City: unknown
Region: unknown
Country: IANA Special-Purpose Address
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
NetRange: 172.16.0.0 - 172.31.255.255
CIDR: 172.16.0.0/12
NetName: PRIVATE-ADDRESS-BBLK-RFC1918-IANA-RESERVED
NetHandle: NET-172-16-0-0-1
Parent: NET172 (NET-172-0-0-0-0)
NetType: IANA Special Use
OriginAS:
Organization: Internet Assigned Numbers Authority (IANA)
RegDate: 1994-03-15
Updated: 2024-05-24
Comment: These addresses are in use by many millions of independently operated networks, which might be as small as a single computer connected to a home gateway, and are automatically configured in hundreds of millions of devices. They are only intended for use within a private context and traffic that needs to cross the Internet will need to use a different, unique address.
Comment:
Comment: These addresses can be used by anyone without any need to coordinate with IANA or an Internet registry. The traffic from these addresses does not come from ICANN or IANA. We are not the source of activity you may see on logs or in e-mail records. Please refer to http://www.iana.org/abuse/answers
Comment:
Comment: These addresses were assigned by the IETF, the organization that develops Internet protocols, in the Best Current Practice document, RFC 1918 which can be found at:
Comment: http://datatracker.ietf.org/doc/rfc1918
Ref: https://rdap.arin.net/registry/ip/172.16.0.0
OrgName: Internet Assigned Numbers Authority
OrgId: IANA
Address: 12025 Waterfront Drive
Address: Suite 300
City: Los Angeles
StateProv: CA
PostalCode: 90292
Country: US
RegDate:
Updated: 2024-05-24
Ref: https://rdap.arin.net/registry/entity/IANA
OrgTechHandle: IANA-IP-ARIN
OrgTechName: ICANN
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org
OrgTechRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: ICANN
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#; <<>> DiG 9.10.3-P4-Ubuntu <<>> 172.21.183.31
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 17501
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;172.21.183.31. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026062402 1800 900 604800 86400
;; Query time: 11 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Jun 25 09:25:52 CST 2026
;; MSG SIZE rcvd: 106Host 31.183.21.172.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 31.183.21.172.in-addr.arpa: NXDOMAIN| IP | Type | Details | Datetime |
|---|---|---|---|
| 1.214.215.236 | attackspam | Invalid user server from 1.214.215.236 port 37780 |
2020-01-19 01:28:06 |
| 106.13.105.88 | attack | Invalid user abc from 106.13.105.88 port 41984 |
2020-01-19 01:53:48 |
| 106.13.173.161 | attackspam | SSHD brute force attack detected by fail2ban |
2020-01-19 01:53:23 |
| 140.143.222.95 | attackspam | Invalid user zy from 140.143.222.95 port 35292 |
2020-01-19 01:43:16 |
| 211.198.87.98 | attackbotsspam | Unauthorized connection attempt detected from IP address 211.198.87.98 to port 2220 [J] |
2020-01-19 01:29:38 |
| 183.47.14.74 | attackbotsspam | Autoban 183.47.14.74 CONNECT/AUTH |
2020-01-19 01:36:53 |
| 183.89.215.60 | attackbots | Invalid user admin from 183.89.215.60 port 47554 |
2020-01-19 01:36:34 |
| 113.173.94.217 | attackbots | Invalid user admin from 113.173.94.217 port 53375 |
2020-01-19 01:51:08 |
| 103.221.244.160 | attack | $f2bV_matches |
2020-01-19 01:55:47 |
| 187.38.199.34 | attackbots | Unauthorized connection attempt detected from IP address 187.38.199.34 to port 2220 [J] |
2020-01-19 01:35:50 |
| 188.131.238.91 | attackbotsspam | Unauthorized connection attempt detected from IP address 188.131.238.91 to port 2220 [J] |
2020-01-19 01:34:49 |
| 182.61.176.220 | attackbots | Unauthorized connection attempt detected from IP address 182.61.176.220 to port 2220 [J] |
2020-01-19 01:37:47 |
| 49.232.97.184 | attackspambots | Autoban 49.232.97.184 CONNECT/AUTH |
2020-01-19 01:22:34 |
| 118.89.237.20 | attackbots | Invalid user designer from 118.89.237.20 port 55388 |
2020-01-19 01:48:58 |
| 69.229.6.43 | attackspambots | Unauthorized connection attempt detected from IP address 69.229.6.43 to port 2220 [J] |
2020-01-19 01:59:44 |