157.238.231.203
Intelligence assessment for IP 157.238.231.203/32 classified the asset as Low Risk with a risk score of 25. Ownership was attributed to NTT America, Inc. (ASN 2914, 157.238.0.0/16). Network scanning detected no open ports, with the service purpose listed as Firewalled / No Services. DNS resolution pointed to ntt.net, which maintained an SPF record but lacked DMARC validation.
Threat intelligence feeds identified the IP on one of eight DNS blacklist entries. Although the address was not flagged as a known attacker or part of a specific campaign, the system labeled it a Suspicious Host. A contradiction was noted between geolocation data and RTT physics measurements. The recommendation was to Monitor the address due to signal contradictions and blacklist presence, despite the low severity rating.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | NTT America, Inc. |
| ASN | AS2914 |
| Network Name | NTTA-157-238 |
| CIDR Block | 157.238.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ae-0.armstrong.nycmny17.us.bb.gin.ntt.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ae-0.armstrong.nycmny17.us.bb.gin.ntt.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Present |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 19% | 2 | 2 |
| Overall | 21% | 10 | 14 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-06 20:53:14 UTC |
| Last Seen | 2026-09-17 03:24:57 UTC |
| Profile Built | 2026-09-17 03:37:28 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 28 |
Full dossier details are available via our API.