Failed password for backup from 202.73.9.76 port 50627 ssh2
...
2019-11-13 19:05:32
51.38.65.243 attack
Nov 13 09:50:59 SilenceServices sshd[9730]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.65.243
Nov 13 09:51:01 SilenceServices sshd[9730]: Failed password for invalid user tyna from 51.38.65.243 port 56710 ssh2
Nov 13 09:54:39 SilenceServices sshd[12038]: Failed password for root from 51.38.65.243 port 37020 ssh2
2019-11-13 19:20:38
41.204.161.217 attackbotsspam
SQL Injection Attempts
2019-11-13 19:10:03
83.15.183.137 attack
SSH Bruteforce
2019-11-13 19:13:05

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