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: Argentina

Internet Service Provider: Telecom Argentina S.A.

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
Type Details Datetime
attackspam
2019-08-23 17:17:18 unexpected disconnection while reading SMTP command from (139-55-164-181.fibertel.com.ar) [181.164.55.139]:26039 I=[10.100.18.21]:25 (error: Connection reset by peer)
2019-08-23 17:17:44 unexpected disconnection while reading SMTP command from (139-55-164-181.fibertel.com.ar) [181.164.55.139]:36679 I=[10.100.18.21]:25 (error: Connection reset by peer)
2019-08-23 17:27:22 unexpected disconnection while reading SMTP command from (139-55-164-181.fibertel.com.ar) [181.164.55.139]:6846 I=[10.100.18.21]:25 (error: Connection reset by peer)


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=181.164.55.139
2019-08-24 05:44:29
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 181.164.55.139
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 57769
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;181.164.55.139.			IN	A

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019082301 1800 900 604800 86400

;; Query time: 2 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Sat Aug 24 05:44:22 CST 2019
;; MSG SIZE  rcvd: 118
Host info
139.55.164.181.in-addr.arpa domain name pointer 139-55-164-181.fibertel.com.ar.
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

Non-authoritative answer:
139.55.164.181.in-addr.arpa	name = 139-55-164-181.fibertel.com.ar.

Authoritative answers can be found from:

Related IP info:
Related comments:
IP Type Details Datetime
200.69.65.234 attack
Oct 17 07:55:55 * sshd[10458]: Failed password for root from 200.69.65.234 port 37959 ssh2
2019-10-17 18:30:15
159.203.82.104 attackspam
Oct 17 06:10:24 localhost sshd\[28589\]: Invalid user dude from 159.203.82.104 port 56958
Oct 17 06:10:24 localhost sshd\[28589\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.203.82.104
Oct 17 06:10:26 localhost sshd\[28589\]: Failed password for invalid user dude from 159.203.82.104 port 56958 ssh2
2019-10-17 18:38:55
106.75.86.217 attackbotsspam
Oct 17 10:24:15 meumeu sshd[4179]: Failed password for root from 106.75.86.217 port 56728 ssh2
Oct 17 10:28:36 meumeu sshd[4800]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.75.86.217 
Oct 17 10:28:38 meumeu sshd[4800]: Failed password for invalid user panu from 106.75.86.217 port 56514 ssh2
...
2019-10-17 18:58:15
138.68.20.158 attackspambots
2019-08-21T14:08:14.237Z CLOSE host=138.68.20.158 port=35198 fd=6 time=680.306 bytes=1156
...
2019-10-17 18:37:21
177.232.88.199 attack
IP: 177.232.88.199
ASN: AS28537 Mexico Red de Telecomunicaciones S. de R.L. de C.V.
Port: Simple Mail Transfer 25
Found in one or more Blacklists
Date: 17/10/2019 3:47:46 AM UTC
2019-10-17 18:20:17
171.244.9.27 attackspam
Oct 17 07:49:38 dedicated sshd[7629]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=171.244.9.27  user=root
Oct 17 07:49:40 dedicated sshd[7629]: Failed password for root from 171.244.9.27 port 58512 ssh2
2019-10-17 18:53:23
108.167.131.163 attackbots
$f2bV_matches
2019-10-17 18:36:23
49.249.237.226 attackspam
Oct 16 19:09:32 php1 sshd\[24556\]: Invalid user broadcast from 49.249.237.226
Oct 16 19:09:32 php1 sshd\[24556\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.249.237.226
Oct 16 19:09:33 php1 sshd\[24556\]: Failed password for invalid user broadcast from 49.249.237.226 port 42976 ssh2
Oct 16 19:14:01 php1 sshd\[24941\]: Invalid user keypos from 49.249.237.226
Oct 16 19:14:01 php1 sshd\[24941\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.249.237.226
2019-10-17 18:50:15
94.231.166.58 attackspambots
Automatic report - Port Scan Attack
2019-10-17 18:56:51
123.231.44.71 attackspambots
2019-10-17T12:08:20.324358  sshd[13821]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.231.44.71  user=root
2019-10-17T12:08:22.094134  sshd[13821]: Failed password for root from 123.231.44.71 port 54028 ssh2
2019-10-17T12:21:45.008622  sshd[14005]: Invalid user dn from 123.231.44.71 port 35246
2019-10-17T12:21:45.022733  sshd[14005]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.231.44.71
2019-10-17T12:21:45.008622  sshd[14005]: Invalid user dn from 123.231.44.71 port 35246
2019-10-17T12:21:46.637080  sshd[14005]: Failed password for invalid user dn from 123.231.44.71 port 35246 ssh2
...
2019-10-17 18:32:14
163.172.45.139 attack
Automatic report - Banned IP Access
2019-10-17 18:27:55
51.75.165.119 attackspambots
Oct 16 18:51:52 friendsofhawaii sshd\[31610\]: Invalid user shelly from 51.75.165.119
Oct 16 18:51:52 friendsofhawaii sshd\[31610\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip119.ip-51-75-165.eu
Oct 16 18:51:54 friendsofhawaii sshd\[31610\]: Failed password for invalid user shelly from 51.75.165.119 port 55740 ssh2
Oct 16 18:55:44 friendsofhawaii sshd\[31932\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip119.ip-51-75-165.eu  user=root
Oct 16 18:55:45 friendsofhawaii sshd\[31932\]: Failed password for root from 51.75.165.119 port 38224 ssh2
2019-10-17 18:22:33
114.236.226.143 attackspam
Automatic report - Banned IP Access
2019-10-17 18:28:19
5.135.214.131 attackspam
Automatic report - SSH Brute-Force Attack
2019-10-17 18:57:32
91.98.144.187 attackspambots
Automatic report - Port Scan Attack
2019-10-17 18:26:45

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