177.37.88.165
🏢 Ownership & Registration
| Organization | UltraTelecom Provedora de Internet |
| ASN | AS262417 |
| Network Name | 203987 |
| CIDR Block | 177.37.88.0/21 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | as262417.sc.ultrat.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | as262417.sc.ultrat.com.br |
🔐 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS262417 |
| Network Prefix | 177.37.88.0/23 |
| Route mapping | Found |
🎯 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 | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-05 11:42:44 UTC |
| Last Seen | 2026-08-26 22:22:20 UTC |
| Profile Built | 2026-08-29 07:17:57 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 20 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 177.37.88.165
Who owns the IP address 177.37.88.165?
177.37.88.165 is registered to UltraTelecom Provedora de Internet. The address falls within the 177.37.88.0/21 network block. Registration is held at LACNIC.
Where is 177.37.88.165 located?
Geolocation data places 177.37.88.165 in Curitibanos, Santa Catarina, Brazil. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 177.37.88.165 malicious or safe?
177.37.88.165 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 177.37.88.165?
The reverse DNS (PTR) record for 177.37.88.165 is as262417.sc.ultrat.com.br. This hostname is not forward-confirmed, so it should be treated as a weak signal.
Is 177.37.88.165 a VPN, proxy, or data center address?
177.37.88.165 is classified as a residential network based on network ownership and behavioural analysis.