37.66.55.176
37.66.55.176 is an IPv4 address operated by LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR (AS15557), with approximate network location Annecy, France. It belongs to a mobile network with reverse DNS name 176.55.66.37.rev.sfr.net. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | SFR Legal Contact |
| ASN | AS15557 |
| Network Name | SFR-INFRA |
| CIDR Block | 37.66.48.0/21 |
| RIR | RIPE |
| Network registration country | FR |
| Routing operator | LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 176.55.66.37.rev.sfr.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 176.55.66.37.rev.sfr.net |
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 net |
| spf | Unknown / lookup inconclusive 176.55.66.37.rev.sfr.net |
| dmarc | Unknown / lookup inconclusive _dmarc.176.55.66.37.rev.sfr.net |
| dnssec | Unknown / lookup inconclusive 176.55.66.37.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive 176.55.66.37.rev.sfr.net |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | AS15557 |
| Network Prefix | 37.64.0.0/13 |
| Route mapping | Found |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-05 16:48:08 UTC |
| Last Seen | 2026-11-07 18:50:11 UTC |
| Profile Built | 2026-11-13 09:11:11 UTC |
| Data Freshness | Live |
| Signal Types | 15 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 37.66.55.176
Who owns the IP address 37.66.55.176?
37.66.55.176 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 37.66.55.176 located?
Geolocation data places 37.66.55.176 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 37.66.55.176 malicious or safe?
37.66.55.176 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 37.66.55.176?
The reverse DNS (PTR) record for 37.66.55.176 is 176.55.66.37.rev.sfr.net. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 37.66.55.176 a VPN, proxy, or data center address?
37.66.55.176 is classified as a mobile network based on network ownership and behavioural analysis.