172.56.220.51
Intelligence records classified IP address 172.56.220.51/32 as low risk with a risk score of 25. Attribution assigned the address to T-Mobile USA, Inc. (ASN 21928) within the 172.32.0.0/11 block, geolocated to Philadelphia, United States. Network role assessment identified the infrastructure as mobile carrier with no open services or ports active. Control plane analysis detected one DNSBL listing among eight evaluated lists, though general threat indicators remained empty. Neighborhood data for subnet 172.56.220.51/24 showed a mostly_clean classification with an abuse density of 0.5 and two threat siblings among four active siblings. No known campaigns or active attacker associations were found. Operational guidance recommended monitoring the address with low severity, citing the clean neighborhood context.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | T-Mobile USA, Inc. |
| ASN | AS21928 |
| Network Name | TMO9 |
| CIDR Block | 172.32.0.0/11 |
| RIR | ARIN |
| Country | United States |
| 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 | Mobile |
| 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 | 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 | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-11 00:06:02 UTC |
| Last Seen | 2026-09-11 00:06:02 UTC |
| Profile Built | 2026-09-11 00:22:12 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 17 |
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