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: None

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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.28.40
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52812
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.28.40.			IN	A

;; AUTHORITY SECTION:
.			102	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 73 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:31:14 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 40.28.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 40.28.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
49.0.64.28 attackbotsspam
Unauthorized connection attempt from IP address 49.0.64.28 on Port 445(SMB)
2020-09-13 23:14:34
112.85.42.238 attack
Sep 13 15:18:41 plex-server sshd[2303546]: Failed password for root from 112.85.42.238 port 61417 ssh2
Sep 13 15:19:52 plex-server sshd[2304052]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.238  user=root
Sep 13 15:19:53 plex-server sshd[2304052]: Failed password for root from 112.85.42.238 port 44325 ssh2
Sep 13 15:21:02 plex-server sshd[2304551]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.85.42.238  user=root
Sep 13 15:21:04 plex-server sshd[2304551]: Failed password for root from 112.85.42.238 port 13691 ssh2
...
2020-09-13 23:26:30
125.179.28.108 attackspambots
DATE:2020-09-12 18:54:13, IP:125.179.28.108, PORT:telnet Telnet brute force auth on honeypot server (epe-honey1-hq)
2020-09-13 23:39:40
190.147.165.128 attackspambots
Invalid user trainer from 190.147.165.128 port 51326
2020-09-13 23:24:06
95.152.24.115 attackspam
2020-09-12T16:55:18.042210upcloud.m0sh1x2.com sshd[5478]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=host-95-152-24-115.dsl.sura.ru  user=root
2020-09-12T16:55:20.601217upcloud.m0sh1x2.com sshd[5478]: Failed password for root from 95.152.24.115 port 49113 ssh2
2020-09-13 23:07:32
77.247.178.140 attackspam
[2020-09-13 11:08:16] NOTICE[1239][C-00003005] chan_sip.c: Call from '' (77.247.178.140:64933) to extension '011442037693601' rejected because extension not found in context 'public'.
[2020-09-13 11:08:16] SECURITY[1264] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-13T11:08:16.160-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011442037693601",SessionID="0x7f4d480d6c18",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.178.140/64933",ACLName="no_extension_match"
[2020-09-13 11:09:30] NOTICE[1239][C-00003008] chan_sip.c: Call from '' (77.247.178.140:52206) to extension '011442037693601' rejected because extension not found in context 'public'.
[2020-09-13 11:09:30] SECURITY[1264] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-09-13T11:09:30.161-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="011442037693601",SessionID="0x7f4d480961a8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/U
...
2020-09-13 23:31:04
37.98.196.42 attack
Sep 13 16:08:39 vm1 sshd[12740]: Failed password for root from 37.98.196.42 port 52922 ssh2
...
2020-09-13 23:18:14
45.84.196.236 attackspam
Sep 13 13:08:46 [host] kernel: [5661794.437657] [U
Sep 13 13:09:28 [host] kernel: [5661835.985898] [U
Sep 13 13:09:32 [host] kernel: [5661840.602936] [U
Sep 13 13:09:36 [host] kernel: [5661844.657414] [U
Sep 13 13:11:05 [host] kernel: [5661932.839219] [U
Sep 13 13:13:03 [host] kernel: [5662051.588515] [U
2020-09-13 23:20:50
197.45.63.224 attack
Brute forcing RDP port 3389
2020-09-13 23:18:45
58.33.35.82 attackspambots
2020-09-13T13:14:31.343736n23.at sshd[3725653]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=58.33.35.82  user=root
2020-09-13T13:14:33.040208n23.at sshd[3725653]: Failed password for root from 58.33.35.82 port 3238 ssh2
2020-09-13T13:18:42.781730n23.at sshd[3729187]: Invalid user dario from 58.33.35.82 port 3239
...
2020-09-13 23:33:24
59.148.136.149 attackbots
Time:     Sat Sep 12 12:58:56 2020 -0400
IP:       59.148.136.149 (HK/Hong Kong/059148136149.ctinets.com)
Failures: 5 (sshd)
Interval: 3600 seconds
Blocked:  Permanent Block [LF_SSHD]

Log entries:

Sep 12 12:58:46 pv-11-ams1 sshd[14736]: Invalid user admin from 59.148.136.149 port 48861
Sep 12 12:58:48 pv-11-ams1 sshd[14736]: Failed password for invalid user admin from 59.148.136.149 port 48861 ssh2
Sep 12 12:58:50 pv-11-ams1 sshd[14740]: Invalid user admin from 59.148.136.149 port 48937
Sep 12 12:58:53 pv-11-ams1 sshd[14740]: Failed password for invalid user admin from 59.148.136.149 port 48937 ssh2
Sep 12 12:58:55 pv-11-ams1 sshd[14743]: Invalid user admin from 59.148.136.149 port 49083
2020-09-13 23:27:40
159.65.158.30 attack
Cowrie Honeypot: 3 unauthorised SSH/Telnet login attempts between 2020-09-13T14:45:45Z and 2020-09-13T14:55:13Z
2020-09-13 23:01:24
80.82.77.139 attackspam
1600006162 - 09/13/2020 16:09:22 Host: 80.82.77.139/80.82.77.139 Port: 161 UDP Blocked
2020-09-13 23:31:55
175.24.33.201 attackbotsspam
Sep 13 17:17:50 mail sshd[11609]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=175.24.33.201
2020-09-13 23:21:11
186.226.188.138 attack
Port scan: Attack repeated for 24 hours
2020-09-13 23:32:11

Recently Reported IPs

104.21.28.44 104.21.28.61 104.21.28.65 104.18.23.193
104.21.28.84 104.21.28.75 104.21.28.188 104.21.28.222
104.21.29.106 104.21.28.54 153.128.37.194 104.21.28.81
104.21.29.124 104.21.29.17 104.21.29.104 104.18.23.195
104.21.29.204 104.21.29.123 104.21.29.18 104.21.29.188