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: California

Country: United States

Internet Service Provider: unknown

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:
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '51.54.0.0 - 51.59.255.255'

% Abuse contact for '51.54.0.0 - 51.59.255.255' is 'abuse@microsoft.com'

inetnum:        51.54.0.0 - 51.59.255.255
netname:        UK-Microsoft
country:        GB
org:            ORG-MA42-RIPE
status:         LEGACY
mnt-by:         RIPE-NCC-LEGACY-MNT
admin-c:        DH5439-RIPE
tech-c:         MRPA3-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2016-10-06T10:59:35Z
last-modified:  2024-05-08T16:24:39Z
source:         RIPE

organisation:   ORG-MA42-RIPE
org-name:       Microsoft Limited
country:        GB
reg-nr:         01624297
org-type:       LIR
descr:          Microsoft Corporation AS8075
descr:          To report suspected security issues specific to
descr:          traffic emanating from Microsoft online services,
descr:          including the distribution of malicious content
descr:          or other illicit or illegal material through a
descr:          Microsoft online service, please submit reports
descr:          to:
descr:          * https://cert.microsoft.com
descr:          For SPAM and other abuse issues, such as Microsoft
descr:          Accounts, please contact:
descr:          * abuse@microsoft.com
descr:          To report security vulnerabilities in Microsoft
descr:          products and services, please contact:
descr:          * secure@microsoft.com
descr:          For legal and law enforcement-related requests,
descr:          please contact:
descr:          * msndcc@microsoft.com
descr:          For routing, peering or DNS issues, please
descr:          contact:
descr:          * IOC@microsoft.com
address:        One Microsoft Way
address:        WA 98052
address:        Redmond
address:        UNITED STATES
phone:          +1 425 882 8080
fax-no:         +1 425 936 7329
abuse-c:        MAC274-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MICROSOFT-MAINT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MICROSOFT-MAINT
created:        2004-04-17T12:18:10Z
last-modified:  2026-05-13T07:29:58Z
source:         RIPE # Filtered

role:           Microsoft Routing, Peering, and DNS
address:        One Microsoft Way
address:        Redmond, WA 98052
nic-hdl:        MRPA3-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2014-08-26T16:25:24Z
last-modified:  2014-08-26T16:25:24Z
source:         RIPE # Filtered

person:         Divya Quamara
address:        One Microsoft Way
address:        Redmond, WA 98052
phone:          +1-425-882-8080
nic-hdl:        DH5439-RIPE
mnt-by:         MICROSOFT-MAINT
created:        2014-08-26T16:24:14Z
last-modified:  2016-02-19T07:09:41Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.124.1 (BUSA)
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 51.57.81.172
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 7904
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;51.57.81.172.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2026090102 1800 900 604800 86400

;; Query time: 7 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Sep 02 08:00:33 CST 2026
;; MSG SIZE  rcvd: 105
Host info
172.81.57.51.in-addr.arpa domain name pointer azpdwgasbeet.stretchoid.com.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
172.81.57.51.in-addr.arpa	name = azpdwgasbeet.stretchoid.com.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
119.29.144.236 attackbots
$f2bV_matches
2020-10-03 03:45:56
157.245.108.35 attack
Invalid user king from 157.245.108.35 port 33240
2020-10-03 03:33:59
118.40.248.20 attackbots
Brute-force attempt banned
2020-10-03 03:53:38
45.55.182.232 attackbotsspam
Invalid user odoo from 45.55.182.232 port 46198
2020-10-03 03:35:59
192.144.190.178 attack
2020-10-02T21:36:12.882895snf-827550 sshd[30914]: Invalid user admin from 192.144.190.178 port 50642
2020-10-02T21:36:14.474870snf-827550 sshd[30914]: Failed password for invalid user admin from 192.144.190.178 port 50642 ssh2
2020-10-02T21:39:56.426636snf-827550 sshd[30931]: Invalid user b from 192.144.190.178 port 33230
...
2020-10-03 03:33:30
125.121.170.115 attack
Oct  1 20:33:04 CT3029 sshd[7708]: Invalid user user from 125.121.170.115 port 55410
Oct  1 20:33:04 CT3029 sshd[7708]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.121.170.115
Oct  1 20:33:06 CT3029 sshd[7708]: Failed password for invalid user user from 125.121.170.115 port 55410 ssh2


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=125.121.170.115
2020-10-03 03:58:54
128.199.120.132 attackbotsspam
(sshd) Failed SSH login from 128.199.120.132 (SG/Singapore/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct  2 14:27:20 server4 sshd[13403]: Invalid user RPM from 128.199.120.132
Oct  2 14:27:20 server4 sshd[13403]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.120.132 
Oct  2 14:27:22 server4 sshd[13403]: Failed password for invalid user RPM from 128.199.120.132 port 54390 ssh2
Oct  2 14:34:14 server4 sshd[17459]: Invalid user elasticsearch from 128.199.120.132
Oct  2 14:34:14 server4 sshd[17459]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.120.132
2020-10-03 03:56:37
2.57.122.209 attack
Oct  2 19:29:29 ajax sshd[20576]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=2.57.122.209 
Oct  2 19:29:31 ajax sshd[20576]: Failed password for invalid user muie from 2.57.122.209 port 60148 ssh2
2020-10-03 04:07:20
213.158.29.179 attackbotsspam
$f2bV_matches
2020-10-03 04:09:00
177.183.214.82 attack
SCAN: Host Sweep CloudCIX Reconnaissance Scan Detected, PTR: b1b7d652.virtua.com.br.
2020-10-03 03:57:49
222.222.58.103 attackspam
20/10/1@16:41:36: FAIL: Alarm-Network address from=222.222.58.103
...
2020-10-03 03:44:41
154.221.18.237 attack
Connection to SSH Honeypot - Detected by HoneypotDB
2020-10-03 03:53:02
104.236.207.70 attackspam
Oct  2 19:25:50 staging sshd[180907]: Invalid user reach from 104.236.207.70 port 60598
Oct  2 19:25:50 staging sshd[180907]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.236.207.70 
Oct  2 19:25:50 staging sshd[180907]: Invalid user reach from 104.236.207.70 port 60598
Oct  2 19:25:52 staging sshd[180907]: Failed password for invalid user reach from 104.236.207.70 port 60598 ssh2
...
2020-10-03 03:37:13
45.141.87.6 attackbotsspam
45.141.87.6 - - [01/Oct/2020:18:28:10 -0300] "\x03" 400 226
2020-10-03 03:41:33
157.245.135.156 attackbots
Brute%20Force%20SSH
2020-10-03 03:45:09

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