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89.163.146.64 has a threat confidence score of 86%. This IP address from Germany (AS24961, WIIT AG) has been observed in 291 honeypot sessions targeting SIP protocols. First observed on March 4, 2026, most recently active March 5, 2026.
Identifies SIP scanning or probing activity where an attacker sends INVITE requests directly to a target IP address using randomly generated Call-ID tokens. This pattern is commonly associated with VoIP reconnaissance, SIP endpoint discovery, and automated dialer or PBX attack tooling attempting to enumerate reachable SIP services.