166.142.35.221
166.142.35.221 is an IPv4 address operated by CELLCO-PART - Verizon Business, US (AS6167), with approximate network location United States. It belongs to a mobile network. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); 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 | Multi-Service Host |
| Network Tier | End-User — Residential ISP endpoint |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 8080 | http-alt | tcp | — |
| Closed Ports | 22, 25, 443, 3389, 8443 (2 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS6167 |
| Network Prefix | 166.142.0.0/17 |
| Route mapping | Found |
| HSTS | Not detected |
| 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 | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Consistent (100%) |
| Attribution | Very Low (20%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-12 02:46:37 UTC |
| Last Seen | 2026-11-14 14:48:29 UTC |
| Profile Built | 2026-11-13 05:07:28 UTC |
| Data Freshness | Stale |
| Signal Types | 20 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 166.142.35.221
Who owns the IP address 166.142.35.221?
166.142.35.221 is registered to Verizon Business. The address falls within the 166.139.0.0/16 network block. Registration is held at ARIN.
Where is 166.142.35.221 located?
Geolocation data places 166.142.35.221 in Wisconsin. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 166.142.35.221 malicious or safe?
166.142.35.221 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 166.142.35.221?
Responsive ports observed on 166.142.35.221 include 80, 8080. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 166.142.35.221 a VPN, proxy, or data center address?
166.142.35.221 is classified as a mobile network and a residential network based on network ownership and behavioural analysis.