City: unknown
Region: unknown
Country: United States
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.
#
# start
NetRange: 21.0.0.0 - 21.255.255.255
CIDR: 21.0.0.0/8
NetName: DNIC-SNET-021
NetHandle: NET-21-0-0-0-1
Parent: ()
NetType: Direct Allocation
OriginAS:
Organization: United States Department of Defense (DoD) (USDDD)
RegDate: 1991-07-01
Updated: 2025-09-05
Ref: https://rdap.arin.net/registry/ip/21.0.0.0
OrgName: United States Department of Defense (DoD)
OrgId: USDDD
Address: 3990 E. Broad Street
City: Columbus
StateProv: OH
PostalCode: 43218
Country: US
RegDate: 2007-01-12
Updated: 2025-03-13
Ref: https://rdap.arin.net/registry/entity/USDDD
OrgAbuseHandle: MIL-HSTMST-ARIN
OrgAbuseName: Network DoD
OrgAbusePhone: +1-844-347-2457
OrgAbuseEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgAbuseRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName: Network DoD
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
OrgTechHandle: REGIS10-ARIN
OrgTechName: Registration
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/REGIS10-ARIN
OrgNOCHandle: MIL-HSTMST-ARIN
OrgNOCName: Network DoD
OrgNOCPhone: +1-844-347-2457
OrgNOCEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgNOCRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
# end
# start
NetRange: 21.0.0.0 - 21.255.255.255
CIDR: 21.0.0.0/8
NetName: DNIC-SNET-021
NetHandle: NET-21-0-0-0-2
Parent: DNIC-SNET-021 (NET-21-0-0-0-1)
NetType: Reallocated
OriginAS:
Organization: DoD Network Information Center (DNIC)
RegDate: 2025-09-05
Updated: 2025-09-05
Ref: https://rdap.arin.net/registry/ip/21.0.0.0
OrgName: DoD Network Information Center
OrgId: DNIC
Address: 3990 E. Broad Street
City: Columbus
StateProv: OH
PostalCode: 43218
Country: US
RegDate:
Updated: 2025-03-13
Ref: https://rdap.arin.net/registry/entity/DNIC
OrgAbuseHandle: REGIS10-ARIN
OrgAbuseName: Registration
OrgAbusePhone: +1-844-347-2457
OrgAbuseEmail: disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgAbuseRef: https://rdap.arin.net/registry/entity/REGIS10-ARIN
OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName: Network DoD
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN
OrgTechHandle: REGIS10-ARIN
OrgTechName: Registration
OrgTechPhone: +1-844-347-2457
OrgTechEmail: disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef: https://rdap.arin.net/registry/entity/REGIS10-ARIN
# end
#
# 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 <<>> 21.191.152.175
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 64136
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;21.191.152.175. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026042100 1800 900 604800 86400
;; Query time: 31 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Apr 21 22:39:33 CST 2026
;; MSG SIZE rcvd: 107Host 175.152.191.21.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 175.152.191.21.in-addr.arpa: NXDOMAIN| IP | Type | Details | Datetime |
|---|---|---|---|
| 113.193.226.66 | attackbots | 23/tcp 23/tcp [2020-02-16/03-05]2pkt |
2020-03-05 19:32:44 |
| 221.230.50.138 | attack | 1433/tcp 1433/tcp 1433/tcp... [2020-01-09/03-05]5pkt,1pt.(tcp) |
2020-03-05 19:33:16 |
| 125.162.60.195 | attackbots | Honeypot attack, port: 445, PTR: 195.subnet125-162-60.speedy.telkom.net.id. |
2020-03-05 19:39:22 |
| 14.21.36.84 | attackbots | Mar 4 23:26:29 eddieflores sshd\[14655\]: Invalid user csgoserver from 14.21.36.84 Mar 4 23:26:29 eddieflores sshd\[14655\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.21.36.84 Mar 4 23:26:30 eddieflores sshd\[14655\]: Failed password for invalid user csgoserver from 14.21.36.84 port 57224 ssh2 Mar 4 23:32:15 eddieflores sshd\[15115\]: Invalid user peter from 14.21.36.84 Mar 4 23:32:15 eddieflores sshd\[15115\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=14.21.36.84 |
2020-03-05 19:51:53 |
| 111.185.126.118 | attack | Honeypot attack, port: 4567, PTR: host-118.126-185-111.static.totalbb.net.tw. |
2020-03-05 19:30:39 |
| 128.199.58.60 | attackspam | xmlrpc attack |
2020-03-05 19:33:57 |
| 218.88.27.54 | attackspam | 1583398273 - 03/05/2020 09:51:13 Host: 218.88.27.54/218.88.27.54 Port: 445 TCP Blocked |
2020-03-05 19:56:22 |
| 118.69.111.122 | attackbots | Unauthorized connection attempt from IP address 118.69.111.122 on Port 445(SMB) |
2020-03-05 19:49:58 |
| 183.88.36.157 | attack | Unauthorized connection attempt from IP address 183.88.36.157 on Port 445(SMB) |
2020-03-05 20:03:41 |
| 222.186.175.167 | attackbots | Mar 5 12:18:43 eventyay sshd[11625]: Failed password for root from 222.186.175.167 port 25154 ssh2 Mar 5 12:18:56 eventyay sshd[11625]: error: maximum authentication attempts exceeded for root from 222.186.175.167 port 25154 ssh2 [preauth] Mar 5 12:19:02 eventyay sshd[11629]: Failed password for root from 222.186.175.167 port 27136 ssh2 ... |
2020-03-05 19:21:22 |
| 51.68.230.54 | attack | Detected by Fail2Ban |
2020-03-05 19:42:52 |
| 222.186.30.167 | attack | SSH brutforce |
2020-03-05 19:26:12 |
| 117.4.106.186 | attackspam | Unauthorized connection attempt from IP address 117.4.106.186 on Port 445(SMB) |
2020-03-05 20:02:15 |
| 171.236.28.185 | attackspambots | Unauthorized connection attempt from IP address 171.236.28.185 on Port 445(SMB) |
2020-03-05 19:48:19 |
| 181.40.66.61 | attackspambots | [portscan] tcp/1433 [MsSQL] *(RWIN=1024)(03051213) |
2020-03-05 19:26:42 |