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 <<>> 104.21.55.252
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 32229
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.55.252.			IN	A

;; AUTHORITY SECTION:
.			90	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:13:30 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 252.55.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 252.55.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
106.12.179.81 attack
SASL PLAIN auth failed: ruser=...
2020-01-11 04:44:25
91.214.82.49 attack
Unauthorized connection attempt detected from IP address 91.214.82.49 to port 445
2020-01-11 04:26:25
52.172.138.31 attack
Brute-force attempt banned
2020-01-11 04:21:56
212.64.57.124 attackspam
Automatic report - SSH Brute-Force Attack
2020-01-11 04:33:30
106.75.113.0 attackspam
MultiHost/MultiPort Probe, Scan, Hack -
2020-01-11 04:38:30
27.211.198.28 attackbots
Jan 10 13:51:11 debian-2gb-nbg1-2 kernel: \[919981.636122\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=27.211.198.28 DST=195.201.40.59 LEN=44 TOS=0x00 PREC=0x00 TTL=231 ID=26416 PROTO=TCP SPT=59443 DPT=1433 WINDOW=1024 RES=0x00 SYN URGP=0
2020-01-11 04:52:10
69.229.6.45 attackspambots
2020-01-10T05:51:30.083367-07:00 suse-nuc sshd[19958]: Invalid user shares from 69.229.6.45 port 32866
...
2020-01-11 04:39:16
185.236.201.132 attack
tried to login to nas
2020-01-11 04:26:54
85.115.248.1 attackspam
Jan 10 13:51:23 grey postfix/smtpd\[11958\]: NOQUEUE: reject: RCPT from unknown\[85.115.248.1\]: 554 5.7.1 Service unavailable\; Client host \[85.115.248.1\] blocked using cbl.abuseat.org\; Blocked - see http://www.abuseat.org/lookup.cgi\?ip=85.115.248.1\; from=\ to=\ proto=ESMTP helo=\<\[85.115.248.1\]\>
...
2020-01-11 04:45:06
62.86.211.49 attackspam
Unauthorized connection attempt detected from IP address 62.86.211.49 to port 80
2020-01-11 04:49:36
51.38.224.46 attack
Jan 10 19:41:10 SilenceServices sshd[19033]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.224.46
Jan 10 19:41:13 SilenceServices sshd[19033]: Failed password for invalid user ftpadmin from 51.38.224.46 port 59986 ssh2
Jan 10 19:42:45 SilenceServices sshd[20230]: Failed password for root from 51.38.224.46 port 45730 ssh2
2020-01-11 04:50:20
106.75.113.52 attackbotsspam
firewall-block, port(s): 5060/udp
2020-01-11 04:37:32
114.231.46.218 attackbotsspam
2020-01-10 06:51:35 dovecot_login authenticator failed for (blyhl) [114.231.46.218]:54443 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=lining@lerctr.org)
2020-01-10 06:51:42 dovecot_login authenticator failed for (icxcz) [114.231.46.218]:54443 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=lining@lerctr.org)
2020-01-10 06:51:54 dovecot_login authenticator failed for (zwbmc) [114.231.46.218]:54443 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=lining@lerctr.org)
...
2020-01-11 04:28:43
176.232.204.68 attackspam
Jan 10 19:08:48 unicornsoft sshd\[12505\]: Invalid user PlcmSpIp from 176.232.204.68
Jan 10 19:08:48 unicornsoft sshd\[12505\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=176.232.204.68
Jan 10 19:08:50 unicornsoft sshd\[12505\]: Failed password for invalid user PlcmSpIp from 176.232.204.68 port 62146 ssh2
2020-01-11 04:43:54
176.58.137.29 attackspambots
Fail2Ban Ban Triggered
2020-01-11 04:20:43

Recently Reported IPs

104.21.55.248 104.21.55.59 104.21.55.49 13.225.71.38
104.21.55.73 104.21.55.85 104.21.55.81 104.21.55.76
104.21.55.86 104.21.55.91 104.21.55.84 104.21.56.104
104.21.56.107 104.21.56.122 104.21.56.108 104.21.56.124
104.21.56.137 104.21.56.14 104.21.56.143 104.21.56.139