IPDebrief

37.66.222.221

IP Intelligence Dossier
Your IP: 216.73.216.157
{ } JSON 🔧 Full Actions API

🌍 Geolocation

Country🌐 France
RegionCS
CityLa-Plaine-Saint-Denis Cedex
Timezone—
Latitude—
Longitude—

🏢 Ownership & Registration

OrganizationSFR Legal Contact
ASNAS15557
Network NameSFR-INFRA
CIDR Block37.66.216.0/21
RIRRIPE
CountryFR
Abuse ContactAvailable via RDAP

🌐 DNS Intelligence

PTR221.222.66.37.rev.sfr.net
Forward ConfirmedYes — FCrDNS verified
Forward Hostnames221.222.66.37.rev.sfr.net

🔐 DNS Hygiene

Hygiene Score40% (Fair)
SPFPresent
DMARCNot configured
FCrDNSVerified
DNSSECNot signed
CAANot configured

☁️ Network Classification

InfrastructureMobile
Service PurposeFirewalled / No Services
Network TierUnknown — Insufficient routing data to classify
Mobile

🔌 Services & Open Ports

PortServiceProtocolBanner
No open ports detected
Server—
HTTP Title—

🔐 TLS Certificate

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

🛡️ Public Network Snapshot

Origin ASNAS15557
Network Prefix37.64.0.0/13
Route mappingFound

📅 Observation Timeline 🔄 Live

First Seen2026-10-05 05:52:16 UTC
Last Seen2026-10-05 05:52:16 UTC
Profile Built2026-10-05 05:56:24 UTC
Data FreshnessLive
Signal Types9
Total Observations9
🔍 9 signal types · 9 observations collected
This report is generated from 9+ 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 37.66.222.221

Who owns the IP address 37.66.222.221?

37.66.222.221 is registered to SFR Legal Contact. The address falls within the 37.66.216.0/21 network block. Registration is held at RIPE.

Where is 37.66.222.221 located?

Geolocation data places 37.66.222.221 in La-Plaine-Saint-Denis Cedex, CS, France. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.

Is 37.66.222.221 malicious or safe?

37.66.222.221 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 is the hostname for 37.66.222.221?

The reverse DNS (PTR) record for 37.66.222.221 is 221.222.66.37.rev.sfr.net. This hostname is forward-confirmed, meaning it resolves back to the same address.

Is 37.66.222.221 a VPN, proxy, or data center address?

37.66.222.221 is classified as a mobile network based on network ownership and behavioural analysis.

🏘️ Related IP Addresses

Nearby addresses in 37.66.216.0/21

37.66.222.16137.66.222.203

Browse related networks

All addresses in AS15557Network 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.