IPDebrief

131.221.91.231

IP Intelligence Dossier
Your IP: 216.73.217.131
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🌍 Geolocation

Country🇧🇷 Brazil
RegionSanta Catarina
CityJaraguá do Sul
Timezone—
Latitude-26.43
Longitude-49.15

🏢 Ownership & Registration

OrganizationUNIFIQUE TELECOMUNICACOES S/A
ASNAS28343
Network Name450050
CIDR Block131.221.88.0/22
RIRARIN
CountryBR
Abuse Contact—

🌐 DNS Intelligence

PTR131-221-91-231.unifique.net
Forward ConfirmedNo — PTR hostname does not resolve back to this IP (weak signal)
Forward Hostnames131-221-91-231.unifique.net

🔐 DNS Hygiene

Hygiene Score40% (Fair)
SPFPresent
DMARCNot configured
FCrDNSNot verified
DNSSECValid
CAANot configured

☁️ Network Classification

InfrastructureResidential
Service PurposeResidential Endpoint
Network TierEnd-User — Residential ISP endpoint
Residential

🔌 Services & Open Ports

PortServiceProtocolBanner
No open ports detected
Closed Ports22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned)
Server—
HTTP Title—

🔐 TLS Certificate

🔒
No certificate
Issued by —
N/A
SANsNone
Valid From—
Valid Until—

🛡️ Public Network Snapshot

Origin ASNAS28343
Network Prefix131.221.88.0/22
Route mappingFound

🎯 Confidence Breakdown

Per-dimension confidence scores based on source diversity and data freshness

DimensionScoreSourcesObservations
threat
17%
24
routing
8%
11
services
12%
22
ownership
12%
22
reputation
14%
13
geolocation
12%
22
Overall12%1014
Coverage: 6/6 dimensions · Data sufficiency: sufficient
Data CoherenceConsistent (100%)
AttributionModerate (50%)
OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid

📅 Observation Timeline 🔄 Live

First Seen2026-07-02 04:20:54 UTC
Last Seen2026-08-26 18:08:23 UTC
Profile Built2026-08-29 07:43:55 UTC
Data FreshnessLive
Signal Types20
Total Observations22
🔍 20 signal types · 22 observations collected
This report is generated from 20+ independent intelligence signals including ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds, behavioral fingerprinting, and more.
Full dossier details are available via our API.
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❓ Frequently Asked Questions About 131.221.91.231

Who owns the IP address 131.221.91.231?

131.221.91.231 is registered to UNIFIQUE TELECOMUNICACOES S/A. The address falls within the 131.221.88.0/22 network block. Registration is held at ARIN.

Where is 131.221.91.231 located?

Geolocation data places 131.221.91.231 in Jaraguá do Sul, Santa Catarina, Brazil. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.

Is 131.221.91.231 malicious or safe?

131.221.91.231 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 131.221.91.231?

The reverse DNS (PTR) record for 131.221.91.231 is 131-221-91-231.unifique.net. This hostname is not forward-confirmed, so it should be treated as a weak signal.

Is 131.221.91.231 a VPN, proxy, or data center address?

131.221.91.231 is classified as a residential network based on network ownership and behavioural analysis.

🏘️ Related IP Addresses

Nearby addresses in 131.221.88.0/22

131.221.91.129

Browse related networks

All addresses in AS28343🇧🇷 BrazilNetwork directory

ℹ️ About This Report

All data shown is publicly available network metadata — IP addresses do not reliably identify individuals. Assessments are probabilistic and should not be used as sole basis for access control decisions. To report an issue or request data review, contact admin@ipdebrief.com.