103.203.56.3 - IP Reputation | SikkerAPI

sikkerapi@prod ~$

Sikker-CLI SikkerGuard

Honeypot Database Email Lookup Username Lookup Detection Catalog Subnet Calculator Encoder / Decoder

|

Fail2Ban CSF Firewall Nginx iptables / ipset

|

Overview IP Check Blacklist Report Bulk Report TAXII Feed Sikker-CLI Confidence Score Algorithm

Top Countries Top ASNs Top Protocols Top IPs SMTP Database

CIDR Range Alerts IP Alerts Username Alerts Email Alerts Blacklist Web-UI Install SikkerGuard

Looking up IP

SikkerAPI

Open source threat intelligence from a global honeypot sensor network. Real attacker behavior, not purchased feeds.

Product

Pricing Documentation Report an IP Threat Map System Status

Resources

Blog FAQ About Contact Comparisons

Tools

Sikker-CLI SikkerGuard Detection Catalog Session Database TAXII Feed

Browse

Top Countries Top ASNs Top Protocols Top IPs SMTP Wall of Fame

© 2026 SikkerAPI

Terms Privacy Remove Me

103.203.56.3 - IP Reputation | SikkerAPI

Check an IP Address, Domain Name, Subnet, or ASN

>_

Looking up 103.203.56.3...