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172.110.223.87 has a threat confidence score of 81%. This IP address from Hong Kong (AS23470, ReliableSite.Net LLC) has been observed in 516 honeypot sessions targeting SIP protocols. First observed on March 18, 2026, most recently active March 24, 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.