128.2.5.68
IP 128.2.5.68/32 was associated with Carnegie Mellon University (ASN 9, CMU-NET) in Pittsburgh, Pennsylvania. The address resolved to CORE2-BORDER-FW.GW.CMU.NET and was categorized as "Firewalled / No Services" with no open ports detected. While the reputation score remained low at 25, the host was flagged as a "Suspicious Host" with one threat observation recorded. Validation data identified a contradiction between claimed geolocation and RTT physics measurements. Current analysis recommended monitoring the asset due to signal contradictions, with no specific firewall rules required.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Carnegie Mellon University |
| ASN | AS9 |
| Network Name | CMU-NET |
| CIDR Block | 128.2.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | CORE2-BORDER-FW.GW.CMU.NET |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | CORE2-BORDER-FW.GW.CMU.NET |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | 0/2 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 | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 27% | 2 | 4 |
| Overall | 24% | 10 | 17 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-29 09:50:44 UTC |
| Last Seen | 2026-09-22 11:54:59 UTC |
| Profile Built | 2026-09-22 12:05:47 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 36 |
Full dossier details are available via our API.