66.175.44.21

Classification: Malicious

66.175.44.21 is a malicious IP address in Washington, US. 1,250 sightings from 5 threat sources (DDoS Attacker, HTTP Attacker), last seen 2026-11-03.

Current activity

  • Known attacker — Seen launching attacks over the Internet.

Blacklist sightings

Description Source First seen Last seen Labels MITRE ATT&CK
DDoS Attacker Blocklist.net.ua 2022-12-28 03:29:52 2026-11-03 16:29:52 attacker malicious-activity
Empty reason Blocklist.net.ua 2026-09-04 16:26:44 2026-09-11 16:25:49 attacker malicious-activity
HTTP Spammer StopForumSpam.com 2025-04-03 00:32:07 2026-04-23 14:30:27 malicious-activity
Suspicious Host AbuseIPDB 2024-08-23 01:20:46 2026-03-01 20:22:07 anomalous-activity
Malicious Host AbuseIPDB 2024-08-23 22:00:28 2026-02-22 11:06:25 compromised malicious-activity
HTTP Attacker Blocklist.de 2022-06-04 00:45:28 2026-01-25 02:16:15 malicious-activity
Bruteforce login attacker Blocklist.de 2022-06-04 00:53:33 2026-01-24 07:40:51 malicious-activity
VPN IPWhois.io 2025-04-08 00:50:50 2025-06-15 12:37:25 anonymization
HTTP Attacker AbuseIPDB 2025-01-30 02:38:35 2025-06-09 22:15:49 malicious-activity
Bruteforce AbuseIPDB 2025-01-30 02:38:35 2025-06-01 09:00:29 malicious-activity
SSH Attacker AbuseIPDB 2025-02-08 13:35:08 2025-06-01 09:00:29 malicious-activity
HTTP Scrapper AbuseIPDB 2025-02-08 13:32:22 2025-06-01 00:01:01 anomalous-activity
Hacking AbuseIPDB 2025-02-08 10:27:16 2025-05-31 10:28:22 malicious-activity
Proxy IPWhois.io 2025-05-06 16:01:07 2025-05-29 00:54:22 anonymization
Port Scanner AbuseIPDB 2025-04-12 07:35:14 2025-05-28 13:33:54 anomalous-activity
DDoS attack AbuseIPDB 2025-03-21 09:00:30 2025-05-28 07:05:26 malicious-activity
SQL Injection AbuseIPDB 2025-04-02 11:16:37 2025-04-30 08:46:20 malicious-activity
Mail Spammer AbuseIPDB 2025-04-03 02:56:57 2025-04-03 02:56:57 malicious-activity
Parasite traffic on site responsalis.eu. Blocklist.net.ua 2024-06-22 06:17:50 2024-06-22 06:17:50 malicious-activity
Parasite traffic on site viasat-ukraine.com. Blocklist.net.ua 2024-05-20 07:53:29 2024-05-20 07:53:29 malicious-activity
Parasite traffic on site marta-dent.if.ua. Blocklist.net.ua 2024-03-02 04:56:09 2024-03-02 04:56:09 malicious-activity
Parasite traffic on site omusic.com.ua. Blocklist.net.ua 2019-01-14 07:08:45 2019-01-14 07:08:45

Tags

abuse apache ddos rfi attacker login bruteforce bot joomla wordpress

Whois information

AS name
AS30447 Internet Names For Business Inc.
AS registry
arin
AS date
2001-10-03 00:00:00
AS CIDR
66.175.0.0/18
CIDR
66.175.0.0/18
Registrant
Internet Names For Business Inc.
Address
619A Kumpf Drive
City
Washington
State
DC
Postal code
20511
Country
US — United States 🇺🇸
Contact email
[email protected]
First indexed
2019-01-13 22:21:01
Last updated
2026-11-03 16:29:52

Malicious IPs in the same CIDR

66.175.44.20 66.175.44.59 66.175.44.21 66.175.44.60 66.175.44.53 66.175.44.32 66.175.44.25