166.186.196.81
🏢 Ownership & Registration
| Organization | AT&T Enterprises, LLC |
| ASN | AS20057 |
| Network Name | AEL-360 |
| CIDR Block | 166.183.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | mobile-166-186-196-81.mycingular.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | mobile-166-186-196-81.mycingular.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Web Server |
| Network Tier | End-User — Residential ISP endpoint |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 3389, 8080, 8443 (3 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
CN=moxa.com, OU=SYS Department, O=MOXA, L=Taipei, S=Taiwan R.O.C, C=TW was found on this IP. This may indicate a previously hosted website, a decommissioned service, or stale infrastructure.| SANs | None |
| Valid From | 2019-08-26T03:50:29+00:00 |
| Valid Until | 2020-08-25T03:50:29+00:00 (expired) |
| TLS Protocol | Tls12 |
| Cipher Suite | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 365 days |
🛡️ Public Network Snapshot
| Origin ASN | AS20057 |
| Network Prefix | 166.186.196.0/23 |
| Route mapping | Found |
| HSTS | Enabled |
| CSP | Not detected |
| HTTP/2 | Not detected |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 23% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 17% | 2 | 3 |
| ownership | 17% | 2 | 3 |
| reputation | 8% | 1 | 2 |
| geolocation | 23% | 2 | 2 |
| Overall | 16% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-18 05:29:44 UTC |
| Last Seen | 2026-09-20 07:58:35 UTC |
| Profile Built | 2026-08-31 15:09:10 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 28 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 166.186.196.81
Who owns the IP address 166.186.196.81?
166.186.196.81 is registered to AT&T Enterprises, LLC. The address falls within the 166.183.0.0/16 network block. Registration is held at ARIN.
Where is 166.186.196.81 located?
Geolocation data places 166.186.196.81 in Taipei, Taiwan R.O.C, Taiwan. The local time zone is Asia/Taipei. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 166.186.196.81 malicious or safe?
166.186.196.81 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 166.186.196.81?
The reverse DNS (PTR) record for 166.186.196.81 is mobile-166-186-196-81.mycingular.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 166.186.196.81?
Responsive ports observed on 166.186.196.81 include 80, 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 166.186.196.81 a VPN, proxy, or data center address?
166.186.196.81 is classified as a mobile network based on network ownership and behavioural analysis.