IPDebrief

37.66.55.3

IP Intelligence Dossier
Your IP: 216.73.217.75

37.66.55.3 is an IPv4 address announced by AS15557, with approximate network location Annecy, France. It belongs to a mobile network. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

{ } JSON

🌍 Geolocation

Country🇫🇷 France
Location scopeApproximate network location. Distributed and anycast services can vary by observation point.
Anycast classificationUnverified (not proof of unicast)
RegionRhône-Alpes
CityAnnecy
TimezoneEurope/Paris
Latitude45.92
Longitude6.09

🏢 Ownership & Registration

Registered holderSFR Legal Contact
ASNAS15557
Network NameSFR-INFRA
CIDR Block37.66.48.0/21
RIRRIPE
Network registration countryFR
Abuse ContactAvailable via RDAP

🌐 DNS Intelligence

PTR RecordNo PTR
Forward ConfirmedNo — 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.

spfNot checked
dmarcNot checked
fcrDnsNot checked
dnssecNot checked
caaNot checked

☁️ Network Classification

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

🔌 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 captured; current certificate unknown
Issued by —
N/A
SANsNone
Valid From—
Valid Until—

🛡️ Public Network Snapshot

Origin ASNAS15557
Network Prefix37.64.0.0/13
Route mappingFound

📅 Observation Timeline 🔄 Recent

First Seen2026-11-08 12:35:06 UTC
Last Seen2026-11-09 23:16:48 UTC
Profile Built2026-11-12 23:20:20 UTC
Data FreshnessRecent
Signal Types14
Total Observations14
🔍 14 signal types · 14 observations collected
This report is generated from 14+ 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.
{ } JSON API 📧 Enterprise Access

❓ Frequently Asked Questions About 37.66.55.3

Who owns the IP address 37.66.55.3?

37.66.55.3 is registered to SFR Legal Contact. The address falls within the 37.66.48.0/21 network block. Registration is held at RIPE.

Where is 37.66.55.3 located?

Geolocation data places 37.66.55.3 in Annecy, Rhône-Alpes, France. The local time zone is Europe/Paris. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.

Is 37.66.55.3 malicious or safe?

37.66.55.3 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.

Is 37.66.55.3 a VPN, proxy, or data center address?

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

🏘️ Related IP Addresses

Nearby addresses in 37.66.48.0/21

37.66.55.176

Browse related networks

All addresses in AS15557🇫🇷 FranceNetwork 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.