73.238.235.56
Intelligence Briefing: 73.238.235.56/32
Classification: Residential Endpoint
Organization: Comcast IP Services, L.L.C. (ASN 7922)
Location: Attleboro, Massachusetts, United States
Risk Assessment: Low Risk (Score: 25)
Network Observations
The target was identified as a residential cable connection. Reverse DNS resolution confirmed the hostname `c-73-238-235-56.hsd1.nh.comcast.net`. Active scanning revealed no open ports, TLS certificates, or HTTP services. Behavioral analysis recorded no WAF violations or honeypot strikes.
Threat Indicators
The address appeared on one DNS blocklist. Internal classification systems flagged the host as "Suspicious Host," though no specific threat campaigns or known attacker affiliations were linked. No known spam sources or Tor exit nodes were detected.
Recommendation
Monitor
Severity: Low
Rationale: Low-grade risk indicators present.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Comcast IP Services, L.L.C. |
| ASN | AS7922 |
| Network Name | BOSTON-17 |
| CIDR Block | 73.238.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | c-73-238-235-56.hsd1.nh.comcast.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | c-73-238-235-56.hsd1.nh.comcast.net |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Residential |
| Service Purpose | Residential Endpoint |
| Network Tier | End-User — Residential ISP endpoint |
🔌 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 | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-06 03:03:38 UTC |
| Last Seen | 2026-09-06 03:03:38 UTC |
| Profile Built | 2026-09-06 03:13:10 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 20 |
Full dossier details are available via our API.