66.33.23.138

Neutral Activity There is no recent abuse activity, or the IP address is whitelisted. Whitelisted Subnet

Whitelisted netblocks are typically owned by trusted entities, such as Google or Microsoft who may use them for search engine spiders. However, these same entities sometimes also provide cloud servers and mail services which are easily abused. Pay special attention when trusting or distrusting these IPs.

Abuse Confidence Score
0% Low Risk
53 reports
39 reporters · latest 5 days ago

66.33.23.138 is on our whitelist as SYN-flood protection via the subnet 66.33.23.0/24.

ISP
Railway
Usage Type
Content Delivery Network
ASN
AS400940
Domain Name
railway.com
Country
🇺🇸 United States of America
City
San Francisco, California
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Abuse Reports

Total reports
53 from 39 distinct reporters
First reported
Most recent report
Last 60 days
Top reporter locations 🇺🇸 United States of America 21 🇩🇪 Germany 9 🇫🇷 France 6
Most common categories Port Scan 42 Brute-Force 11 Hacking 11 SSH 10 Exploited Host 3
Recent reports We have received reports of abusive activity from this IP address within the last week. This IP is on our whitelist as SYN-flood protection. Shared services like this are often reported for traffic that is not abuse, so review the reports before blocking.
Reporter IoA Timestamp (UTC) Comment Categories
🇧🇷 ICS Labs
ICS Labs threat intelligence (ICS Feeds): Exploited Host. Last observed 2026-11-05 UTC.
Exploited Host
🇩🇪 phil2k
Firewall: Within 2026-11-04 06:05:10 - 2026-11-04 14:23:35 CET(+0100) identified: unallowed access from 66.33.23.138 on port 22(ssh) (1 trial) Fail2ban: Within 2026-11-04 06:05:10 - 2026-11-04 14:23:35 CET(+0100) banned: 2 times by fail2ban[firewall]
Port Scan Brute-Force SSH
🇺🇸 wbsouza
CrowdSec: infra/ssh22-probe — automated firewall drops on self-hosted IDS sensor
SSH Brute-Force
🇺🇸 NetVexor
Attack source identified and submitted via NetVexor BGP Blackhole Network
Port Scan Hacking Brute-Force
🇦🇹 urnilxfgbez
Last 24 Hours suspicious: (DPT=445|DPT=3389|DPT=22|DPT=3306|DPT=8080|DPT=23|DPT=5900|DPT=1433)
Port Scan
🇺🇸 MPL
tcp/23
Port Scan
🇺🇸 MPL
tcp/23 (3 or more attempts)
Port Scan
🇺🇸 RAP
2026-11-04 21:28:58 UTC Unauthorized activity to TCP port 23. Telnet
Port Scan
🇩🇪 Da_tschek
Port scanning
Port Scan Hacking
🇧🇷 radardatelecom
Blocked by Radar da Telecom firewall — abuseipdb
Bad Web Bot Web App Attack
🇺🇸 xmission.com
Blocked by UFW (TCP on 21) Source port: 50119 TTL: 237 Packet length: 44 TOS: 0x00 This report (for 66.33.23.138) was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter
Port Scan FTP Brute-Force Brute-Force
🇺🇸 OceanTreasure
tcp/23; Legacy Telnet remote access probe @ 2026-11-04T15:43:17Z
IoT Targeted Port Scan
🇫🇮 6kilowatti
Port Scan
🇸🇪 Peter Gabaldon
Fail2Ban Triggered By 66.33.23.138
Port Scan SSH
🇫🇷 cityhunter_rhone
Connection attempts on sensitive port(s) 22 (1) of a private server (ports closed to the public, firewall log). Mercurius-Guide automated detection.
Port Scan Hacking

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