137.164.13.11
IP address 137.164.13.11 was classified as High Risk with a reputation score of 70. Ownership records linked the address to CENIC (ASN 2152) within the 137.164.0.0/16 block in New York, US. Network probing indicated the host was firewalled with no open services detected.
Analysis concluded a critical severity recommendation to block the IP address was necessary. While the neighborhood classification was mostly clean with one threat sibling, validation checks noted a geolocation contradiction where claimed distance violated RTT physics measurements. Overall confidence remained Very Low.
Firewall rules were generated for iptables, nginx, and pf to enforce the block recommendation.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | CENIC |
| ASN | AS2152 |
| Network Name | CALREN |
| CIDR Block | 137.164.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | shacoe-gw--sha-coe-2--100g.cenic.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | shacoe-gw--sha-coe-2--100g.cenic.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | 2/2 domains |
| DMARC | 0/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ 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 | 27% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-29 23:12:04 UTC |
| Last Seen | 2026-09-23 22:55:02 UTC |
| Profile Built | 2026-09-23 23:06:55 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 28 |
Full dossier details are available via our API.