170.81.76.131
170.81.76.131 is an IPv4 address, with approximate network location João Pessoa, Brazil. It belongs to a residential connection with reverse DNS name fibratex.sigtel.com.br. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | SIGTEL SERVICOS DE TELECOMUNICACOES LTDA |
| ASN | — |
| Network Name | 297259 |
| CIDR Block | 170.81.76.0/22 |
| RIR | ARIN |
| Network registration country | BR |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | fibratex.sigtel.com.br |
| 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.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ 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 | AS266394 |
| Network Prefix | 170.81.76.0/24 |
| Route mapping | Found |
📅 Observation Timeline 🔄 Recent
| First Seen | 2026-11-07 11:00:17 UTC |
| Last Seen | 2026-11-08 11:13:58 UTC |
| Profile Built | 2026-11-12 19:30:28 UTC |
| Data Freshness | Recent |
| Signal Types | 12 |
| Total Observations | 13 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 170.81.76.131
Who owns the IP address 170.81.76.131?
170.81.76.131 is registered to SIGTEL SERVICOS DE TELECOMUNICACOES LTDA. The address falls within the 170.81.76.0/22 network block. Registration is held at ARIN.
Where is 170.81.76.131 located?
Geolocation data places 170.81.76.131 in João Pessoa, Paraíba, Brazil. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 170.81.76.131 malicious or safe?
170.81.76.131 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 170.81.76.131?
The reverse DNS (PTR) record for 170.81.76.131 is fibratex.sigtel.com.br. This hostname is not forward-confirmed, so it should be treated as a weak signal.
Is 170.81.76.131 a VPN, proxy, or data center address?
170.81.76.131 is classified as a residential network based on network ownership and behavioural analysis.