99.38.21.52
IP Intelligence Briefing: 99.38.21.52
Date: 2026-06-06
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership:
- ISP: AT&T Enterprises, LLC (ASN 7018)
- Geolocation: Mobile, Alabama, US (Mobile Carrier: AT&T)
- Network Type: Residential (Mobile LTE/5G)
- Threat Indicators:
- No malicious activity detected (no blacklists, campaigns, or DNS abuse).
- DNSSEC Valid: Yes.
- BGP Stability: Route instability detected (score 0.13).
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**2. Observation History**
- Latest Activity:
- Date: 2026-06-06
- Type: Residential (confidence 0.40).
- Subnet: 99.32.0.0/12 (AT&T infrastructure).
- Historical Trends:
- 19 observations over 2 days (June 4–6).
- No persistent malicious behavior (threat persistence: 0 days).
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**3. Relationships & Network Context**
- Linked Entities:
- Subnet: SBCIS-SBIS (AT&T-owned, ARIN-regulated).
- No direct ties to known malicious organizations or campaigns.
- Subnet Analysis:
- 99.38.21.52/24: Abuse density score 1 (mostly clean).
- No neighboring IPs found (zero siblings in subnet).
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**4. Recommendations**
- Monitoring:
- Track for unexpected geolocation changes or BGP route stability improvements.
- Monitor DNSSEC compliance and subnet abuse density.
- Mitigation:
- No immediate firewall rules required (low risk).
- Consider isolating mobile/residential traffic if sensitive services are exposed.
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Conclusion:
99.38.21.52 is a residential mobile IP owned by AT&T in Mobile, Alabama. No malicious indicators detected, but BGP instability and low subnet abuse density warrant cautious monitoring. No action required at this time.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | AT&T Enterprises, LLC |
| ASN | AS7018 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| 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 | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Residential |
| Service Purpose | Residential Endpoint |
| Network Tier | End-User — Residential ISP endpoint |
🔌 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% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 27% | 2 | 3 |
| Overall | 20% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-10 22:18:11 UTC |
| Last Seen | 2026-06-26 06:12:30 UTC |
| Profile Built | 2026-06-26 06:22:24 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 19 |
Full dossier details are available via our API.