104.171.28.29 is an IPv4 address operated by Dot Holding, Inc. (AS7029), geolocated to New York, United States. Its reverse DNS name is prd-bd-UQFJ0C.fastemailclean.com. As of October 7, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
# IP INTELLIGENCE BRIEFING: 104.171.28.29/32
## EXECUTIVE SUMMARY
IP 104.171.28.29 is classified as LOW RISK with a risk score of 0. The address belongs to Dot Holding, Inc. (NET-NETWORK) and is geolocated to New York, US. No active threat indicators, open services, or malicious behavior have been observed.
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## OWNERSHIP & NETWORK CLASSIFICATION
- Organization: Dot Holding, Inc.
- Network Name: DOT-NETWORK
- CIDR Block: 104.171.16.0/20
- RIR: ARIN
- Abuse Contact: abuse@dotology.com
- Registration: Available via RDAP
- Classification: Infrastructure/Firewalling (no services detected)
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## GEOLOCATION DATA
- Country: United States (US)
- Region: US-NY
- City: New York
- Timezone: America/New_York
- Geo Sources: 1 source confirming location
- Geo Consensus: True
- Traceroute: 30 hops, 18 timed out, transit through Comcast network
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## THREAT INTELLIGENCE
Current Threat Status: CLEAN
| Indicator | Status |
|---|---|
| Known Attacker | No |
| Spam Source | No |
| Tor Exit Node | No |
| Blacklist Count | 0 |
| Abuse Confidence Score | N/A |
| Threat Feeds | None detected |
| Known Campaigns | None |
Behavioral Analysis:
- No honeypot hits
- No enumeration strikes
- No WAF violations
- Total incidents: 0
- Auto-banned: No
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## NETWORK SERVICES & DNS
Open Ports: None detected
TLS Certificate: None
HTTP Title: None
Forward DNS Resolution: Not confirmed
PTR Hostnames: None
Hosted Domains: 0
Email Reputation:
- Has SPF: No
- Has DMARC: No
- TXT Record Count: 0
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## SIGNAL OBSERVATION HISTORY
Total Observations: 7 signals recorded
Recent Activity:
- 2026-07-17 23:50:21 — Geolocation signal (US, 70% confidence)
- 2026-07-17 23:49:39 — Operator score (minimal, 30% confidence)
- 2026-07-17 23:49:35 — Ownership signal (Dot Holding, Inc., 95% confidence)
- 2026-07-17 23:49:35 — Network registration signal (104.171.16.0/20, ARIN)
Temporal Analysis:
- Ownership changes: 0
- Threat persistence days: 0
- Threat observation count: 0
- Persistently malicious: No
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## NETWORK NEIGHBORHOOD ANALYSIS (104.171.28.0/24)
Subnet Risk Profile:
- Total Siblings: 32
- Abuse Density: 0
- Subnet Classification: Low/Medium mix
Risk Distribution:
- High Risk (60-100): 0 IPs
- Medium Risk (25-59): 6 IPs
- Low Risk (0-24): 17 IPs
Elevated-Risk Neighbors:
- 104.171.28.127 — Risk Score: 65
- 104.171.28.114, 104.171.28.151 — Risk Score: 25
- Multiple IPs with Risk Score: 40
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## RELATIONSHIP GRAPH
Identified Relationships: 1
- Same Network: DOT-NETWORK (network-level relationship)
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## SECURITY RECOMMENDATIONS
Current Risk Level: LOW
Recommended Actions: No immediate action required based on current risk profile.
Firewall Rules: None recommended
Contextual Notes:
- The IP shows no active malicious indicators
- No open services detected (firewalled/no services)
- Neighborhood contains some elevated-risk siblings, but target IP remains clean
- Standard monitoring and logging recommended as best practice
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## INTELLIGENCE CONCLUSION
IP 104.171.28.29 presents a LOW RISK profile with no observable malicious behavior. The address is assigned to Dot Holding, Inc. infrastructure and appears to be firewalling or administrative infrastructure with no exposed services. While the /24 subnet contains 6 medium-risk neighbors, the target IP itself maintains a risk score of 0 with zero blacklist associations. Standard defensive monitoring is recommended; no immediate blocking or alerting actions are warranted.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dot Holding, Inc. |
| ASN | AS7029 |
| Network Name | DOT-NETWORK |
| CIDR Block | 104.171.16.0/20 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | prd-bd-UQFJ0C.fastemailclean.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | prd-bd-UQFJ0C.fastemailclean.com |
🔐 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS7029 |
| Network Prefix | 104.171.28.0/22 |
| 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 | 0% | 0 | 0 |
| services | 0% | 0 | 0 |
| ownership | 25% | 1 | 2 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 4% | 1 | 2 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-06-07 19:57:41 UTC |
| Last Seen | 2026-10-11 10:40:24 UTC |
| Profile Built | 2026-10-07 09:19:14 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 104.171.28.29
Who owns the IP address 104.171.28.29?
104.171.28.29 is registered to Dot Holding, Inc.. The address falls within the 104.171.16.0/20 network block. Registration is held at ARIN.
Where is 104.171.28.29 located?
Geolocation data places 104.171.28.29 in New York, US-NY, United States. The local time zone is America/New_York. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 104.171.28.29 malicious or safe?
104.171.28.29 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 104.171.28.29?
The reverse DNS (PTR) record for 104.171.28.29 is prd-bd-UQFJ0C.fastemailclean.com. This hostname is forward-confirmed, meaning it resolves back to the same address.