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45.135.194.21 was found in our database!

$ whois 45.135.194.21

country·🇩🇪 Germany

isp·Pfcloud UG (haftungsbeschrankt)

asn·AS51396

network·Standard

$ sikker risk 45.135.194.21scoring →

confidence

59%Medium

first_seen·Feb 7, 2026

last_seen·1h ago

sessions·27

events·81

$ sikker protocols 45.135.194.21

SMTP

27 / 81

$ sikker summary 45.135.194.21

45.135.194.21 has a threat confidence score of 59%. This IP address from Germany (AS51396, Pfcloud UG (haftungsbeschrankt)) has been observed in 27 honeypot sessions targeting SMTP protocols. First observed on February 7, 2026, most recently active March 25, 2026.

$ sikker primitives 45.135.194.21

smtp_rcpt_to_recipient_declaration30 smtp_rset_session_reset26 smtp_ehlo_greeting20 smtp_quit_session_termination9 smtp_data_message_submission8 smtp_mail_from_envelope_sender8 smtp_helo_greeting6

$ sikker related 45.135.194.21

🇩🇪·More threats fromGermany→AS·More threats fromPfcloud UG (haftungsbeschrankt)→SMTP·More threats targetingSMTP→{ }·Browse allAttack Patterns→

Report IP WHOIS Lookup →

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