High Risk
31.70.86.134 is a high-risk address associated with VoIP fraud activity, registered in Germany and operated through IONOS SE (AS8560). With 1,308 total reports and an activity frequency rating of 8/10, this IP demonstrates persistent malicious behavior across a three-month window from May to July 2026, generating abuse reports at a pace that warrants immediate defensive action.
The volume of reports against 31.70.86.134 substantially exceeds typical background noise levels, with detection confirmed by 20 independent automated honeypot sensors providing a 91% confidence rating. The concentration of recent reports centers on VoIP fraud, a category that accounted for the dominant share of threat classifications in the latest reporting period. The IP's placement within IONOS SE's infrastructure is notable, as this provider serves a broad customer base, meaning the malicious traffic may originate from compromised endpoints rather than intentionally provisioned attack infrastructure. The sustained three-month reporting window indicates persistent rather than opportunistic activity.
Fraud VoIP encompasses the exploitation of telephone systems to generate unauthorized calls, typically directed toward premium-rate or international numbers for direct financial profit. For organizations running exposed SIP (Session Initiation Protocol) services, this threat translates to unauthorized toll fraud, inflated telephony bills, and potential regulatory compliance issues. The consistent reporting of this category against 31.70.86.134 suggests systematic scanning or probing of VoIP infrastructure, attempting to identify and exploit misconfigured or vulnerable phone systems.
Site operators should block 31.70.86.134 at the network perimeter, restrict SIP endpoint exposure to internal networks or VPN-only access, and implement strong authentication mechanisms such as certificate-based authentication for all voice services. Monitoring call detail records for anomalous destination patterns and implementing rate-limiting on authentication attempts will further reduce exposure to this threat category.
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