141.101.73.161
The IP address 141.101.73.161 was identified as Cloudflare infrastructure (ASN 13335) within the 141.101.73.0/24 block. The endpoint functioned as a CDN with no open ports and a firewalled service status. Risk assessment returned a Low Risk score of 25, with zero known attacker indicators and zero spam source flags, though one DNSBL listing was detected among eight total lists.
Geolocation data placed the address in Chicago, IL, US. This placement contradicted RTT physics measurements, which recorded a minimum possible RTT of 134.2 ms for a 6,707.5 km distance, while observed RTT was 35.0 ms. The system classified the IP as a Suspicious Host despite zero honeypot hits and zero total incidents. Attribution confidence remained low at 35% due to missing RPKI and IRR matches.
Data confidence was rated Very Low (0.1667) with four of six dimensions covered. The recommendation for the SOC was to Monitor the address for changes due to signal contradictions. Observations were recorded as live on 2026-09-09.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Cloudflare Abuse Contact |
| ASN | AS13335 |
| Network Name | CLOUDFLARENET-EU |
| CIDR Block | 141.101.73.0/24 |
| RIR | RIPE |
| Country | US |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 21% | 10 | 14 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-09 10:40:06 UTC |
| Last Seen | 2026-09-20 01:22:03 UTC |
| Profile Built | 2026-09-23 05:37:55 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 28 |
Full dossier details are available via our API.