71.58.11.6
71.58.11.6 is an IPv4 address announced by AS7922, with approximate network location Philadelphia, United States. Its reverse DNS name is c-71-58-11-6.hsd1.pa.comcast.net. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Comcast Cable Communications Holdings, Inc |
| ASN | AS7922 |
| Network Name | PA-45 |
| CIDR Block | 71.58.0.0/20 |
| RIR | ARIN |
| Network registration country | United States |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | c-71-58-11-6.hsd1.pa.comcast.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | c-71-58-11-6.hsd1.pa.comcast.net |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | End-User — Residential ISP endpoint |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS7922 |
| Network Prefix | 71.56.0.0/13 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 0% | 0 | 0 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 8% | 2 | 2 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-08 19:12:07 UTC |
| Last Seen | 2026-10-06 04:21:59 UTC |
| Profile Built | 2026-11-12 04:15:46 UTC |
| Data Freshness | Stale |
| Signal Types | 18 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 71.58.11.6
Who owns the IP address 71.58.11.6?
71.58.11.6 is registered to Comcast Cable Communications Holdings, Inc. The address falls within the 71.58.0.0/20 network block. Registration is held at ARIN.
Where is 71.58.11.6 located?
Geolocation data places 71.58.11.6 in Philadelphia, Pennsylvania, United States. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 71.58.11.6 malicious or safe?
71.58.11.6 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 71.58.11.6?
The reverse DNS (PTR) record for 71.58.11.6 is c-71-58-11-6.hsd1.pa.comcast.net. This hostname is forward-confirmed, meaning it resolves back to the same address.