177.33.136.105
177.33.136.105 is an IPv4 address operated by AS28573 - Claro NXT Telecomunicacoes Ltda, BR (AS28573), with approximate network location São Paulo, Brazil. It belongs to a mobile network with reverse DNS name b1218869.virtua.com.br. As of November 14, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Claro NXT Telecomunicacoes Ltda |
| ASN | AS28573 |
| Network Name | 157036 |
| CIDR Block | 177.32.0.0/14 |
| RIR | LACNIC |
| Network registration country | BR |
| Registrant address country | BR |
| Routing operator | AS28573 - Claro NXT Telecomunicacoes Ltda, BR |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | b1218869.virtua.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | b1218869.virtua.com.br |
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 found at queried name br |
| spf | Unknown / lookup inconclusive b1218869.virtua.com.br |
| dmarc | Unknown / lookup inconclusive _dmarc.b1218869.virtua.com.br |
| dnssec | Unknown / lookup inconclusive 105.136.33.177.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive b1218869.virtua.com.br |
☁️ 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
| Port | Latest capture attempt |
|---|---|
| 443 | Certificate not captured; current certificate unknown (unreachable) |
| 8443 | Certificate not captured; current certificate unknown (unreachable) |
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS28573 |
| Network Prefix | 177.33.136.0/22 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 18% | 1 | 2 |
| routing | 13% | 1 | 1 |
| services | 18% | 1 | 2 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 19% | 2 | 2 |
| Overall | 11% | 5 | 7 |
| Data Coherence | Consistent (100%) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-04 21:01:10 UTC |
| Last Seen | 2026-11-14 03:21:16 UTC |
| Profile Built | 2026-11-14 03:43:23 UTC |
| Data Freshness | Live |
| Signal Types | 16 |
| Total Observations | 20 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 177.33.136.105
Who owns the IP address 177.33.136.105?
177.33.136.105 is registered to Claro NXT Telecomunicacoes Ltda. The address falls within the 177.32.0.0/14 network block. Registration is held at LACNIC.
Where is 177.33.136.105 located?
Geolocation data places 177.33.136.105 in São Paulo, SP, Brazil. The local time zone is America/Sao_Paulo. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 177.33.136.105 malicious or safe?
177.33.136.105 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 177.33.136.105?
The reverse DNS (PTR) record for 177.33.136.105 is b1218869.virtua.com.br. This hostname is not forward-confirmed, so it should be treated as a weak signal.
Is 177.33.136.105 a VPN, proxy, or data center address?
177.33.136.105 is classified as a mobile network and a residential network based on network ownership and behavioural analysis.