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:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.13.172
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62766
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.13.172.			IN	A

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

;; Query time: 88 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 08:30:33 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 172.13.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 172.13.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
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190.200.97.217 attack
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Unauthorised access (Jan 29) SRC=81.22.45.104 LEN=40 TTL=249 ID=20381 TCP DPT=3389 WINDOW=1024 SYN
2020-01-31 07:34:00
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Unauthorized connection attempt detected from IP address 51.178.16.227 to port 2220 [J]
2020-01-31 07:18:45

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