166.140.234.203 is an IPv4 address operated by CELLCO-PART - Verizon Business, US (AS6167), with approximate network location Chino Hills, United States. It belongs to a mobile network. As of November 14, 2026, IPDebrief rates it Low Risk (30/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Verizon Business |
| ASN | AS6167 |
| Network Name | MCICS |
| CIDR Block | 166.139.0.0/16 |
| RIR | ARIN |
| Network registration country | United States |
| Routing operator | CELLCO-PART - Verizon Business, US |
| 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 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.
| caa | Not checked |
| spf | Not checked |
| dmarc | Not checked |
| dnssec | Not checked |
| fcrDns | Not checked |
☁️ Network Classification
| Infrastructure | Residential |
| 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 |
| 8080 | http-alt | tcp | — |
| Closed Ports | 25, 3389, 8443 (4 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS6167 |
| Network Prefix | 166.140.128.0/17 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 28% | 2 | 3 |
| routing | 8% | 1 | 1 |
| services | 17% | 2 | 3 |
| ownership | 17% | 2 | 3 |
| reputation | 8% | 1 | 2 |
| geolocation | 12% | 2 | 2 |
| Overall | 15% | 10 | 14 |
| Data Coherence | Mostly Consistent (82%) — 1 contradiction(s) |
| Attribution | Very Low (20%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Aging
| First Seen | 2026-07-03 10:48:49 UTC |
| Last Seen | 2026-10-28 07:58:54 UTC |
| Profile Built | 2026-11-14 03:45:27 UTC |
| Data Freshness | Aging |
| Signal Types | 20 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 166.140.234.203
Who owns the IP address 166.140.234.203?
166.140.234.203 is registered to Verizon Business. The address falls within the 166.139.0.0/16 network block. Registration is held at ARIN.
Where is 166.140.234.203 located?
Geolocation data places 166.140.234.203 in Chino Hills, California, United States. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 166.140.234.203 malicious or safe?
166.140.234.203 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 ports are open on 166.140.234.203?
Responsive ports observed on 166.140.234.203 include 80, 443, 22, 8080. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 166.140.234.203 a VPN, proxy, or data center address?
166.140.234.203 is classified as a mobile network and a residential network based on network ownership and behavioural analysis.